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<button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <nav class="pagination is-small is-centered breathe-horizontal" role="navigation" aria-label="pagination"> <a href="" class="pagination-previous is-invisible">Previous </a> <a href="/search/?searchtype=author&query=Brandin%2C+A&start=50" class="pagination-next" >Next </a> <ul class="pagination-list"> <li> <a href="/search/?searchtype=author&query=Brandin%2C+A&start=0" class="pagination-link is-current" aria-label="Goto page 1">1 </a> </li> <li> <a href="/search/?searchtype=author&query=Brandin%2C+A&start=50" class="pagination-link " aria-label="Page 2" aria-current="page">2 </a> </li> <li> <a href="/search/?searchtype=author&query=Brandin%2C+A&start=100" class="pagination-link " aria-label="Page 3" aria-current="page">3 </a> </li> </ul> </nav> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2402.17025">arXiv:2402.17025</a> <span> [<a href="https://arxiv.org/pdf/2402.17025">pdf</a>, <a href="https://arxiv.org/format/2402.17025">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> $K_S^0$ meson production in inelastic p+p interactions at 31, 40 and 80 GeV/c beam momentum measured by NA61/SHINE at the CERN SPS </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Abgrall%2C+N">N. Abgrall</a>, <a href="/search/hep-ex?searchtype=author&query=Adhikary%2C+H">H. Adhikary</a>, <a href="/search/hep-ex?searchtype=author&query=Adrich%2C+P">P. Adrich</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+K+K">K. K. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Amin%2C+N">N. Amin</a>, <a href="/search/hep-ex?searchtype=author&query=Andronov%2C+E+V">E. V. Andronov</a>, <a href="/search/hep-ex?searchtype=author&query=Anti%C4%8Di%C4%87%2C+T">T. Anti膷i膰</a>, <a href="/search/hep-ex?searchtype=author&query=Arsene%2C+I+-">I. -C. Arsene</a>, <a href="/search/hep-ex?searchtype=author&query=Bajda%2C+M">M. Bajda</a>, <a href="/search/hep-ex?searchtype=author&query=Balkova%2C+Y">Y. Balkova</a>, <a href="/search/hep-ex?searchtype=author&query=Baszczyk%2C+M">M. Baszczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Battaglia%2C+D">D. Battaglia</a>, <a href="/search/hep-ex?searchtype=author&query=Bazgir%2C+A">A. Bazgir</a>, <a href="/search/hep-ex?searchtype=author&query=Bhosale%2C+S">S. Bhosale</a>, <a href="/search/hep-ex?searchtype=author&query=Bielewicz%2C+M">M. Bielewicz</a>, <a href="/search/hep-ex?searchtype=author&query=Blondel%2C+A">A. Blondel</a>, <a href="/search/hep-ex?searchtype=author&query=Bogomilov%2C+M">M. Bogomilov</a>, <a href="/search/hep-ex?searchtype=author&query=Bondar%2C+Y">Y. Bondar</a>, <a href="/search/hep-ex?searchtype=author&query=Bostan%2C+N">N. Bostan</a>, <a href="/search/hep-ex?searchtype=author&query=Brandin%2C+A">A. Brandin</a>, <a href="/search/hep-ex?searchtype=author&query=Bravar%2C+A">A. Bravar</a>, <a href="/search/hep-ex?searchtype=author&query=Brylinski%2C+W">W. Brylinski</a>, <a href="/search/hep-ex?searchtype=author&query=Brzychczyk%2C+J">J. Brzychczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Buryakov%2C+M">M. Buryakov</a>, <a href="/search/hep-ex?searchtype=author&query=Camino%2C+A+F">A. F. Camino</a> , et al. (133 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2402.17025v1-abstract-short" style="display: inline;"> Measurements of $K_S^0$ meson production via its $蟺^{+} 蟺^{-}$ decay mode in inelastic $\textit{p+p}$ interactions at incident projectile momenta of 31, 40 and 80 GeV/$c$ ($\sqrt{s_{NN}}=7.7, 8.8$ and $12.3$ GeV, respectively) are presented. The data were recorded by the NA61/SHINE spectrometer at the CERN Super Proton Synchrotron. Double-differential distributions were obtained in transverse mome… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.17025v1-abstract-full').style.display = 'inline'; document.getElementById('2402.17025v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2402.17025v1-abstract-full" style="display: none;"> Measurements of $K_S^0$ meson production via its $蟺^{+} 蟺^{-}$ decay mode in inelastic $\textit{p+p}$ interactions at incident projectile momenta of 31, 40 and 80 GeV/$c$ ($\sqrt{s_{NN}}=7.7, 8.8$ and $12.3$ GeV, respectively) are presented. The data were recorded by the NA61/SHINE spectrometer at the CERN Super Proton Synchrotron. Double-differential distributions were obtained in transverse momentum and rapidity. The mean multiplicities of $K_S^0$ mesons were determined to be $(5.95 \pm 0.19 (stat) \pm 0.22 (sys)) \times 10^{-2}$ at 31 GeV/$c$, $(7.61 \pm 0.13 (stat) \pm 0.31 (sys)) \times 10^{-2}$ at 40 GeV/$c$ and $(11.58 \pm 0.12 (stat) \pm 0.37 (sys)) \times 10^{-2}$ at 80 GeV/$c$. The results on $K^{0}_{S}$ production are compared with model calculations (Epos1.99, SMASH 2.0 and PHSD) as well as with published data from other experiments. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.17025v1-abstract-full').style.display = 'none'; document.getElementById('2402.17025v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 February, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">arXiv admin note: substantial text overlap with arXiv:2106.07535</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2401.03445">arXiv:2401.03445</a> <span> [<a href="https://arxiv.org/pdf/2401.03445">pdf</a>, <a href="https://arxiv.org/format/2401.03445">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Search for a critical point of strongly-interacting matter in central $^{40}$Ar +$^{45}$Sc collisions at 13$A$-75$A$ GeV/$c$ beam momentum </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+T+N">The NA61/SHINE Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Adhikary%2C+H">H. Adhikary</a>, <a href="/search/hep-ex?searchtype=author&query=Adrich%2C+P">P. Adrich</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+K+K">K. K. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Amin%2C+N">N. Amin</a>, <a href="/search/hep-ex?searchtype=author&query=Andronov%2C+E+V">E. V. Andronov</a>, <a href="/search/hep-ex?searchtype=author&query=Anti%C4%87i%C4%87%2C+T">T. Anti膰i膰</a>, <a href="/search/hep-ex?searchtype=author&query=Arsene%2C+I+-">I. -C. Arsene</a>, <a href="/search/hep-ex?searchtype=author&query=Bajda%2C+M">M. Bajda</a>, <a href="/search/hep-ex?searchtype=author&query=Balkova%2C+Y">Y. Balkova</a>, <a href="/search/hep-ex?searchtype=author&query=Baszczyk%2C+M">M. Baszczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Battaglia%2C+D">D. Battaglia</a>, <a href="/search/hep-ex?searchtype=author&query=Bazgir%2C+A">A. Bazgir</a>, <a href="/search/hep-ex?searchtype=author&query=Bhosale%2C+S">S. Bhosale</a>, <a href="/search/hep-ex?searchtype=author&query=Bielewicz%2C+M">M. Bielewicz</a>, <a href="/search/hep-ex?searchtype=author&query=Blondel%2C+A">A. Blondel</a>, <a href="/search/hep-ex?searchtype=author&query=Bogomilov%2C+M">M. Bogomilov</a>, <a href="/search/hep-ex?searchtype=author&query=Bondar%2C+Y">Y. Bondar</a>, <a href="/search/hep-ex?searchtype=author&query=Bostan%2C+N">N. Bostan</a>, <a href="/search/hep-ex?searchtype=author&query=Brandin%2C+A">A. Brandin</a>, <a href="/search/hep-ex?searchtype=author&query=Bryli%C5%84ski%2C+W">W. Bryli艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=Brzychczyk%2C+J">J. Brzychczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Buryakov%2C+M">M. Buryakov</a>, <a href="/search/hep-ex?searchtype=author&query=Camino%2C+A+F">A. F. Camino</a> , et al. (133 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2401.03445v1-abstract-short" style="display: inline;"> The critical point of strongly interacting matter is searched for at the CERN SPS by the NA61/SHINE experiment in central $^{40}$Ar +$^{45}$Sc collisions at 13$A$, 19$A$, 30$A$, 40$A$, and 75$A$ GeV/$c$. The dependence of the second-order scaled factorial moments of proton multiplicity distributions on the number of subdivisions in transverse momentum space is measured. The intermittency analysis… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.03445v1-abstract-full').style.display = 'inline'; document.getElementById('2401.03445v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2401.03445v1-abstract-full" style="display: none;"> The critical point of strongly interacting matter is searched for at the CERN SPS by the NA61/SHINE experiment in central $^{40}$Ar +$^{45}$Sc collisions at 13$A$, 19$A$, 30$A$, 40$A$, and 75$A$ GeV/$c$. The dependence of the second-order scaled factorial moments of proton multiplicity distributions on the number of subdivisions in transverse momentum space is measured. The intermittency analysis uses statistically independent data sets for every subdivision in transverse and cumulative-transverse momentum variables. The results obtained do not indicate the searched intermittent pattern. An upper limit on the fraction of correlated protons and the intermittency index is obtained based on a comparison with the Power-law Model. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.03445v1-abstract-full').style.display = 'none'; document.getElementById('2401.03445v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 7 January, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">38 pages, 20 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2312.13706">arXiv:2312.13706</a> <span> [<a href="https://arxiv.org/pdf/2312.13706">pdf</a>, <a href="https://arxiv.org/format/2312.13706">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Measurements of higher-order cumulants of multiplicity and net-electric charge distributions in inelastic proton-proton interactions by NA61/SHINE </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=NA61%2FSHINE"> NA61/SHINE</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Adhikary%2C+H">H. Adhikary</a>, <a href="/search/hep-ex?searchtype=author&query=Adrich%2C+P">P. Adrich</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+K+K">K. K. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Amin%2C+N">N. Amin</a>, <a href="/search/hep-ex?searchtype=author&query=Andronov%2C+E+V">E. V. Andronov</a>, <a href="/search/hep-ex?searchtype=author&query=Arsene%2C+I+-">I. -C. Arsene</a>, <a href="/search/hep-ex?searchtype=author&query=Bajda%2C+M">M. Bajda</a>, <a href="/search/hep-ex?searchtype=author&query=Balkova%2C+Y">Y. Balkova</a>, <a href="/search/hep-ex?searchtype=author&query=Battaglia%2C+D">D. Battaglia</a>, <a href="/search/hep-ex?searchtype=author&query=Bazgir%2C+A">A. Bazgir</a>, <a href="/search/hep-ex?searchtype=author&query=Bhosale%2C+S">S. Bhosale</a>, <a href="/search/hep-ex?searchtype=author&query=Bielewicz%2C+M">M. Bielewicz</a>, <a href="/search/hep-ex?searchtype=author&query=Blondel%2C+A">A. Blondel</a>, <a href="/search/hep-ex?searchtype=author&query=Bogomilov%2C+M">M. Bogomilov</a>, <a href="/search/hep-ex?searchtype=author&query=Bondar%2C+Y">Y. Bondar</a>, <a href="/search/hep-ex?searchtype=author&query=Borucka%2C+A">A. Borucka</a>, <a href="/search/hep-ex?searchtype=author&query=Brandin%2C+A">A. Brandin</a>, <a href="/search/hep-ex?searchtype=author&query=Bryli%C5%84ski%2C+W">W. Bryli艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=Brzychczyk%2C+J">J. Brzychczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Buryakov%2C+M">M. Buryakov</a>, <a href="/search/hep-ex?searchtype=author&query=Camino%2C+A+F">A. F. Camino</a>, <a href="/search/hep-ex?searchtype=author&query=%C4%86irkovi%C4%87%2C+M">M. 膯irkovi膰</a>, <a href="/search/hep-ex?searchtype=author&query=Csan%C3%A1d%2C+M">M. Csan谩d</a> , et al. (126 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2312.13706v2-abstract-short" style="display: inline;"> This paper presents the energy dependence of multiplicity and net-electric charge fluctuations in p+p interactions at beam momenta 20, 31, 40, 80, and 158 GeV/c. Results are corrected for the experimental biases and quantified with the use of cumulants and factorial cumulants. Cumulant ratios are an essential tool in the search for the critical point of strongly interacting matter in heavy ion col… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2312.13706v2-abstract-full').style.display = 'inline'; document.getElementById('2312.13706v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2312.13706v2-abstract-full" style="display: none;"> This paper presents the energy dependence of multiplicity and net-electric charge fluctuations in p+p interactions at beam momenta 20, 31, 40, 80, and 158 GeV/c. Results are corrected for the experimental biases and quantified with the use of cumulants and factorial cumulants. Cumulant ratios are an essential tool in the search for the critical point of strongly interacting matter in heavy ion collisions. Measurements performed in p+p interactions provide a vital baseline estimation in these studies. The measured signals are compared with the string hadronic models EPOS1.99 and FTFP-BERT. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2312.13706v2-abstract-full').style.display = 'none'; document.getElementById('2312.13706v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 December, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">28 pages, 10 figures. The version to be published in Eur. Phys. J. C</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2312.06572">arXiv:2312.06572</a> <span> [<a href="https://arxiv.org/pdf/2312.06572">pdf</a>, <a href="https://arxiv.org/format/2312.06572">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Evidence of isospin-symmetry violation in high-energy collisions of atomic nuclei </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+N">NA61/SHINE Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Adhikary%2C+H">H. Adhikary</a>, <a href="/search/hep-ex?searchtype=author&query=Adrich%2C+P">P. Adrich</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+K+K">K. K. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Amin%2C+N">N. Amin</a>, <a href="/search/hep-ex?searchtype=author&query=Andronov%2C+E+V">E. V. Andronov</a>, <a href="/search/hep-ex?searchtype=author&query=Arsene%2C+I+-">I. -C. Arsene</a>, <a href="/search/hep-ex?searchtype=author&query=Bajda%2C+M">M. Bajda</a>, <a href="/search/hep-ex?searchtype=author&query=Balkova%2C+Y">Y. Balkova</a>, <a href="/search/hep-ex?searchtype=author&query=Battaglia%2C+D">D. Battaglia</a>, <a href="/search/hep-ex?searchtype=author&query=Bazgir%2C+A">A. Bazgir</a>, <a href="/search/hep-ex?searchtype=author&query=Bhosale%2C+S">S. Bhosale</a>, <a href="/search/hep-ex?searchtype=author&query=Bielewicz%2C+M">M. Bielewicz</a>, <a href="/search/hep-ex?searchtype=author&query=Blondel%2C+A">A. Blondel</a>, <a href="/search/hep-ex?searchtype=author&query=Bogomilov%2C+M">M. Bogomilov</a>, <a href="/search/hep-ex?searchtype=author&query=Bondar%2C+Y">Y. Bondar</a>, <a href="/search/hep-ex?searchtype=author&query=Brandin%2C+A">A. Brandin</a>, <a href="/search/hep-ex?searchtype=author&query=Brylinski%2C+W">W. Brylinski</a>, <a href="/search/hep-ex?searchtype=author&query=Brzychczyk%2C+J">J. Brzychczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Buryakov%2C+M">M. Buryakov</a>, <a href="/search/hep-ex?searchtype=author&query=Camino%2C+A+F">A. F. Camino</a>, <a href="/search/hep-ex?searchtype=author&query=Cirkovic%2C+M">M. Cirkovic</a>, <a href="/search/hep-ex?searchtype=author&query=Csan%C3%A1d%2C+M">M. Csan谩d</a>, <a href="/search/hep-ex?searchtype=author&query=Cybowska%2C+J">J. Cybowska</a> , et al. (133 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2312.06572v6-abstract-short" style="display: inline;"> Strong interactions preserve an approximate isospin symmetry between up ($u$) and down ($d$) quarks, part of the more general flavor symmetry. In the case of $K$ meson production, if this isospin symmetry were exact, it would result in equal numbers of charged ($K^+$ and $K^-$) and neutral ($K^0$ and $\overline K^{\,0}$) mesons in the final state. Here, we report results on the relative abundance… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2312.06572v6-abstract-full').style.display = 'inline'; document.getElementById('2312.06572v6-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2312.06572v6-abstract-full" style="display: none;"> Strong interactions preserve an approximate isospin symmetry between up ($u$) and down ($d$) quarks, part of the more general flavor symmetry. In the case of $K$ meson production, if this isospin symmetry were exact, it would result in equal numbers of charged ($K^+$ and $K^-$) and neutral ($K^0$ and $\overline K^{\,0}$) mesons in the final state. Here, we report results on the relative abundance of charged over neutral $K$ meson production in argon and scandium nuclei collisions at a center-of-mass energy of 11.9 GeV per nucleon pair. We find that the production of $K^+$ and $K^-$ mesons at mid-rapidity is $(18.4\pm 6.1)\%$ higher than that of the neutral $K$ mesons. Although with large uncertainties, earlier data on nucleus-nucleus collisions in the collision center-of-mass energy range $2.6 < \sqrt{s_{NN}} < 200$~\GeV are consistent with the present result. Using well-established models for hadron production, we demonstrate that known isospin-symmetry breaking effects and the initial nuclei containing more neutrons than protons lead only to a small (few percent) deviation of the charged-to-neutral kaon ratio from unity at high energies. Thus, they cannot explain the measurements. The significance of the flavor-symmetry violation beyond the known effects is 4.7$蟽$ when the compilation of world data with uncertainties quoted by the experiments is used. New systematic, high-precision measurements and theoretical efforts are needed to establish the origin of the observed large isospin-symmetry breaking. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2312.06572v6-abstract-full').style.display = 'none'; document.getElementById('2312.06572v6-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 18 October, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 11 December, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">The paper includes updates based on the final results of $K^+$ and $K^-$ yields published in Eur. Phys. J.C 84 (2024) 4, 416</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2023-283 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2308.16683">arXiv:2308.16683</a> <span> [<a href="https://arxiv.org/pdf/2308.16683">pdf</a>, <a href="https://arxiv.org/format/2308.16683">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-024-12602-2">10.1140/epjc/s10052-024-12602-2 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurements of $蟺^\pm$, $K^\pm$, $p$ and $\bar{p}$ spectra in $^{40}$Ar+$^{45}$Sc collisions at 13$A$ to 150$A$ GeV/$c$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+N">NA61/SHINE Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Adhikary%2C+H">H. Adhikary</a>, <a href="/search/hep-ex?searchtype=author&query=Adrich%2C+P">P. Adrich</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+K+K">K. K. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Amin%2C+N">N. Amin</a>, <a href="/search/hep-ex?searchtype=author&query=Andronov%2C+E+V">E. V. Andronov</a>, <a href="/search/hep-ex?searchtype=author&query=Anti%C4%87i%C4%87%2C+T">T. Anti膰i膰</a>, <a href="/search/hep-ex?searchtype=author&query=Arsene%2C+I+-">I. -C. Arsene</a>, <a href="/search/hep-ex?searchtype=author&query=Bajda%2C+M">M. Bajda</a>, <a href="/search/hep-ex?searchtype=author&query=Balkova%2C+Y">Y. Balkova</a>, <a href="/search/hep-ex?searchtype=author&query=Baszczyk%2C+M">M. Baszczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Battaglia%2C+D">D. Battaglia</a>, <a href="/search/hep-ex?searchtype=author&query=Bazgir%2C+A">A. Bazgir</a>, <a href="/search/hep-ex?searchtype=author&query=Bhosale%2C+S">S. Bhosale</a>, <a href="/search/hep-ex?searchtype=author&query=Bielewicz%2C+M">M. Bielewicz</a>, <a href="/search/hep-ex?searchtype=author&query=Blondel%2C+A">A. Blondel</a>, <a href="/search/hep-ex?searchtype=author&query=Bogomilov%2C+M">M. Bogomilov</a>, <a href="/search/hep-ex?searchtype=author&query=Bondar%2C+Y">Y. Bondar</a>, <a href="/search/hep-ex?searchtype=author&query=Bostan%2C+N">N. Bostan</a>, <a href="/search/hep-ex?searchtype=author&query=Brandin%2C+A">A. Brandin</a>, <a href="/search/hep-ex?searchtype=author&query=Bryli%C5%84ski%2C+W">W. Bryli艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=Brzychczyk%2C+J">J. Brzychczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Buryakov%2C+M">M. Buryakov</a>, <a href="/search/hep-ex?searchtype=author&query=Camino%2C+A+F">A. F. Camino</a> , et al. (131 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2308.16683v4-abstract-short" style="display: inline;"> The NA61/SHINE experiment at the CERN Super Proton Synchrotron studies the onset of deconfinement in strongly interacting matter through a beam energy scan of particle production in collisions of nuclei of varied sizes. This paper presents results on inclusive double-differential spectra, transverse momentum and rapidity distributions and mean multiplicities of $蟺^\pm$, $K^\pm$, $p$ and $\bar{p}$… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2308.16683v4-abstract-full').style.display = 'inline'; document.getElementById('2308.16683v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2308.16683v4-abstract-full" style="display: none;"> The NA61/SHINE experiment at the CERN Super Proton Synchrotron studies the onset of deconfinement in strongly interacting matter through a beam energy scan of particle production in collisions of nuclei of varied sizes. This paper presents results on inclusive double-differential spectra, transverse momentum and rapidity distributions and mean multiplicities of $蟺^\pm$, $K^\pm$, $p$ and $\bar{p}$ produced in $^{40}$Ar+$^{45}$Sc collisions at beam momenta of 13$A$, 19$A$, 30$A$, 40$A$, 75$A$ and 150$A$~\GeVc. The analysis uses the 10\% most central collisions, where the observed forward energy defines centrality. The energy dependence of the $K^\pm$/$蟺^\pm$ ratios as well as of inverse slope parameters of the $K^\pm$ transverse mass distributions are placed in between those found in inelastic $p$+$p$ and central Pb+Pb collisions. The results obtained here establish a system-size dependence of hadron production properties that so far cannot be explained either within statistical or dynamical models. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2308.16683v4-abstract-full').style.display = 'none'; document.getElementById('2308.16683v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 April, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 31 August, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2023-179 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. C 84, 416 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2306.02961">arXiv:2306.02961</a> <span> [<a href="https://arxiv.org/pdf/2306.02961">pdf</a>, <a href="https://arxiv.org/format/2306.02961">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Measurements of $蟺^+$, $蟺^-$, $p$, $\bar{p}$, $K^+$ and $K^-$ production in 120 GeV/$c$ p + C interactions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Adhikary%2C+H">H. Adhikary</a>, <a href="/search/hep-ex?searchtype=author&query=Adrich%2C+P">P. Adrich</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+K+K">K. K. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Amin%2C+N">N. Amin</a>, <a href="/search/hep-ex?searchtype=author&query=Andronov%2C+E+V">E. V. Andronov</a>, <a href="/search/hep-ex?searchtype=author&query=Anti%C4%87i%C4%87%2C+T">T. Anti膰i膰</a>, <a href="/search/hep-ex?searchtype=author&query=Arsene%2C+I+-">I. -C. Arsene</a>, <a href="/search/hep-ex?searchtype=author&query=Bajda%2C+M">M. Bajda</a>, <a href="/search/hep-ex?searchtype=author&query=Balkova%2C+Y">Y. Balkova</a>, <a href="/search/hep-ex?searchtype=author&query=Baszczyk%2C+M">M. Baszczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Battaglia%2C+D">D. Battaglia</a>, <a href="/search/hep-ex?searchtype=author&query=Bazgir%2C+A">A. Bazgir</a>, <a href="/search/hep-ex?searchtype=author&query=Bhosale%2C+S">S. Bhosale</a>, <a href="/search/hep-ex?searchtype=author&query=Bielewicz%2C+M">M. Bielewicz</a>, <a href="/search/hep-ex?searchtype=author&query=Blondel%2C+A">A. Blondel</a>, <a href="/search/hep-ex?searchtype=author&query=Bogomilov%2C+M">M. Bogomilov</a>, <a href="/search/hep-ex?searchtype=author&query=Bondar%2C+Y">Y. Bondar</a>, <a href="/search/hep-ex?searchtype=author&query=Bostan%2C+N">N. Bostan</a>, <a href="/search/hep-ex?searchtype=author&query=Brandin%2C+A">A. Brandin</a>, <a href="/search/hep-ex?searchtype=author&query=Bryli%C5%84ski%2C+W">W. Bryli艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=Brzychczyk%2C+J">J. Brzychczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Buryakov%2C+M">M. Buryakov</a>, <a href="/search/hep-ex?searchtype=author&query=Camino%2C+A+F">A. F. Camino</a>, <a href="/search/hep-ex?searchtype=author&query=%C4%86irkovi%C4%87%2C+M">M. 膯irkovi膰</a>, <a href="/search/hep-ex?searchtype=author&query=Csan%C3%A1d%2C+M">M. Csan谩d</a> , et al. (130 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2306.02961v2-abstract-short" style="display: inline;"> This paper presents multiplicity measurements of charged hadrons produced in 120 GeV/$c$ proton-carbon interactions. The measurements were made using data collected at the NA61/SHINE experiment during two different data-taking periods, with increased phase space coverage in the second configuration due to the addition of new subdetectors. Particle identification via $dE/dx$ was employed to obtain… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2306.02961v2-abstract-full').style.display = 'inline'; document.getElementById('2306.02961v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2306.02961v2-abstract-full" style="display: none;"> This paper presents multiplicity measurements of charged hadrons produced in 120 GeV/$c$ proton-carbon interactions. The measurements were made using data collected at the NA61/SHINE experiment during two different data-taking periods, with increased phase space coverage in the second configuration due to the addition of new subdetectors. Particle identification via $dE/dx$ was employed to obtain double-differential production multiplicities of $蟺^+$, $蟺^-$, $p$, $\bar{p}$, $K^+$ and $K^-$. These measurements are presented as a function of laboratory momentum in intervals of laboratory polar angle covering the range from 0 to 450 mrad. They provide crucial inputs for current and future long-baseline neutrino experiments, where they are used to estimate the initial neutrino flux. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2306.02961v2-abstract-full').style.display = 'none'; document.getElementById('2306.02961v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 October, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 June, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2305.07557">arXiv:2305.07557</a> <span> [<a href="https://arxiv.org/pdf/2305.07557">pdf</a>, <a href="https://arxiv.org/format/2305.07557">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Search for the critical point of strongly-interacting matter in ${}^{40}$Ar + ${}^{45}$Sc collisions at 150A GeV/c using scaled factorial moments of protons </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+N">NA61/SHINE Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Adhikary%2C+H">H. Adhikary</a>, <a href="/search/hep-ex?searchtype=author&query=Adrich%2C+P">P. Adrich</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+K+K">K. K. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Amin%2C+N">N. Amin</a>, <a href="/search/hep-ex?searchtype=author&query=Andronov%2C+E+V">E. V. Andronov</a>, <a href="/search/hep-ex?searchtype=author&query=Anti%C4%87i%C4%87%2C+T">T. Anti膰i膰</a>, <a href="/search/hep-ex?searchtype=author&query=Arsene%2C+I+-">I. -C. Arsene</a>, <a href="/search/hep-ex?searchtype=author&query=Bajda%2C+M">M. Bajda</a>, <a href="/search/hep-ex?searchtype=author&query=Balkova%2C+Y">Y. Balkova</a>, <a href="/search/hep-ex?searchtype=author&query=Baszczyk%2C+M">M. Baszczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Battaglia%2C+D">D. Battaglia</a>, <a href="/search/hep-ex?searchtype=author&query=Bazgir%2C+A">A. Bazgir</a>, <a href="/search/hep-ex?searchtype=author&query=Bhosale%2C+S">S. Bhosale</a>, <a href="/search/hep-ex?searchtype=author&query=Bielewicz%2C+M">M. Bielewicz</a>, <a href="/search/hep-ex?searchtype=author&query=Blondel%2C+A">A. Blondel</a>, <a href="/search/hep-ex?searchtype=author&query=Bogomilov%2C+M">M. Bogomilov</a>, <a href="/search/hep-ex?searchtype=author&query=Bondar%2C+Y">Y. Bondar</a>, <a href="/search/hep-ex?searchtype=author&query=Bostan%2C+N">N. Bostan</a>, <a href="/search/hep-ex?searchtype=author&query=Brandin%2C+A">A. Brandin</a>, <a href="/search/hep-ex?searchtype=author&query=Bryli%C5%84ski%2C+W">W. Bryli艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=Brzychczyk%2C+J">J. Brzychczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Buryakov%2C+M">M. Buryakov</a>, <a href="/search/hep-ex?searchtype=author&query=Camino%2C+A+F">A. F. Camino</a> , et al. (136 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2305.07557v1-abstract-short" style="display: inline;"> The critical point of dense, strongly interacting matter is searched for at the CERN SPS in ${}^{40}$Ar + ${}^{45}$Sc collisions at 150A GeV/c. The dependence of second-order scaled factorial moments of proton multiplicity distribution on the number of subdivisions of transverse momentum space is measured. The intermittency analysis is performed using both transverse momentum and cumulative transv… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2305.07557v1-abstract-full').style.display = 'inline'; document.getElementById('2305.07557v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2305.07557v1-abstract-full" style="display: none;"> The critical point of dense, strongly interacting matter is searched for at the CERN SPS in ${}^{40}$Ar + ${}^{45}$Sc collisions at 150A GeV/c. The dependence of second-order scaled factorial moments of proton multiplicity distribution on the number of subdivisions of transverse momentum space is measured. The intermittency analysis is performed using both transverse momentum and cumulative transverse momentum. For the first time, statistically independent data sets are used for each subdivision number. The obtained results do not indicate any statistically significant intermittency pattern. An upper limit on the fraction of critical proton pairs and the power of the correlation function is obtained based on a comparison with the Power-law Model developed for this purpose. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2305.07557v1-abstract-full').style.display = 'none'; document.getElementById('2305.07557v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 May, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">28 pages, 14 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2023-082 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2304.03430">arXiv:2304.03430</a> <span> [<a href="https://arxiv.org/pdf/2304.03430">pdf</a>, <a href="https://arxiv.org/format/2304.03430">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Observation of the electromagnetic field effect via charge-dependent directed flow in heavy-ion collisions at the Relativistic Heavy Ion Collider </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/hep-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Aitbaev%2C+A">A. Aitbaev</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Alpatov%2C+E">E. Alpatov</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aslam%2C+S">S. Aslam</a>, <a href="/search/hep-ex?searchtype=author&query=Atchison%2C+J">J. Atchison</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/hep-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/hep-ex?searchtype=author&query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/hep-ex?searchtype=author&query=Bhosale%2C+S+R">S. R. Bhosale</a>, <a href="/search/hep-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a>, <a href="/search/hep-ex?searchtype=author&query=Brandenburg%2C+J+D">J. D. Brandenburg</a> , et al. (331 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2304.03430v2-abstract-short" style="display: inline;"> The deconfined quark-gluon plasma (QGP) created in relativistic heavy-ion collisions enables the exploration of the fundamental properties of matter under extreme conditions. Non-central collisions can produce strong magnetic fields on the order of $10^{18}$ Gauss, which offers a probe into the electrical conductivity of the QGP. In particular, quarks and anti-quarks carry opposite charges and rec… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.03430v2-abstract-full').style.display = 'inline'; document.getElementById('2304.03430v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2304.03430v2-abstract-full" style="display: none;"> The deconfined quark-gluon plasma (QGP) created in relativistic heavy-ion collisions enables the exploration of the fundamental properties of matter under extreme conditions. Non-central collisions can produce strong magnetic fields on the order of $10^{18}$ Gauss, which offers a probe into the electrical conductivity of the QGP. In particular, quarks and anti-quarks carry opposite charges and receive contrary electromagnetic forces that alter their momenta. This phenomenon can be manifested in the collective motion of final-state particles, specifically in the rapidity-odd directed flow, denoted as $v_1(\mathsf{y})$. Here we present the charge-dependent measurements of $dv_1/d\mathsf{y}$ near midrapidities for $蟺^{\pm}$, $K^{\pm}$, and $p(\bar{p})$ in Au+Au and isobar ($_{44}^{96}$Ru+$_{44}^{96}$Ru and $_{40}^{96}$Zr+$_{40}^{96}$Zr) collisions at $\sqrt{s_{\rm NN}}=$ 200 GeV, and in Au+Au collisions at 27 GeV, recorded by the STAR detector at the Relativistic Heavy Ion Collider. The combined dependence of the $v_1$ signal on collision system, particle species, and collision centrality can be qualitatively and semi-quantitatively understood as several effects on constituent quarks. While the results in central events can be explained by the $u$ and $d$ quarks transported from initial-state nuclei, those in peripheral events reveal the impacts of the electromagnetic field on the QGP. Our data put valuable constraints on the electrical conductivity of the QGP in theoretical calculations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.03430v2-abstract-full').style.display = 'none'; document.getElementById('2304.03430v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 February, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 6 April, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2302.04593">arXiv:2302.04593</a> <span> [<a href="https://arxiv.org/pdf/2302.04593">pdf</a>, <a href="https://arxiv.org/format/2302.04593">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-023-11997-8">10.1140/epjc/s10052-023-11997-8 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Two-pion femtoscopic correlations in Be+Be collisions at $\sqrt{s_{\textrm{NN}}} = 16.84$ GeV measured by the NA61/SHINE at CERN </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+N">NA61/SHINE Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Adhikary%2C+H">H. Adhikary</a>, <a href="/search/hep-ex?searchtype=author&query=Adrich%2C+P">P. Adrich</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+K+K">K. K. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Amin%2C+N">N. Amin</a>, <a href="/search/hep-ex?searchtype=author&query=Andronov%2C+E+V">E. V. Andronov</a>, <a href="/search/hep-ex?searchtype=author&query=Anti%C4%87i%C4%87%2C+T">T. Anti膰i膰</a>, <a href="/search/hep-ex?searchtype=author&query=Arsene%2C+I+-">I. -C. Arsene</a>, <a href="/search/hep-ex?searchtype=author&query=Bajda%2C+M">M. Bajda</a>, <a href="/search/hep-ex?searchtype=author&query=Balkova%2C+Y">Y. Balkova</a>, <a href="/search/hep-ex?searchtype=author&query=Baszczyk%2C+M">M. Baszczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Battaglia%2C+D">D. Battaglia</a>, <a href="/search/hep-ex?searchtype=author&query=Bazgir%2C+A">A. Bazgir</a>, <a href="/search/hep-ex?searchtype=author&query=Bhosale%2C+S">S. Bhosale</a>, <a href="/search/hep-ex?searchtype=author&query=Bielewicz%2C+M">M. Bielewicz</a>, <a href="/search/hep-ex?searchtype=author&query=Blondel%2C+A">A. Blondel</a>, <a href="/search/hep-ex?searchtype=author&query=Bogomilov%2C+M">M. Bogomilov</a>, <a href="/search/hep-ex?searchtype=author&query=Bondar%2C+Y">Y. Bondar</a>, <a href="/search/hep-ex?searchtype=author&query=Bostan%2C+N">N. Bostan</a>, <a href="/search/hep-ex?searchtype=author&query=Brandin%2C+A">A. Brandin</a>, <a href="/search/hep-ex?searchtype=author&query=Bryli%C5%84ski%2C+W">W. Bryli艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=Brzychczyk%2C+J">J. Brzychczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Buryakov%2C+M">M. Buryakov</a>, <a href="/search/hep-ex?searchtype=author&query=Camino%2C+A+F">A. F. Camino</a> , et al. (133 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2302.04593v2-abstract-short" style="display: inline;"> This paper reports measurements of two-pion Bose-Einstein (HBT) correlations in Be+Be collisions at a beam momentum of 150$A\,\mbox{GeV}/\textit{c}$ by the $\mbox{NA61/SHINE}$ experiment at the CERN SPS accelerator. The obtained momentum space correlation functions can be well described by a L茅vy distributed source model. The transverse mass dependence of the L茅vy source parameters is presented, a… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.04593v2-abstract-full').style.display = 'inline'; document.getElementById('2302.04593v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2302.04593v2-abstract-full" style="display: none;"> This paper reports measurements of two-pion Bose-Einstein (HBT) correlations in Be+Be collisions at a beam momentum of 150$A\,\mbox{GeV}/\textit{c}$ by the $\mbox{NA61/SHINE}$ experiment at the CERN SPS accelerator. The obtained momentum space correlation functions can be well described by a L茅vy distributed source model. The transverse mass dependence of the L茅vy source parameters is presented, and their possible theoretical interpretations are discussed. The results show that the L茅vy exponent $伪$ is approximately constant as a function of $m_{\rm{T}}$ , and far from both the Gaussian case of $伪= 2$ or the conjectured value at the critical endpoint, $伪= 0.5$. The radius scale parameter $R$ shows a slight decrease in $m_{\rm{T}}$, which can be explained as a signature of transverse flow. Finally, an approximately constant trend of the intercept parameter $位$ as a function of $m_{\rm{T}}$ was observed, different from measurement results at RHIC. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.04593v2-abstract-full').style.display = 'none'; document.getElementById('2302.04593v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 February, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur.Phys.J.C 83 (2023) 10, 919 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2211.00183">arXiv:2211.00183</a> <span> [<a href="https://arxiv.org/pdf/2211.00183">pdf</a>, <a href="https://arxiv.org/format/2211.00183">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Measurements of $K^0_{\textrm{S}}$, $螞$ and $\bar螞$ production in 120 GeV/$c$ p + C interactions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+N">NA61/SHINE Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Adhikary%2C+H">H. Adhikary</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+K+K">K. K. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Amin%2C+N">N. Amin</a>, <a href="/search/hep-ex?searchtype=author&query=Andronov%2C+E+V">E. V. Andronov</a>, <a href="/search/hep-ex?searchtype=author&query=Anti%C4%87i%C4%87%2C+T">T. Anti膰i膰</a>, <a href="/search/hep-ex?searchtype=author&query=Arsene%2C+I+-">I. -C. Arsene</a>, <a href="/search/hep-ex?searchtype=author&query=Balkova%2C+Y">Y. Balkova</a>, <a href="/search/hep-ex?searchtype=author&query=Baszczyk%2C+M">M. Baszczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Battaglia%2C+D">D. Battaglia</a>, <a href="/search/hep-ex?searchtype=author&query=Bhosale%2C+S">S. Bhosale</a>, <a href="/search/hep-ex?searchtype=author&query=Blondel%2C+A">A. Blondel</a>, <a href="/search/hep-ex?searchtype=author&query=Bogomilov%2C+M">M. Bogomilov</a>, <a href="/search/hep-ex?searchtype=author&query=Bondar%2C+Y">Y. Bondar</a>, <a href="/search/hep-ex?searchtype=author&query=Bostan%2C+N">N. Bostan</a>, <a href="/search/hep-ex?searchtype=author&query=Brandin%2C+A">A. Brandin</a>, <a href="/search/hep-ex?searchtype=author&query=Bravar%2C+A">A. Bravar</a>, <a href="/search/hep-ex?searchtype=author&query=Bryli%C5%84ski%2C+W">W. Bryli艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=Brzychczyk%2C+J">J. Brzychczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Buryakov%2C+M">M. Buryakov</a>, <a href="/search/hep-ex?searchtype=author&query=%C4%86irkovi%C4%87%2C+M">M. 膯irkovi膰</a>, <a href="/search/hep-ex?searchtype=author&query=Csanad%2C+M">M. Csanad</a>, <a href="/search/hep-ex?searchtype=author&query=Cybowska%2C+J">J. Cybowska</a>, <a href="/search/hep-ex?searchtype=author&query=Czopowicz%2C+T">T. Czopowicz</a> , et al. (134 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2211.00183v2-abstract-short" style="display: inline;"> This paper presents multiplicity measurements of $K^0_{\textrm{S}}$, $螞$, and $\bar螞$ produced in 120 GeV/$c$ proton-carbon interactions. The measurements were made using data collected at the NA61/SHINE experiment during two different periods. Decays of these neutral hadrons impact the measured $蟺^+$, $蟺^-$, $p$ and $\bar{p}$ multiplicities in the 120 GeV/$c$ proton-carbon reaction, which are cru… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.00183v2-abstract-full').style.display = 'inline'; document.getElementById('2211.00183v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2211.00183v2-abstract-full" style="display: none;"> This paper presents multiplicity measurements of $K^0_{\textrm{S}}$, $螞$, and $\bar螞$ produced in 120 GeV/$c$ proton-carbon interactions. The measurements were made using data collected at the NA61/SHINE experiment during two different periods. Decays of these neutral hadrons impact the measured $蟺^+$, $蟺^-$, $p$ and $\bar{p}$ multiplicities in the 120 GeV/$c$ proton-carbon reaction, which are crucial inputs for long-baseline neutrino experiment predictions of neutrino beam flux. The double-differential multiplicities presented here will be used to more precisely measure charged-hadron multiplicities in this reaction, and to re-weight neutral hadron production in neutrino beam Monte Carlo simulations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.00183v2-abstract-full').style.display = 'none'; document.getElementById('2211.00183v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 2 March, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 31 October, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2209.08058">arXiv:2209.08058</a> <span> [<a href="https://arxiv.org/pdf/2209.08058">pdf</a>, <a href="https://arxiv.org/format/2209.08058">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Theory">hep-th</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.130.202301">10.1103/PhysRevLett.130.202301 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Beam Energy Dependence of Triton Production and Yield Ratio ($\mathrm{N}_t \times \mathrm{N}_p/\mathrm{N}_d^2$) in Au+Au Collisions at RHIC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/hep-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Aitbaev%2C+A">A. Aitbaev</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aslam%2C+S">S. Aslam</a>, <a href="/search/hep-ex?searchtype=author&query=Atchison%2C+J">J. Atchison</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Baker%2C+W">W. Baker</a>, <a href="/search/hep-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/hep-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/hep-ex?searchtype=author&query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/hep-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a>, <a href="/search/hep-ex?searchtype=author&query=Brandenburg%2C+J+D">J. D. Brandenburg</a> , et al. (333 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2209.08058v2-abstract-short" style="display: inline;"> We report the triton ($t$) production in mid-rapidity ($|y| <$ 0.5) Au+Au collisions at $\sqrt{s_\mathrm{NN}}$= 7.7--200 GeV measured by the STAR experiment from the first phase of the beam energy scan at the Relativistic Heavy Ion Collider (RHIC). The nuclear compound yield ratio ($\mathrm{N}_t \times \mathrm{N}_p/\mathrm{N}_d^2$), which is predicted to be sensitive to the fluctuation of local ne… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2209.08058v2-abstract-full').style.display = 'inline'; document.getElementById('2209.08058v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2209.08058v2-abstract-full" style="display: none;"> We report the triton ($t$) production in mid-rapidity ($|y| <$ 0.5) Au+Au collisions at $\sqrt{s_\mathrm{NN}}$= 7.7--200 GeV measured by the STAR experiment from the first phase of the beam energy scan at the Relativistic Heavy Ion Collider (RHIC). The nuclear compound yield ratio ($\mathrm{N}_t \times \mathrm{N}_p/\mathrm{N}_d^2$), which is predicted to be sensitive to the fluctuation of local neutron density, is observed to decrease monotonically with increasing charged-particle multiplicity ($dN_{ch}/d畏$) and follows a scaling behavior. The $dN_{ch}/d畏$ dependence of the yield ratio is compared to calculations from coalescence and thermal models. Enhancements in the yield ratios relative to the coalescence baseline are observed in the 0\%-10\% most central collisions at 19.6 and 27 GeV, with a significance of 2.3$蟽$ and 3.4$蟽$, respectively, giving a combined significance of 4.1$蟽$. The enhancements are not observed in peripheral collisions or model calculations without critical fluctuation, and decreases with a smaller $p_{T}$ acceptance. The physics implications of these results on the QCD phase structure and the production mechanism of light nuclei in heavy-ion collisions are discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2209.08058v2-abstract-full').style.display = 'none'; document.getElementById('2209.08058v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 18 May, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 16 September, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">6 pages, 4 figures, Supplemental Material: http://link.aps.org/supplemental/10.1103/PhysRevLett.130.202301</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 130, 202301 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2208.00653">arXiv:2208.00653</a> <span> [<a href="https://arxiv.org/pdf/2208.00653">pdf</a>, <a href="https://arxiv.org/ps/2208.00653">ps</a>, <a href="https://arxiv.org/format/2208.00653">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.107.024901">10.1103/PhysRevC.107.024901 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Pion, kaon, and (anti-)proton production in U+U Collisions at $\sqrt{s_{NN}}$ = 193 GeV measured with the STAR detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abdallah%2C+M+S">M. S. Abdallah</a>, <a href="/search/hep-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Aitbaev%2C+A">A. Aitbaev</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Atchison%2C+J">J. Atchison</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Baker%2C+W">W. Baker</a>, <a href="/search/hep-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/hep-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/hep-ex?searchtype=author&query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/hep-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a>, <a href="/search/hep-ex?searchtype=author&query=Brandenburg%2C+J+D">J. D. Brandenburg</a> , et al. (330 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2208.00653v2-abstract-short" style="display: inline;"> We present the first measurements of transverse momentum spectra of $蟺^{\pm}$, $K^{\pm}$, $p(\bar{p})$ at midrapidity ($|y| < 0.1$) in U+U collisions at $\sqrt{s_{NN}}$ = 193 GeV with the STAR detector at the Relativistic Heavy Ion Collider (RHIC). The centrality dependence of particle yields, average transverse momenta, particle ratios and kinetic freeze-out parameters are discussed. The results… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2208.00653v2-abstract-full').style.display = 'inline'; document.getElementById('2208.00653v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2208.00653v2-abstract-full" style="display: none;"> We present the first measurements of transverse momentum spectra of $蟺^{\pm}$, $K^{\pm}$, $p(\bar{p})$ at midrapidity ($|y| < 0.1$) in U+U collisions at $\sqrt{s_{NN}}$ = 193 GeV with the STAR detector at the Relativistic Heavy Ion Collider (RHIC). The centrality dependence of particle yields, average transverse momenta, particle ratios and kinetic freeze-out parameters are discussed. The results are compared with the published results from Au+Au collisions at $\sqrt{s_{NN}} =$ 200 GeV in STAR. The results are also compared to those from A Multi Phase Transport (AMPT) model. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2208.00653v2-abstract-full').style.display = 'none'; document.getElementById('2208.00653v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 February, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 1 August, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">17 pages, 14 figures and 7 tables; Replaced with the updated version published in Physical Review C</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 107 (2023) 024901 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2112.09506">arXiv:2112.09506</a> <span> [<a href="https://arxiv.org/pdf/2112.09506">pdf</a>, <a href="https://arxiv.org/format/2112.09506">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-022-10281-5">10.1140/epjc/s10052-022-10281-5 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> $K^{*}(892)^0$ meson production in inelastic $p+p$ interactions at 40 and 80 GeV/$c$ beam momenta measured by NA61/SHINE at the CERN SPS </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+N">NA61/SHINE Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Acharya%2C+A">A. Acharya</a>, <a href="/search/hep-ex?searchtype=author&query=Adhikary%2C+H">H. Adhikary</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+K+K">K. K. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Amin%2C+N">N. Amin</a>, <a href="/search/hep-ex?searchtype=author&query=Andronov%2C+E+V">E. V. Andronov</a>, <a href="/search/hep-ex?searchtype=author&query=Anti%C4%87i%C4%87%2C+T">T. Anti膰i膰</a>, <a href="/search/hep-ex?searchtype=author&query=Arsene%2C+I+-">I. -C. Arsene</a>, <a href="/search/hep-ex?searchtype=author&query=Baszczyk%2C+M">M. Baszczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Battagia%2C+D">D. Battagia</a>, <a href="/search/hep-ex?searchtype=author&query=Bhosale%2C+S">S. Bhosale</a>, <a href="/search/hep-ex?searchtype=author&query=Blondel%2C+A">A. Blondel</a>, <a href="/search/hep-ex?searchtype=author&query=Bogomilov%2C+M">M. Bogomilov</a>, <a href="/search/hep-ex?searchtype=author&query=Bondar%2C+Y">Y. Bondar</a>, <a href="/search/hep-ex?searchtype=author&query=Bostan%2C+N">N. Bostan</a>, <a href="/search/hep-ex?searchtype=author&query=Brandin%2C+A">A. Brandin</a>, <a href="/search/hep-ex?searchtype=author&query=Bravar%2C+A">A. Bravar</a>, <a href="/search/hep-ex?searchtype=author&query=Bryli%C5%84ski%2C+W">W. Bryli艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=Brzychczyk%2C+J">J. Brzychczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Buryakov%2C+M">M. Buryakov</a>, <a href="/search/hep-ex?searchtype=author&query=%C4%86irkovi%C4%87%2C+M">M. 膯irkovi膰</a>, <a href="/search/hep-ex?searchtype=author&query=Csanad%2C+M">M. Csanad</a>, <a href="/search/hep-ex?searchtype=author&query=Cybowska%2C+J">J. Cybowska</a>, <a href="/search/hep-ex?searchtype=author&query=Czopowicz%2C+T">T. Czopowicz</a> , et al. (124 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2112.09506v2-abstract-short" style="display: inline;"> Measurements of $K^{*}(892)^0$ resonance production via its $K^{+}蟺^{-}$ decay mode in inelastic $p+p$ collisions at beam momenta 40 and 80 GeV/$c$ ($\sqrt{s_{NN}}=8.8$ and 12.3 GeV) are presented. The data were recorded by the NA61/SHINE hadron spectrometer at the CERN Super Proton Synchrotron. The \textit{template} method was used to extract the $K^{*}(892)^0$ signal. Transverse momentum and rap… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2112.09506v2-abstract-full').style.display = 'inline'; document.getElementById('2112.09506v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2112.09506v2-abstract-full" style="display: none;"> Measurements of $K^{*}(892)^0$ resonance production via its $K^{+}蟺^{-}$ decay mode in inelastic $p+p$ collisions at beam momenta 40 and 80 GeV/$c$ ($\sqrt{s_{NN}}=8.8$ and 12.3 GeV) are presented. The data were recorded by the NA61/SHINE hadron spectrometer at the CERN Super Proton Synchrotron. The \textit{template} method was used to extract the $K^{*}(892)^0$ signal. Transverse momentum and rapidity spectra were obtained. The mean multiplicities of $K^{*}(892)^0$ mesons were found to be $(35.1 \pm 1.3 \mathrm{(stat)} \pm 3.6 \mathrm{(sys)) \cdot 10^{-3}}$ at 40 GeV/$c$ and $(58.3 \pm 1.9 \mathrm{(stat)} \pm 4.9 \mathrm{(sys)) \cdot 10^{-3}}$ at 80 GeV/$c$. The NA61/SHINE results are compared with the EPOS1.99 and Hadron Resonance Gas models as well as with world data. The transverse mass spectra of $K^{*}(892)^0$ mesons and other particles previously reported by NA61/SHINE were fitted within the Blast-Wave model. The transverse flow velocities are close to 0.1--0.2 of the speed of light and are significantly smaller than the ones determined in heavy nucleus-nucleus interactions at the same beam momenta. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2112.09506v2-abstract-full').style.display = 'none'; document.getElementById('2112.09506v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 April, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 December, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">version published in Eur. Phys. J. C</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. C (2022) 82:322 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2111.10396">arXiv:2111.10396</a> <span> [<a href="https://arxiv.org/pdf/2111.10396">pdf</a>, <a href="https://arxiv.org/format/2111.10396">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Theory">hep-th</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.129.092501">10.1103/PhysRevLett.129.092501 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Evidence for Nonlinear Gluon Effects in QCD and their $A$ Dependence at STAR </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abdallah%2C+M+S">M. S. Abdallah</a>, <a href="/search/hep-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Aitbaev%2C+A">A. Aitbaev</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/hep-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/hep-ex?searchtype=author&query=Atetalla%2C+F+G">F. G. Atetalla</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Baker%2C+W">W. Baker</a>, <a href="/search/hep-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a> , et al. (372 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2111.10396v2-abstract-short" style="display: inline;"> The STAR Collaboration reports measurements of back-to-back azimuthal correlations of di-$蟺^0$s produced at forward pseudorapidities ($2.6<畏<4.0$) in $p$+$p$, $p+$Al, and $p+$Au collisions at a center-of-mass energy of 200 GeV. We observe a clear suppression of the correlated yields of back-to-back $蟺^0$ pairs in $p+$Al and $p+$Au collisions compared to the $p$+$p$ data. The observed suppression o… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.10396v2-abstract-full').style.display = 'inline'; document.getElementById('2111.10396v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2111.10396v2-abstract-full" style="display: none;"> The STAR Collaboration reports measurements of back-to-back azimuthal correlations of di-$蟺^0$s produced at forward pseudorapidities ($2.6<畏<4.0$) in $p$+$p$, $p+$Al, and $p+$Au collisions at a center-of-mass energy of 200 GeV. We observe a clear suppression of the correlated yields of back-to-back $蟺^0$ pairs in $p+$Al and $p+$Au collisions compared to the $p$+$p$ data. The observed suppression of back-to-back pairs as a function of transverse momentum suggests nonlinear gluon dynamics arising at high parton densities. The larger suppression found in $p+$Au relative to $p+$Al collisions exhibits a dependence of the saturation scale, $Q_s^2$, on the mass number, $A$. A linear scaling of the suppression with $A^{1/3}$ is observed with a slope of $-0.09$ $\pm$ $0.01$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.10396v2-abstract-full').style.display = 'none'; document.getElementById('2111.10396v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 August, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 19 November, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages,3 figures, 1 supplemental material</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2110.11020">arXiv:2110.11020</a> <span> [<a href="https://arxiv.org/pdf/2110.11020">pdf</a>, <a href="https://arxiv.org/format/2110.11020">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Longitudinal double-spin asymmetry for inclusive jet and dijet production in polarized proton collisions at $\sqrt{s}=510$ GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abdallah%2C+M+S">M. S. Abdallah</a>, <a href="/search/hep-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Aitbaev%2C+A">A. Aitbaev</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/hep-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/hep-ex?searchtype=author&query=Atetalla%2C+F+G">F. G. Atetalla</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Baker%2C+W">W. Baker</a>, <a href="/search/hep-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a> , et al. (372 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2110.11020v2-abstract-short" style="display: inline;"> We report measurements of the longitudinal double-spin asymmetry, $A_{LL}$, for inclusive jet and dijet production in polarized proton-proton collisions at midrapidity and center-of-mass energy $\sqrt{s}$ = 510 GeV, using the high luminosity data sample collected by the STAR experiment in 2013. These measurements complement and improve the precision of previous STAR measurements at the same center… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2110.11020v2-abstract-full').style.display = 'inline'; document.getElementById('2110.11020v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2110.11020v2-abstract-full" style="display: none;"> We report measurements of the longitudinal double-spin asymmetry, $A_{LL}$, for inclusive jet and dijet production in polarized proton-proton collisions at midrapidity and center-of-mass energy $\sqrt{s}$ = 510 GeV, using the high luminosity data sample collected by the STAR experiment in 2013. These measurements complement and improve the precision of previous STAR measurements at the same center-of-mass energy that probe the polarized gluon distribution function at partonic momentum fraction 0.015 $\lesssim x \lesssim$ 0.25. The dijet asymmetries are separated into four jet-pair topologies, which provide further constraints on the $x$ dependence of the polarized gluon distribution function. These measurements are in agreement with previous STAR measurements and with predictions from current next-to-leading order global analyses. They provide more precise data at low dijet invariant mass that will better constraint the shape of the polarized gluon distribution function of the proton. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2110.11020v2-abstract-full').style.display = 'none'; document.getElementById('2110.11020v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 May, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 October, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2021. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2109.13191">arXiv:2109.13191</a> <span> [<a href="https://arxiv.org/pdf/2109.13191">pdf</a>, <a href="https://arxiv.org/format/2109.13191">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.105.032007">10.1103/PhysRevD.105.032007 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of inclusive electrons from open heavy-flavor hadron decays in $p$+$p$ collisions at $\sqrt{s} = 200$ GeV with the STAR detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abdallah%2C+M+S">M. S. Abdallah</a>, <a href="/search/hep-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=arwal%2C+M+M+A">M. M. Agg arwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/hep-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/hep-ex?searchtype=author&query=Atetalla%2C+F+G">F. G. Atetalla</a>, <a href="/search/hep-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Baker%2C+W">W. Baker</a>, <a href="/search/hep-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a> , et al. (372 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2109.13191v2-abstract-short" style="display: inline;"> We report a new measurement of the production cross section for inclusive electrons from open heavy-flavor hadron decays as a function of transverse momentum ($p_{\rm T}$) at mid-rapidity ($|y|<$ 0.7) in $p$+$p$ collisions at $\sqrt{s} = 200$ GeV. The result is presented for 2.5 $<p_{\rm T}<$ 10 GeV/$c$ with an improved precision above 6 GeV/$c$ with respect to the previous measurements, providing… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.13191v2-abstract-full').style.display = 'inline'; document.getElementById('2109.13191v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2109.13191v2-abstract-full" style="display: none;"> We report a new measurement of the production cross section for inclusive electrons from open heavy-flavor hadron decays as a function of transverse momentum ($p_{\rm T}$) at mid-rapidity ($|y|<$ 0.7) in $p$+$p$ collisions at $\sqrt{s} = 200$ GeV. The result is presented for 2.5 $<p_{\rm T}<$ 10 GeV/$c$ with an improved precision above 6 GeV/$c$ with respect to the previous measurements, providing more constraints on perturbative QCD calculations. Moreover, this measurement also provides a high-precision reference for measurements of nuclear modification factors for inclusive electrons from open-charm and -bottom hadron decays in heavy-ion collisions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.13191v2-abstract-full').style.display = 'none'; document.getElementById('2109.13191v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 3 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 27 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 105, 032007 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2109.09793">arXiv:2109.09793</a> <span> [<a href="https://arxiv.org/pdf/2109.09793">pdf</a>, <a href="https://arxiv.org/format/2109.09793">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.105.044906">10.1103/PhysRevC.105.044906 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Differential measurements of jet substructure and partonic energy loss in Au$+$Au collisions at $\sqrt{s_{\rm{NN}}} =200$ GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abdallah%2C+M+S">M. S. Abdallah</a>, <a href="/search/hep-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/hep-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/hep-ex?searchtype=author&query=Atetalla%2C+F+G">F. G. Atetalla</a>, <a href="/search/hep-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Baker%2C+W">W. Baker</a>, <a href="/search/hep-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a> , et al. (372 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2109.09793v2-abstract-short" style="display: inline;"> The STAR collaboration presents jet substructure measurements related to both the momentum fraction and the opening angle within jets in \pp and \AuAu collisions at \sqrtsn $= 200$ GeV. The substructure observables include SoftDrop groomed momentum fraction (\zg), groomed jet radius (\rg), and subjet momentum fraction (\zsj) and opening angle (\tsj). The latter observable is introduced for the fir… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.09793v2-abstract-full').style.display = 'inline'; document.getElementById('2109.09793v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2109.09793v2-abstract-full" style="display: none;"> The STAR collaboration presents jet substructure measurements related to both the momentum fraction and the opening angle within jets in \pp and \AuAu collisions at \sqrtsn $= 200$ GeV. The substructure observables include SoftDrop groomed momentum fraction (\zg), groomed jet radius (\rg), and subjet momentum fraction (\zsj) and opening angle (\tsj). The latter observable is introduced for the first time. Fully corrected subjet measurements are presented for \pp collisions and are compared to leading order Monte Carlo models. The subjet \tsj~distributions reflect the jets leading opening angle and are utilized as a proxy for the resolution scale of the medium in \AuAu collisions. We compare data from \AuAu collisions to those from \pp which are embedded in minimum-bias \AuAu events in order to include the effects of detector smearing and the heavy-ion collision underlying event. The subjet observables are shown to be more robust to the background than \zg~and \rg. We observe no significant modifications of the subjet observables within the two highest-energy, back-to-back jets, resulting in a distribution of opening angles and the splittings that are vacuum-like. We also report measurements of the differential di-jet momentum imbalance ($A_{\rm{J}}$) for jets of varying \tsj. We find no qualitative differences in energy loss signatures for varying angular scales in the range $0.1 < $ \tsj $ < 0.3$, leading to the possible interpretation that energy loss in this population of high momentum di-jet pairs, is due to soft medium-induced gluon radiation from a single color-charge as it traverses the medium. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.09793v2-abstract-full').style.display = 'none'; document.getElementById('2109.09793v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 3 May, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 20 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">17 pages, 11 figures, 1 Appendix. Published version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 105, 044906 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2109.07625">arXiv:2109.07625</a> <span> [<a href="https://arxiv.org/pdf/2109.07625">pdf</a>, <a href="https://arxiv.org/format/2109.07625">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.128.122303">10.1103/PhysRevLett.128.122303 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Probing the gluonic structure of the deuteron with $J/蠄$ photoproduction in d+Au ultra-peripheral collisions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abdallah%2C+M+S">M. S. Abdallah</a>, <a href="/search/hep-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/hep-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/hep-ex?searchtype=author&query=Atetalla%2C+F+G">F. G. Atetalla</a>, <a href="/search/hep-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Baker%2C+W">W. Baker</a>, <a href="/search/hep-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a> , et al. (378 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2109.07625v2-abstract-short" style="display: inline;"> Understanding gluon density distributions and how they are modified in nuclei are among the most important goals in nuclear physics. In recent years, diffractive vector meson production measured in ultra-peripheral collisions (UPCs) at heavy-ion colliders has provided a new tool for probing the gluon density. In this Letter, we report the first measurement of $J/蠄$ photoproduction off the deuteron… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.07625v2-abstract-full').style.display = 'inline'; document.getElementById('2109.07625v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2109.07625v2-abstract-full" style="display: none;"> Understanding gluon density distributions and how they are modified in nuclei are among the most important goals in nuclear physics. In recent years, diffractive vector meson production measured in ultra-peripheral collisions (UPCs) at heavy-ion colliders has provided a new tool for probing the gluon density. In this Letter, we report the first measurement of $J/蠄$ photoproduction off the deuteron in UPCs at the center-of-mass energy $\sqrt{s_{_{\rm NN}}}=200~\rm GeV$ in d$+$Au collisions. The differential cross section as a function of momentum transfer $-t$ is measured. In addition, data with a neutron tagged in the deuteron-going Zero-Degree Calorimeter is investigated for the first time, which is found to be consistent with the expectation of incoherent diffractive scattering at low momentum transfer. Theoretical predictions based on the Color Glass Condensate saturation model and the gluon shadowing model are compared with the data quantitatively. A better agreement with the saturation model has been observed. With the current measurement, the results are found to be directly sensitive to the gluon density distribution of the deuteron and the deuteron breakup, which provides insights into the nuclear gluonic structure. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.07625v2-abstract-full').style.display = 'none'; document.getElementById('2109.07625v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 25 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Final published version Phys. Rev. Lett. 128, 122303</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2109.00131">arXiv:2109.00131</a> <span> [<a href="https://arxiv.org/pdf/2109.00131">pdf</a>, <a href="https://arxiv.org/format/2109.00131">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> </div> <p class="title is-5 mathjax"> Search for the Chiral Magnetic Effect with Isobar Collisions at $\sqrt{s_{NN}}$ = 200 GeV by the STAR Collaboration at RHIC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abdallah%2C+M+S">M. S. Abdallah</a>, <a href="/search/hep-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/hep-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/hep-ex?searchtype=author&query=Atetalla%2C+F+G">F. G. Atetalla</a>, <a href="/search/hep-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Baker%2C+W">W. Baker</a>, <a href="/search/hep-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a> , et al. (373 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2109.00131v1-abstract-short" style="display: inline;"> The chiral magnetic effect (CME) is predicted to occur as a consequence of a local violation of $\cal P$ and $\cal CP$ symmetries of the strong interaction amidst a strong electro-magnetic field generated in relativistic heavy-ion collisions. Experimental manifestation of the CME involves a separation of positively and negatively charged hadrons along the direction of the magnetic field. Previous… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.00131v1-abstract-full').style.display = 'inline'; document.getElementById('2109.00131v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2109.00131v1-abstract-full" style="display: none;"> The chiral magnetic effect (CME) is predicted to occur as a consequence of a local violation of $\cal P$ and $\cal CP$ symmetries of the strong interaction amidst a strong electro-magnetic field generated in relativistic heavy-ion collisions. Experimental manifestation of the CME involves a separation of positively and negatively charged hadrons along the direction of the magnetic field. Previous measurements of the CME-sensitive charge-separation observables remain inconclusive because of large background contributions. In order to better control the influence of signal and backgrounds, the STAR Collaboration performed a blind analysis of a large data sample of approximately 3.8 billion isobar collisions of $^{96}_{44}$Ru+$^{96}_{44}$Ru and $^{96}_{40}$Zr+$^{96}_{40}$Zr at $\sqrt{s_{\rm NN}}=200$ GeV. Prior to the blind analysis, the CME signatures are predefined as a significant excess of the CME-sensitive observables in Ru+Ru collisions over those in Zr+Zr collisions, owing to a larger magnetic field in the former. A precision down to 0.4% is achieved, as anticipated, in the relative magnitudes of the pertinent observables between the two isobar systems. Observed differences in the multiplicity and flow harmonics at the matching centrality indicate that the magnitude of the CME background is different between the two species. No CME signature that satisfies the predefined criteria has been observed in isobar collisions in this blind analysis. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.00131v1-abstract-full').style.display = 'none'; document.getElementById('2109.00131v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 31 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">43 pages, 27 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2108.00924">arXiv:2108.00924</a> <span> [<a href="https://arxiv.org/pdf/2108.00924">pdf</a>, <a href="https://arxiv.org/format/2108.00924">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2022.137152">10.1016/j.physletb.2022.137152 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Probing Strangeness Canonical Ensemble with $K^{-}$, $蠁(1020)$ and $螢^{-}$ Production in Au+Au Collisions at ${\sqrt{s_{\rm NN}} = \rm{3\,GeV}}$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abdallah%2C+M+S">M. S. Abdallah</a>, <a href="/search/hep-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/hep-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/hep-ex?searchtype=author&query=Atetalla%2C+F+G">F. G. Atetalla</a>, <a href="/search/hep-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Baker%2C+W">W. Baker</a>, <a href="/search/hep-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a> , et al. (374 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2108.00924v5-abstract-short" style="display: inline;"> We report the first multi-differential measurements of strange hadrons of $K^{-}$, $蠁$ and $螢^{-}$ yields as well as the ratios of $蠁/K^-$ and $蠁/螢^-$ in Au+Au collisions at ${\sqrt{s_{\rm NN}} = \rm{3\,GeV}}$ with the STAR experiment fixed target configuration at RHIC. The $蠁$ mesons and $螢^{-}$ hyperons are measured through hadronic decay channels, $蠁\rightarrow K^+K^-$ and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.00924v5-abstract-full').style.display = 'inline'; document.getElementById('2108.00924v5-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2108.00924v5-abstract-full" style="display: none;"> We report the first multi-differential measurements of strange hadrons of $K^{-}$, $蠁$ and $螢^{-}$ yields as well as the ratios of $蠁/K^-$ and $蠁/螢^-$ in Au+Au collisions at ${\sqrt{s_{\rm NN}} = \rm{3\,GeV}}$ with the STAR experiment fixed target configuration at RHIC. The $蠁$ mesons and $螢^{-}$ hyperons are measured through hadronic decay channels, $蠁\rightarrow K^+K^-$ and $螢^-\rightarrow 螞蟺^-$. Collision centrality and rapidity dependence of the transverse momentum spectra for these strange hadrons are presented. The $4蟺$ yields and ratios are compared to thermal model and hadronic transport model predictions. At this collision energy, thermal model with grand canonical ensemble (GCE) under-predicts the $蠁/K^-$ and $蠁/螢^-$ ratios while the result of canonical ensemble (CE) calculations reproduce $蠁/K^-$, with the correlation length $r_c \sim 2.7$\,fm, and $蠁/螢^-$, $r_c \sim 4.2$\,fm, for the 0-10\% central collisions. Hadronic transport models including high mass resonance decays could also describe the ratios. While thermal calculations with GCE work well for strangeness production in high energy collisions, the change to CE at $\rm{3\,GeV}$ implies a rather different medium property at high baryon density. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.00924v5-abstract-full').style.display = 'none'; document.getElementById('2108.00924v5-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 June, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">9 pages, 5 figures, 2 tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physics Letters B 831 (2022) 137152 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2108.00908">arXiv:2108.00908</a> <span> [<a href="https://arxiv.org/pdf/2108.00908">pdf</a>, <a href="https://arxiv.org/format/2108.00908">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2022.137003">10.1016/j.physletb.2022.137003 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Disappearance of partonic collectivity in $\sqrt{s_{NN}}$ = 3 GeV Au+Au collisions at RHIC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abdallah%2C+M+S">M. S. Abdallah</a>, <a href="/search/hep-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/hep-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/hep-ex?searchtype=author&query=Atetalla%2C+F+G">F. G. Atetalla</a>, <a href="/search/hep-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Baker%2C+W">W. Baker</a>, <a href="/search/hep-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a> , et al. (373 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2108.00908v3-abstract-short" style="display: inline;"> We report on the measurements of directed flow $v_1$ and elliptic flow $v_2$ for hadrons ($蟺^{\pm}$, $K^{\pm}$, $K_{S}^0$, $p$, $蠁$, $螞$ and $螢^{-}$) from Au+Au collisions at $\sqrt{s_{NN}}$ = 3\,GeV and $v_{2}$ for ($蟺^{\pm}$, $K^{\pm}$, $p$ and $\overline{p}$) at 27 and 54.4\,GeV with the STAR experiment. While at the two higher energy midcentral collisions the number-of-constituent-quark (NCQ)… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.00908v3-abstract-full').style.display = 'inline'; document.getElementById('2108.00908v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2108.00908v3-abstract-full" style="display: none;"> We report on the measurements of directed flow $v_1$ and elliptic flow $v_2$ for hadrons ($蟺^{\pm}$, $K^{\pm}$, $K_{S}^0$, $p$, $蠁$, $螞$ and $螢^{-}$) from Au+Au collisions at $\sqrt{s_{NN}}$ = 3\,GeV and $v_{2}$ for ($蟺^{\pm}$, $K^{\pm}$, $p$ and $\overline{p}$) at 27 and 54.4\,GeV with the STAR experiment. While at the two higher energy midcentral collisions the number-of-constituent-quark (NCQ) scaling holds, at 3\,GeV the $v_{2}$ at midrapidity is negative for all hadrons and the NCQ scaling is absent. In addition, the $v_1$ slopes at midrapidity for almost all observed hadrons are found to be positive, implying dominant repulsive baryonic interactions. The features of negative $v_2$ and positive $v_1$ slope at 3\,GeV can be reproduced with a baryonic mean-field in transport model calculations. These results imply that the medium in such collisions is likely characterized by baryonic interactions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.00908v3-abstract-full').style.display = 'none'; document.getElementById('2108.00908v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">8 pages, 5 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2106.09243">arXiv:2106.09243</a> <span> [<a href="https://arxiv.org/pdf/2106.09243">pdf</a>, <a href="https://arxiv.org/format/2106.09243">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.128.092301">10.1103/PhysRevLett.128.092301 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for the chiral magnetic effect via charge-dependent azimuthal correlations relative to spectator and participant planes in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abdallah%2C+M+S">M. S. Abdallah</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/hep-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/hep-ex?searchtype=author&query=Atetalla%2C+F+G">F. G. Atetalla</a>, <a href="/search/hep-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Baker%2C+W">W. Baker</a>, <a href="/search/hep-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/hep-ex?searchtype=author&query=Bhagat%2C+P">P. Bhagat</a> , et al. (365 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2106.09243v2-abstract-short" style="display: inline;"> The chiral magnetic effect (CME) refers to charge separation along a strong magnetic field due to imbalanced chirality of quarks in local parity and charge-parity violating domains in quantum chromodynamics. The experimental measurement of the charge separation is made difficult by the presence of a major background from elliptic azimuthal anisotropy. This background and the CME signal have differ… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2106.09243v2-abstract-full').style.display = 'inline'; document.getElementById('2106.09243v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2106.09243v2-abstract-full" style="display: none;"> The chiral magnetic effect (CME) refers to charge separation along a strong magnetic field due to imbalanced chirality of quarks in local parity and charge-parity violating domains in quantum chromodynamics. The experimental measurement of the charge separation is made difficult by the presence of a major background from elliptic azimuthal anisotropy. This background and the CME signal have different sensitivities to the spectator and participant planes, and could thus be determined by measurements with respect to these planes. We report such measurements in Au+Au collisions at a nucleon-nucleon center-of-mass energy of 200 GeV at the Relativistic Heavy-Ion Collider. It is found that the charge separation, with the flow background removed, is consistent with zero in peripheral (large impact parameter) collisions. Some indication of finite CME signals is seen in mid-central (intermediate impact parameter) collisions. Significant residual background effects may, however, still be present. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2106.09243v2-abstract-full').style.display = 'none'; document.getElementById('2106.09243v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 September, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 June, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">PRL published version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 128, 092301 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2106.07535">arXiv:2106.07535</a> <span> [<a href="https://arxiv.org/pdf/2106.07535">pdf</a>, <a href="https://arxiv.org/format/2106.07535">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-021-09976-y">10.1140/epjc/s10052-021-09976-y <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> $K^{0}_{S}$ meson production in inelastic $\textit{p+p}$ interactions at 158 GeV/c beam momentum measured by NA61/SHINE at the CERN SPS </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Acharya%2C+A">A. Acharya</a>, <a href="/search/hep-ex?searchtype=author&query=Adhikary%2C+H">H. Adhikary</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+K+K">K. K. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Amin%2C+N">N. Amin</a>, <a href="/search/hep-ex?searchtype=author&query=Andronov%2C+E+V">E. V. Andronov</a>, <a href="/search/hep-ex?searchtype=author&query=Anti%C4%8Di%C4%87%2C+T">T. Anti膷i膰</a>, <a href="/search/hep-ex?searchtype=author&query=Babkin%2C+V">V. Babkin</a>, <a href="/search/hep-ex?searchtype=author&query=Baszczyk%2C+M">M. Baszczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Bhosale%2C+S">S. Bhosale</a>, <a href="/search/hep-ex?searchtype=author&query=Blonde%2C+A">A. Blonde</a>, <a href="/search/hep-ex?searchtype=author&query=Bogomilov%2C+M">M. Bogomilov</a>, <a href="/search/hep-ex?searchtype=author&query=Bondar%2C+Y">Y. Bondar</a>, <a href="/search/hep-ex?searchtype=author&query=Brandin%2C+A">A. Brandin</a>, <a href="/search/hep-ex?searchtype=author&query=Bravar%2C+A">A. Bravar</a>, <a href="/search/hep-ex?searchtype=author&query=Brylinski%2C+W">W. Brylinski</a>, <a href="/search/hep-ex?searchtype=author&query=Brzychczyk%2C+J">J. Brzychczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Buryakov%2C+M">M. Buryakov</a>, <a href="/search/hep-ex?searchtype=author&query=Busygina%2C+O">O. Busygina</a>, <a href="/search/hep-ex?searchtype=author&query=Bzdak%2C+A">A. Bzdak</a>, <a href="/search/hep-ex?searchtype=author&query=Cherif%2C+H">H. Cherif</a>, <a href="/search/hep-ex?searchtype=author&query=%C4%86irkovi%C4%87%2C+M">M. 膯irkovi膰</a>, <a href="/search/hep-ex?searchtype=author&query=Csanad%2C+M">M. Csanad</a>, <a href="/search/hep-ex?searchtype=author&query=Cybowska%2C+J">J. Cybowska</a>, <a href="/search/hep-ex?searchtype=author&query=Czopowicz%2C+T">T. Czopowicz</a>, <a href="/search/hep-ex?searchtype=author&query=Damyanova%2C+A">A. Damyanova</a> , et al. (117 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2106.07535v3-abstract-short" style="display: inline;"> The production of $K^{0}_{S}$ mesons in inelastic $\textit{p+p}$ collisions at beam momentum 158 GeV/c ($\sqrt{s_{NN}}=17.3$ GeV) was measured with the NA61/SHINE spectrometer at the CERN Super Proton Synchrotron. Double-differential distributions were obtained in transverse momentum and rapidity. The mean multiplicity of $K^{0}_{S}$ was determined to be $0.162 \pm 0.001 (stat.) \pm 0.011 (sys.)$.… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2106.07535v3-abstract-full').style.display = 'inline'; document.getElementById('2106.07535v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2106.07535v3-abstract-full" style="display: none;"> The production of $K^{0}_{S}$ mesons in inelastic $\textit{p+p}$ collisions at beam momentum 158 GeV/c ($\sqrt{s_{NN}}=17.3$ GeV) was measured with the NA61/SHINE spectrometer at the CERN Super Proton Synchrotron. Double-differential distributions were obtained in transverse momentum and rapidity. The mean multiplicity of $K^{0}_{S}$ was determined to be $0.162 \pm 0.001 (stat.) \pm 0.011 (sys.)$. The results on $K^{0}_{S}$ production are compared with model predictions (EPOS 1.99, SMASH 2.0, PHSD and UrQMD 3.4 models) as well as with published world data. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2106.07535v3-abstract-full').style.display = 'none'; document.getElementById('2106.07535v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 February, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 June, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-21-282-AD-SCD </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2105.14698">arXiv:2105.14698</a> <span> [<a href="https://arxiv.org/pdf/2105.14698">pdf</a>, <a href="https://arxiv.org/format/2105.14698">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> </div> <p class="title is-5 mathjax"> Measurement of the Sixth-Order Cumulant of Net-Proton Multiplicity Distributions in Au+Au Collisions at $\sqrt{s_{\rm NN}}=$ 27, 54.4, and 200 GeV at RHIC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abdallah%2C+M+S">M. S. Abdallah</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/hep-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/hep-ex?searchtype=author&query=Atetalla%2C+F+G">F. G. Atetalla</a>, <a href="/search/hep-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Baker%2C+W">W. Baker</a>, <a href="/search/hep-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/hep-ex?searchtype=author&query=Bhagat%2C+P">P. Bhagat</a> , et al. (369 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2105.14698v2-abstract-short" style="display: inline;"> According to first principle Lattice QCD calculations, the transition from quark-gluon plasma to hadronic matter is a smooth crossover in the region $渭_{\rm B}\leq T_{c}$. In this range the ratio, $C_{6}/C_{2}$, of net-baryon distributions are predicted to be negative. In this paper, we report the first measurement of the midrapidity net-proton $C_{6}/C_{2}$ from 27, 54.4 and 200 GeV Au+Au collisi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.14698v2-abstract-full').style.display = 'inline'; document.getElementById('2105.14698v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2105.14698v2-abstract-full" style="display: none;"> According to first principle Lattice QCD calculations, the transition from quark-gluon plasma to hadronic matter is a smooth crossover in the region $渭_{\rm B}\leq T_{c}$. In this range the ratio, $C_{6}/C_{2}$, of net-baryon distributions are predicted to be negative. In this paper, we report the first measurement of the midrapidity net-proton $C_{6}/C_{2}$ from 27, 54.4 and 200 GeV Au+Au collisions at RHIC. The dependence on collision centrality and kinematic acceptance in ($p_{T}$, $y$) are analyzed. While for 27 and 54.4 GeV collisions the $C_{6}/C_{2}$ values are close to zero within uncertainties, it is observed that for 200 GeV collisions, the $C_{6}/C_{2}$ ratio becomes progressively negative from peripheral to central collisions. Transport model calculations without critical dynamics predict mostly positive values except for the most central collisions within uncertainties. These observations seem to favor a smooth crossover in the high energy nuclear collisions at top RHIC energy. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.14698v2-abstract-full').style.display = 'none'; document.getElementById('2105.14698v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 December, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 31 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">10 pages, 7 figures, 2 tables (published version)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2105.09144">arXiv:2105.09144</a> <span> [<a href="https://arxiv.org/pdf/2105.09144">pdf</a>, <a href="https://arxiv.org/format/2105.09144">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-021-09631-6">10.1140/epjc/s10052-021-09631-6 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurements of $螢\left(1530\right)^{0}$ and $\overline螢\left(1530\right)^{0}$ production in proton-proton interactions at $\sqrt{s_{NN}}$ = 17.3 GeV in the NA61/SHINE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Acharya%2C+A">A. Acharya</a>, <a href="/search/hep-ex?searchtype=author&query=Adhikary%2C+H">H. Adhikary</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+K+K">K. K. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Amin%2C+N">N. Amin</a>, <a href="/search/hep-ex?searchtype=author&query=Andronov%2C+E+V">E. V. Andronov</a>, <a href="/search/hep-ex?searchtype=author&query=Anti%C4%87i%C4%87%2C+T">T. Anti膰i膰</a>, <a href="/search/hep-ex?searchtype=author&query=Babkin%2C+V">V. Babkin</a>, <a href="/search/hep-ex?searchtype=author&query=Baszczyk%2C+Y+B+M">Y. Balkova M. Baszczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Bhosale%2C+S">S. Bhosale</a>, <a href="/search/hep-ex?searchtype=author&query=Blondel%2C+A">A. Blondel</a>, <a href="/search/hep-ex?searchtype=author&query=Bogomilov%2C+M">M. Bogomilov</a>, <a href="/search/hep-ex?searchtype=author&query=Brandin%2C+A">A. Brandin</a>, <a href="/search/hep-ex?searchtype=author&query=Bravar%2C+A">A. Bravar</a>, <a href="/search/hep-ex?searchtype=author&query=Bryli%C5%84ski%2C+W">W. Bryli艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=Brzychczyk%2C+J">J. Brzychczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Buryakov%2C+M">M. Buryakov</a>, <a href="/search/hep-ex?searchtype=author&query=Busygina%2C+O">O. Busygina</a>, <a href="/search/hep-ex?searchtype=author&query=Bzdak%2C+A">A. Bzdak</a>, <a href="/search/hep-ex?searchtype=author&query=Cherif%2C+H">H. Cherif</a>, <a href="/search/hep-ex?searchtype=author&query=%C4%86irkovi%C4%87%2C+M">M. 膯irkovi膰</a>, <a href="/search/hep-ex?searchtype=author&query=Csanad%2C+M">M. Csanad</a>, <a href="/search/hep-ex?searchtype=author&query=Cybowska%2C+J">J. Cybowska</a>, <a href="/search/hep-ex?searchtype=author&query=Czopowicz%2C+T">T. Czopowicz</a>, <a href="/search/hep-ex?searchtype=author&query=Damyanova%2C+A">A. Damyanova</a>, <a href="/search/hep-ex?searchtype=author&query=Davis%2C+N">N. Davis</a> , et al. (118 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2105.09144v4-abstract-short" style="display: inline;"> Double-differential yields of $螢\left(1530\right)^{0}$ and $\overline螢\left(1530\right)^{0}$ resonances produced in \pp interactions were measured at a laboratory beam momentum of 158~\GeVc. This measurement is the first of its kind in \pp interactions below LHC energies. It was performed at the CERN SPS by the \NASixtyOne collaboration. Double-differential distributions in rapidity and transverse… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.09144v4-abstract-full').style.display = 'inline'; document.getElementById('2105.09144v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2105.09144v4-abstract-full" style="display: none;"> Double-differential yields of $螢\left(1530\right)^{0}$ and $\overline螢\left(1530\right)^{0}$ resonances produced in \pp interactions were measured at a laboratory beam momentum of 158~\GeVc. This measurement is the first of its kind in \pp interactions below LHC energies. It was performed at the CERN SPS by the \NASixtyOne collaboration. Double-differential distributions in rapidity and transverse momentum were obtained from a sample of 26$\cdot$10$^6$ inelastic events. The spectra are extrapolated to full phase space resulting in mean multiplicity of $螢\left(1530\right)^{0}$ (6.73 $\pm$ 0.25 $\pm$ 0.67)$\times10^{-4}$ and $\overline螢\left(1530\right)^{0}$ (2.71 $\pm$ 0.18 $\pm$ 0.18)$\times10^{-4}$. The rapidity and transverse momentum spectra and mean multiplicities were compared to predictions of string-hadronic and statistical model calculations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.09144v4-abstract-full').style.display = 'none'; document.getElementById('2105.09144v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 30 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 19 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2021. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2103.13286">arXiv:2103.13286</a> <span> [<a href="https://arxiv.org/pdf/2103.13286">pdf</a>, <a href="https://arxiv.org/format/2103.13286">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.104.052007">10.1103/PhysRevD.104.052007 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Invariant Jet Mass Measurements in $pp$ Collisions at $\sqrt{s} = 200$ GeV at RHIC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abdallah%2C+M+S">M. S. Abdallah</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/hep-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/hep-ex?searchtype=author&query=Atetalla%2C+F+G">F. G. Atetalla</a>, <a href="/search/hep-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Baker%2C+W">W. Baker</a>, <a href="/search/hep-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/hep-ex?searchtype=author&query=Bhagat%2C+P">P. Bhagat</a> , et al. (365 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2103.13286v2-abstract-short" style="display: inline;"> We present the first inclusive measurements of the invariant and SoftDrop jet mass in proton-proton collisions at $\sqrt{s}=200$ GeV at STAR. The measurements are fully corrected for detector effects, and reported differentially in both the jet transverse momentum and jet radius parameter. We compare the measurements to established leading-order Monte Carlo event generators and find that STAR-tune… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2103.13286v2-abstract-full').style.display = 'inline'; document.getElementById('2103.13286v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2103.13286v2-abstract-full" style="display: none;"> We present the first inclusive measurements of the invariant and SoftDrop jet mass in proton-proton collisions at $\sqrt{s}=200$ GeV at STAR. The measurements are fully corrected for detector effects, and reported differentially in both the jet transverse momentum and jet radius parameter. We compare the measurements to established leading-order Monte Carlo event generators and find that STAR-tuned PYTHIA-6 reproduces the data, while LHC tunes of PYTHIA-8 and HERWIG-7 do not agree with the data, providing further constraints on parameter tuning. Finally, we observe that SoftDrop grooming, for which the contribution of wide-angle non-perturbative radiation is suppressed, shifts the jet mass distributions into closer agreement with the partonic jet mass as determined by both PYTHIA-8 and a next-to-leading-logarithmic accuracy perturbative QCD calculation. These measurements complement recent LHC measurements in a different kinematic region, as well as establish a baseline for future jet mass measurements in heavy-ion collisions at RHIC. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2103.13286v2-abstract-full').style.display = 'none'; document.getElementById('2103.13286v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 24 March, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 7 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 104, 052007 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2103.05571">arXiv:2103.05571</a> <span> [<a href="https://arxiv.org/pdf/2103.05571">pdf</a>, <a href="https://arxiv.org/format/2103.05571">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.103.L091103">10.1103/PhysRevD.103.L091103 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Longitudinal double-spin asymmetry for inclusive jet and dijet production in polarized proton collisions at $\sqrt{s}=200$ GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abdallah%2C+M+S">M. S. Abdallah</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/hep-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/hep-ex?searchtype=author&query=Atetalla%2C+F+G">F. G. Atetalla</a>, <a href="/search/hep-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Baker%2C+W">W. Baker</a>, <a href="/search/hep-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/hep-ex?searchtype=author&query=Bhagat%2C+P">P. Bhagat</a> , et al. (366 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2103.05571v2-abstract-short" style="display: inline;"> We report high-precision measurements of the longitudinal double-spin asymmetry, $A_{LL}$, for midrapidity inclusive jet and dijet production in polarized $pp$ collisions at a center-of-mass energy of $\sqrt{s}=200\,\mathrm{GeV}$. The new inclusive jet data are sensitive to the gluon helicity distribution, $螖g(x,Q^2)$, for gluon momentum fractions in the range from $x \simeq 0.05$ to… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2103.05571v2-abstract-full').style.display = 'inline'; document.getElementById('2103.05571v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2103.05571v2-abstract-full" style="display: none;"> We report high-precision measurements of the longitudinal double-spin asymmetry, $A_{LL}$, for midrapidity inclusive jet and dijet production in polarized $pp$ collisions at a center-of-mass energy of $\sqrt{s}=200\,\mathrm{GeV}$. The new inclusive jet data are sensitive to the gluon helicity distribution, $螖g(x,Q^2)$, for gluon momentum fractions in the range from $x \simeq 0.05$ to $x \simeq 0.5$, while the new dijet data provide further constraints on the $x$ dependence of $螖g(x,Q^2)$. The results are in good agreement with previous measurements at $\sqrt{s}=200\,\mathrm{GeV}$ and with recent theoretical evaluations of prior world data. Our new results have better precision and thus strengthen the evidence that $螖g(x,Q^2)$ is positive for $x > 0.05$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2103.05571v2-abstract-full').style.display = 'none'; document.getElementById('2103.05571v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 March, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">14 pages, 4 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 103, 091103 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2101.12413">arXiv:2101.12413</a> <span> [<a href="https://arxiv.org/pdf/2101.12413">pdf</a>, <a href="https://arxiv.org/format/2101.12413">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.104.024902">10.1103/PhysRevC.104.024902 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Cumulants and Correlation Functions of Net-proton, Proton and Antiproton Multiplicity Distributions in Au+Au Collisions at energies available at the BNL Relativistic Heavy Ion Collider </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abdallah%2C+M+S">M. S. Abdallah</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/hep-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/hep-ex?searchtype=author&query=Atetalla%2C+F+G">F. G. Atetalla</a>, <a href="/search/hep-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Baker%2C+W">W. Baker</a>, <a href="/search/hep-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/hep-ex?searchtype=author&query=Bhagat%2C+P">P. Bhagat</a> , et al. (367 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2101.12413v2-abstract-short" style="display: inline;"> We report a systematic measurement of cumulants, $C_{n}$, for net-proton, proton and antiproton multiplicity distributions, and correlation functions, $魏_n$, for proton and antiproton multiplicity distributions up to the fourth order in Au+Au collisions at $\sqrt{s_{\mathrm {NN}}}$ = 7.7, 11.5, 14.5, 19.6, 27, 39, 54.4, 62.4 and 200 GeV. The $C_{n}$ and $魏_n$ are presented as a function of collisi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2101.12413v2-abstract-full').style.display = 'inline'; document.getElementById('2101.12413v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2101.12413v2-abstract-full" style="display: none;"> We report a systematic measurement of cumulants, $C_{n}$, for net-proton, proton and antiproton multiplicity distributions, and correlation functions, $魏_n$, for proton and antiproton multiplicity distributions up to the fourth order in Au+Au collisions at $\sqrt{s_{\mathrm {NN}}}$ = 7.7, 11.5, 14.5, 19.6, 27, 39, 54.4, 62.4 and 200 GeV. The $C_{n}$ and $魏_n$ are presented as a function of collision energy, centrality and kinematic acceptance in rapidity, $y$, and transverse momentum, $p_{T}$. The data were taken during the first phase of the Beam Energy Scan (BES) program (2010 -- 2017) at the BNL Relativistic Heavy Ion Collider (RHIC) facility. The measurements are carried out at midrapidity ($|y| <$ 0.5) and transverse momentum 0.4 $<$ $p_{\rm T}$ $<$ 2.0 GeV/$c$, using the STAR detector at RHIC. We observe a non-monotonic energy dependence ($\sqrt{s_{\mathrm {NN}}}$ = 7.7 -- 62.4 GeV) of the net-proton $C_{4}$/$C_{2}$ with the significance of 3.1$蟽$ for the 0-5\% central Au+Au collisions. This is consistent with the expectations of critical fluctuations in a QCD-inspired model. Thermal and transport model calculations show a monotonic variation with $\sqrt{s_{\mathrm {NN}}}$. For the multiparticle correlation functions, we observe significant negative values for a two-particle correlation function, $魏_2$, of protons and antiprotons, which are mainly due to the effects of baryon number conservation. Furthermore, it is found that the four-particle correlation function, $魏_4$, of protons plays a role in determining the energy dependence of proton $C_4/C_1$ below 19.6 GeV, which cannot be understood by the effect of baryon number conservation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2101.12413v2-abstract-full').style.display = 'none'; document.getElementById('2101.12413v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 7 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 29 January, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">34 pages, 25 figures, 8 tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 104, 024902 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2101.11793">arXiv:2101.11793</a> <span> [<a href="https://arxiv.org/pdf/2101.11793">pdf</a>, <a href="https://arxiv.org/format/2101.11793">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.127.092301">10.1103/PhysRevLett.127.092301 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of $D_{s}^{\pm}/D^0$ enhancement in Au+Au collisions at $\sqrt{s_{_{\rm NN}}}$ = 200 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/hep-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/hep-ex?searchtype=author&query=Atetalla%2C+F+G">F. G. Atetalla</a>, <a href="/search/hep-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/hep-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/hep-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/hep-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/hep-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/hep-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a> , et al. (347 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2101.11793v4-abstract-short" style="display: inline;"> We report on the first measurement of charm-strange meson $D_s^{\pm}$ production at midrapidity in Au+Au collisions at $\sqrt{s_{_{\rm NN}}}$ = 200 GeV from the STAR experiment. The yield ratio between strange ($D_{s}^{\pm}$) and non-strange ($D^{0}$) open-charm mesons is presented and compared to model calculations. A significant enhancement, relative to a PYTHIA simulation of $p$+$p$ collisions,… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2101.11793v4-abstract-full').style.display = 'inline'; document.getElementById('2101.11793v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2101.11793v4-abstract-full" style="display: none;"> We report on the first measurement of charm-strange meson $D_s^{\pm}$ production at midrapidity in Au+Au collisions at $\sqrt{s_{_{\rm NN}}}$ = 200 GeV from the STAR experiment. The yield ratio between strange ($D_{s}^{\pm}$) and non-strange ($D^{0}$) open-charm mesons is presented and compared to model calculations. A significant enhancement, relative to a PYTHIA simulation of $p$+$p$ collisions, is observed in the $D_{s}^{\pm}/D^0$ yield ratio in Au+Au collisions over a large range of collision centralities. Model calculations incorporating abundant strange-quark production in the quark-gluon plasma (QGP) and coalescence hadronization qualitatively reproduce the data. The transverse-momentum integrated yield ratio of $D_{s}^{\pm}/D^0$ at midrapidity is consistent with a prediction from a statistical hadronization model with the parameters constrained by the yields of light and strange hadrons measured at the same collision energy. These results suggest that the coalescence of charm quarks with strange quarks in the QGP plays an important role in $D_{s}^{\pm}$ meson production in heavy-ion collisions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2101.11793v4-abstract-full').style.display = 'none'; document.getElementById('2101.11793v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 July, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 27 January, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 127, 092301 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2101.08494">arXiv:2101.08494</a> <span> [<a href="https://arxiv.org/pdf/2101.08494">pdf</a>, <a href="https://arxiv.org/format/2101.08494">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Spectra and mean multiplicities of $蟺^{-}$ in $central$ ${}^{40}$Ar+${}^{45}$Sc collisions at 13$A$, 19$A$, 30$A$, 40$A$, 75$A$ and 150$A$ GeV/$c$ beam momenta measured by the NA61/SHINE spectrometer at the CERN SPS </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=collaboration%2C+N">NA61/SHINE collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Acharya%2C+A">A. Acharya</a>, <a href="/search/hep-ex?searchtype=author&query=Adhikary%2C+H">H. Adhikary</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+K+K">K. K. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Andronov%2C+E+V">E. V. Andronov</a>, <a href="/search/hep-ex?searchtype=author&query=Anti%C4%87i%C4%87%2C+T">T. Anti膰i膰</a>, <a href="/search/hep-ex?searchtype=author&query=Babkin%2C+V">V. Babkin</a>, <a href="/search/hep-ex?searchtype=author&query=Baszczyk%2C+M">M. Baszczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Bhosale%2C+S">S. Bhosale</a>, <a href="/search/hep-ex?searchtype=author&query=Blondel%2C+A">A. Blondel</a>, <a href="/search/hep-ex?searchtype=author&query=Bogomilov%2C+M">M. Bogomilov</a>, <a href="/search/hep-ex?searchtype=author&query=Brandin%2C+A">A. Brandin</a>, <a href="/search/hep-ex?searchtype=author&query=Bravar%2C+A">A. Bravar</a>, <a href="/search/hep-ex?searchtype=author&query=Bryli%C5%84ski%2C+W">W. Bryli艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=Brzychczyk%2C+J">J. Brzychczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Buryakov%2C+M">M. Buryakov</a>, <a href="/search/hep-ex?searchtype=author&query=Busygina%2C+O">O. Busygina</a>, <a href="/search/hep-ex?searchtype=author&query=Bzdak%2C+A">A. Bzdak</a>, <a href="/search/hep-ex?searchtype=author&query=Cherif%2C+H">H. Cherif</a>, <a href="/search/hep-ex?searchtype=author&query=%C4%86irkovi%C4%87%2C+M">M. 膯irkovi膰</a>, <a href="/search/hep-ex?searchtype=author&query=Csanad%2C+M">M. Csanad</a>, <a href="/search/hep-ex?searchtype=author&query=Cybowska%2C+J">J. Cybowska</a>, <a href="/search/hep-ex?searchtype=author&query=Czopowicz%2C+T">T. Czopowicz</a>, <a href="/search/hep-ex?searchtype=author&query=Damyanova%2C+A">A. Damyanova</a> , et al. (118 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2101.08494v2-abstract-short" style="display: inline;"> The physics goal of the strong interaction program of the NA61/SHINE experiment at the CERN Super Proton Synchrotron (SPS) is to study the phase diagram of hadronic matter by a scan of particle production in collisions of nuclei with various sizes at a set of energies covering the SPS energy range. This paper presents differential inclusive spectra of transverse momentum, transverse mass and rapid… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2101.08494v2-abstract-full').style.display = 'inline'; document.getElementById('2101.08494v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2101.08494v2-abstract-full" style="display: none;"> The physics goal of the strong interaction program of the NA61/SHINE experiment at the CERN Super Proton Synchrotron (SPS) is to study the phase diagram of hadronic matter by a scan of particle production in collisions of nuclei with various sizes at a set of energies covering the SPS energy range. This paper presents differential inclusive spectra of transverse momentum, transverse mass and rapidity of $蟺^{-}$ mesons produced in $central$ ${}^{40}$Ar+${}^{45}$Sc collisions at beam momenta of 13$A$, 19$A$, 30$A$, 40$A$, 75$A$ and 150$A$ GeV/$c$. Energy and system size dependence of parameters of these distributions -- mean transverse mass, the inverse slope parameter of transverse mass spectra, width of the rapidity distribution and mean multiplicity -- are presented and discussed. Furthermore, the dependence of the ratio of the mean number of produced pions to the mean number of wounded nucleons on the collision energy was derived. The results are compared to predictions of several models. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2101.08494v2-abstract-full').style.display = 'none'; document.getElementById('2101.08494v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 25 January, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 January, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">40 pages, 24 figures. arXiv admin note: text overlap with arXiv:2008.06277; added the NA61/SHINE collaboration to authors and missing grant number</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2021-010 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2012.11428">arXiv:2012.11428</a> <span> [<a href="https://arxiv.org/pdf/2012.11428">pdf</a>, <a href="https://arxiv.org/format/2012.11428">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.103.092009">10.1103/PhysRevD.103.092009 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of transverse single-spin asymmetries of $蟺^0$ and electromagnetic jets at forward rapidity in 200 and 500 GeV transversely polarized proton-proton collisions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/hep-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/hep-ex?searchtype=author&query=Atetalla%2C+F+G">F. G. Atetalla</a>, <a href="/search/hep-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/hep-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/hep-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/hep-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/hep-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/hep-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a> , et al. (348 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2012.11428v4-abstract-short" style="display: inline;"> The STAR Collaboration reports measurements of the transverse single-spin asymmetry (TSSA) of inclusive $蟺^0$ at center-of-mass energies ($\sqrt s$) of 200 GeV and 500 GeV in transversely polarized proton-proton collisions in the pseudo-rapidity region 2.7 to 4.0. The results at the two different energies show a continuous increase of the TSSA with Feynman-$x$, and, when compared to previous measu… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2012.11428v4-abstract-full').style.display = 'inline'; document.getElementById('2012.11428v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2012.11428v4-abstract-full" style="display: none;"> The STAR Collaboration reports measurements of the transverse single-spin asymmetry (TSSA) of inclusive $蟺^0$ at center-of-mass energies ($\sqrt s$) of 200 GeV and 500 GeV in transversely polarized proton-proton collisions in the pseudo-rapidity region 2.7 to 4.0. The results at the two different energies show a continuous increase of the TSSA with Feynman-$x$, and, when compared to previous measurements, no dependence on $\sqrt s$ from 19.4 GeV to 500 GeV is found. To investigate the underlying physics leading to this large TSSA, different topologies have been studied. $蟺^0$ with no nearby particles tend to have a higher TSSA than inclusive $蟺^0$. The TSSA for inclusive electromagnetic jets, sensitive to the Sivers effect in the initial state, is substantially smaller, but shows the same behavior as the inclusive $蟺^0$ asymmetry as a function of Feynman-$x$. To investigate final-state effects, the Collins asymmetry of $蟺^0$ inside electromagnetic jets has been measured. The Collins asymmetry is analyzed for its dependence on the $蟺^0$ momentum transverse to the jet thrust axis and its dependence on the fraction of jet energy carried by the $蟺^0$. The asymmetry was found to be small in each case for both center-of-mass energies. All the measurements are compared to QCD-based theoretical calculations for transverse-momentum-dependent parton distribution functions and fragmentation functions. Some discrepancies are found, which indicates new mechanisms might be involved. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2012.11428v4-abstract-full').style.display = 'none'; document.getElementById('2012.11428v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 December, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">after replying to referee's comments. minor changes</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 103, 092009 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2012.07146">arXiv:2012.07146</a> <span> [<a href="https://arxiv.org/pdf/2012.07146">pdf</a>, <a href="https://arxiv.org/format/2012.07146">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.103.072005">10.1103/PhysRevD.103.072005 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Comparison of transverse single-spin asymmetries for forward $蟺^{0}$ production in polarized $pp$, $p\rm{Al}$ and $p\rm{Au}$ collisions at nucleon pair c.m. energy $\sqrt{s_{\mathrm{NN}}}= 200$ GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/hep-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/hep-ex?searchtype=author&query=Atetalla%2C+F+G">F. G. Atetalla</a>, <a href="/search/hep-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/hep-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/hep-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/hep-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/hep-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/hep-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a> , et al. (347 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2012.07146v3-abstract-short" style="display: inline;"> The STAR Collaboration reports a measurement of the transverse single-spin asymmetries, $A_{N}$, for neutral pions produced in polarized proton collisions with protons ($pp$), with aluminum nuclei ($p\rm{Al}$) and with gold nuclei ($p\rm{Au}$) at a nucleon-nucleon center-of-mass energy of 200 GeV. Neutral pions are observed in the forward direction relative to the transversely polarized proton bea… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2012.07146v3-abstract-full').style.display = 'inline'; document.getElementById('2012.07146v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2012.07146v3-abstract-full" style="display: none;"> The STAR Collaboration reports a measurement of the transverse single-spin asymmetries, $A_{N}$, for neutral pions produced in polarized proton collisions with protons ($pp$), with aluminum nuclei ($p\rm{Al}$) and with gold nuclei ($p\rm{Au}$) at a nucleon-nucleon center-of-mass energy of 200 GeV. Neutral pions are observed in the forward direction relative to the transversely polarized proton beam, in the pseudo-rapidity region $2.7<畏<3.8$. Results are presented for $蟺^0$s observed in the STAR FMS electromagnetic calorimeter in narrow Feynman x ($x_F$) and transverse momentum ($p_T$) bins, spanning the range $0.17<x_F<0.81$ and $1.7<p_{T}<6.0$ GeV/$c$. For fixed $x_F<0.47$, the asymmetries are found to rise with increasing transverse momentum. For larger $x_F$, the asymmetry flattens or falls as ${p_T}$ increases. Parametrizing the ratio $r(A) \equiv A_N(pA)/A_N(pp)=A^P$ over the kinematic range, the ratio $r(A)$ is found to depend only weakly on $A$, with ${\langle}P{\rangle} = -0.027 \pm 0.005$. No significant difference in $P$ is observed between the low-$p_T$ region, $p_T<2.5$ GeV/$c$, where gluon saturation effects may play a role, and the high-$p_T$ region, $p_T>2.5$ GeV/$c$. It is further observed that the value of $A_N$ is significantly larger for events with a large-$p_T$ isolated $蟺^0$ than for events with a non-isolated $蟺^0$ accompanied by additional jet-like fragments. The nuclear dependence $r(A)$ is similar for isolated and non-isolated $蟺^0$ events. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2012.07146v3-abstract-full').style.display = 'none'; document.getElementById('2012.07146v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 February, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 13 December, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 103, 072005 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2011.04708">arXiv:2011.04708</a> <span> [<a href="https://arxiv.org/pdf/2011.04708">pdf</a>, <a href="https://arxiv.org/ps/2011.04708">ps</a>, <a href="https://arxiv.org/format/2011.04708">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.103.012001">10.1103/PhysRevD.103.012001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurements of $W$ and $Z/纬^*$ cross sections and their ratios in $p+p$ collisions at RHIC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/hep-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/hep-ex?searchtype=author&query=Atetalla%2C+F+G">F. G. Atetalla</a>, <a href="/search/hep-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/hep-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/hep-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/hep-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/hep-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/hep-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a> , et al. (345 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2011.04708v2-abstract-short" style="display: inline;"> We report on the $W$ and $Z/纬^*$ differential and total cross sections as well as the $W^+$/$W^-$ and $(W^+ + W^-)$/$(Z/纬^*)$ cross-section ratios measured by the STAR experiment at RHIC in $p+p$ collisions at $\sqrt{s} = 500$ GeV and $510$ GeV. The cross sections and their ratios are sensitive to quark and antiquark parton distribution functions. In particular, at leading order, the $W$ cross-sec… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.04708v2-abstract-full').style.display = 'inline'; document.getElementById('2011.04708v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2011.04708v2-abstract-full" style="display: none;"> We report on the $W$ and $Z/纬^*$ differential and total cross sections as well as the $W^+$/$W^-$ and $(W^+ + W^-)$/$(Z/纬^*)$ cross-section ratios measured by the STAR experiment at RHIC in $p+p$ collisions at $\sqrt{s} = 500$ GeV and $510$ GeV. The cross sections and their ratios are sensitive to quark and antiquark parton distribution functions. In particular, at leading order, the $W$ cross-section ratio is sensitive to the $\bar{d}/\bar{u}$ ratio. These measurements were taken at high $Q^2 \sim M_W^2,M_Z^2$ and can serve as input into global analyses to provide constraints on the sea quark distributions. The results presented here combine three STAR data sets from 2011, 2012, and 2013, accumulating an integrated luminosity of 350 pb$^{-1}$. We also assess the expected impact that our $W^+/W^-$ cross-section ratios will have on various quark distributions, and find sensitivity to the $\bar{u}-\bar{d}$ and $\bar{d}/\bar{u}$ distributions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.04708v2-abstract-full').style.display = 'none'; document.getElementById('2011.04708v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 December, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 November, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Accepted to PRD 39 pages, 15 Figs., and 9 tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 103, 012001 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2010.11819">arXiv:2010.11819</a> <span> [<a href="https://arxiv.org/pdf/2010.11819">pdf</a>, <a href="https://arxiv.org/format/2010.11819">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.103.012006">10.1103/PhysRevD.103.012006 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the production cross section of 31 GeV/$c$ protons on carbon via beam attenuation in a 90-cm-long target </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+N">NA61/SHINE Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Acharya%2C+A">A. Acharya</a>, <a href="/search/hep-ex?searchtype=author&query=Adhikary%2C+H">H. Adhikary</a>, <a href="/search/hep-ex?searchtype=author&query=Aduszkiewicz%2C+A">A. Aduszkiewicz</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+K+K">K. K. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Andronov%2C+E+V">E. V. Andronov</a>, <a href="/search/hep-ex?searchtype=author&query=Anti%C4%87i%C4%87%2C+T">T. Anti膰i膰</a>, <a href="/search/hep-ex?searchtype=author&query=Babkin%2C+V">V. Babkin</a>, <a href="/search/hep-ex?searchtype=author&query=Baszczyk%2C+M">M. Baszczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Bhosale%2C+S">S. Bhosale</a>, <a href="/search/hep-ex?searchtype=author&query=Blondel%2C+A">A. Blondel</a>, <a href="/search/hep-ex?searchtype=author&query=Bogomilov%2C+M">M. Bogomilov</a>, <a href="/search/hep-ex?searchtype=author&query=Brandin%2C+A">A. Brandin</a>, <a href="/search/hep-ex?searchtype=author&query=Bravar%2C+A">A. Bravar</a>, <a href="/search/hep-ex?searchtype=author&query=Bryli%C5%84ski%2C+W">W. Bryli艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=Brzychczyk%2C+J">J. Brzychczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Buryakov%2C+M">M. Buryakov</a>, <a href="/search/hep-ex?searchtype=author&query=Busygina%2C+O">O. Busygina</a>, <a href="/search/hep-ex?searchtype=author&query=Bzdak%2C+A">A. Bzdak</a>, <a href="/search/hep-ex?searchtype=author&query=Cherif%2C+H">H. Cherif</a>, <a href="/search/hep-ex?searchtype=author&query=%C4%86irkovi%C4%87%2C+M">M. 膯irkovi膰</a>, <a href="/search/hep-ex?searchtype=author&query=Csanad%2C+M">M. Csanad</a>, <a href="/search/hep-ex?searchtype=author&query=Cybowska%2C+J">J. Cybowska</a>, <a href="/search/hep-ex?searchtype=author&query=Czopowicz%2C+T">T. Czopowicz</a> , et al. (119 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2010.11819v2-abstract-short" style="display: inline;"> The production cross section of 30.92 GeV/$c$ protons on carbon is measured by the NA61/SHINE spectrometer at the CERN SPS by means of beam attenuation in a copy (replica) of the 90-cm-long target of the T2K neutrino oscillation experiment. The employed method for direct production cross-section estimation minimizes model corrections for elastic and quasi-elastic interactions. The obtained product… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2010.11819v2-abstract-full').style.display = 'inline'; document.getElementById('2010.11819v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2010.11819v2-abstract-full" style="display: none;"> The production cross section of 30.92 GeV/$c$ protons on carbon is measured by the NA61/SHINE spectrometer at the CERN SPS by means of beam attenuation in a copy (replica) of the 90-cm-long target of the T2K neutrino oscillation experiment. The employed method for direct production cross-section estimation minimizes model corrections for elastic and quasi-elastic interactions. The obtained production cross section is $蟽_\mathrm{prod}~=~227.6~\pm~0.8\mathrm{(stat)}~_{-~3.2}^{+~1.9}\mathrm{(sys)}~{-~0.8}\mathrm{(mod)}$ mb. It is in agreement with previous NA61/SHINE results obtained with a thin carbon target, while providing improved precision with a total fractional uncertainty of less than 2$\%$. This direct measurement is performed to reduce the uncertainty on the T2K neutrino flux prediction associated with the re-weighting of the interaction rate of neutrino-yielding hadrons. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2010.11819v2-abstract-full').style.display = 'none'; document.getElementById('2010.11819v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 February, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 October, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">20 pages, 10 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2020-198 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 103, 012006 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2010.01864">arXiv:2010.01864</a> <span> [<a href="https://arxiv.org/pdf/2010.01864">pdf</a>, <a href="https://arxiv.org/format/2010.01864">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-020-08733-x">10.1140/epjc/s10052-020-08733-x <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurements of $蟺^\pm$, $K^\pm$, $p$ and $\bar{p}$ spectra in $^7$Be+$^9$Be collisions at beam momenta from 19$A$ to 150$A$ GeV/$c$ with the NA61/SHINE spectrometer at the CERN SPS </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+N">NA61/SHINE Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Acharya%2C+A">A. Acharya</a>, <a href="/search/hep-ex?searchtype=author&query=Adhikary%2C+H">H. Adhikary</a>, <a href="/search/hep-ex?searchtype=author&query=Aduszkiewicz%2C+A">A. Aduszkiewicz</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+K+K">K. K. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Andronov%2C+E+V">E. V. Andronov</a>, <a href="/search/hep-ex?searchtype=author&query=Anti%C4%87i%C4%87%2C+T">T. Anti膰i膰</a>, <a href="/search/hep-ex?searchtype=author&query=Babkin%2C+V">V. Babkin</a>, <a href="/search/hep-ex?searchtype=author&query=Baszczyk%2C+M">M. Baszczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Bhosale%2C+S">S. Bhosale</a>, <a href="/search/hep-ex?searchtype=author&query=Blondel%2C+A">A. Blondel</a>, <a href="/search/hep-ex?searchtype=author&query=Bogomilov%2C+M">M. Bogomilov</a>, <a href="/search/hep-ex?searchtype=author&query=Brandin%2C+A">A. Brandin</a>, <a href="/search/hep-ex?searchtype=author&query=Bravar%2C+A">A. Bravar</a>, <a href="/search/hep-ex?searchtype=author&query=Bryli%C5%84ski%2C+W">W. Bryli艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=Brzychczyk%2C+J">J. Brzychczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Buryakov%2C+M">M. Buryakov</a>, <a href="/search/hep-ex?searchtype=author&query=Busygina%2C+O">O. Busygina</a>, <a href="/search/hep-ex?searchtype=author&query=Bzdak%2C+A">A. Bzdak</a>, <a href="/search/hep-ex?searchtype=author&query=Cherif%2C+H">H. Cherif</a>, <a href="/search/hep-ex?searchtype=author&query=%C4%86irkovi%C4%87%2C+M">M. 膯irkovi膰</a>, <a href="/search/hep-ex?searchtype=author&query=Csanad%2C+M">M. Csanad</a>, <a href="/search/hep-ex?searchtype=author&query=Cybowska%2C+J">J. Cybowska</a>, <a href="/search/hep-ex?searchtype=author&query=Czopowicz%2C+T">T. Czopowicz</a> , et al. (119 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2010.01864v3-abstract-short" style="display: inline;"> The NA61/SHINE experiment at the CERN Super Proton Synchrotron (SPS) studies the onset of deconfinement in hadron matter by a scan of particle production in collisions of nuclei with various sizes at a set of energies covering the SPS energy range. This paper presents results on inclusive double-differential spectra, transverse momentum and rapidity distributions and mean multiplicities of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2010.01864v3-abstract-full').style.display = 'inline'; document.getElementById('2010.01864v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2010.01864v3-abstract-full" style="display: none;"> The NA61/SHINE experiment at the CERN Super Proton Synchrotron (SPS) studies the onset of deconfinement in hadron matter by a scan of particle production in collisions of nuclei with various sizes at a set of energies covering the SPS energy range. This paper presents results on inclusive double-differential spectra, transverse momentum and rapidity distributions and mean multiplicities of $蟺^\pm$, $K^\pm$, $p$ and $\bar{p}$ produced in the 20$\%$ most $central$ $^7$Be+$^9$Be collisions at beam momenta of 19$A$, 30$A$, 40$A$, 75$A$ and 150$A$ GeV/$c$. The energy dependence of the $K^\pm$/$蟺^\pm$ ratios as well as of inverse slope parameters of the $K^\pm$ transverse mass distributions are close to those found in inelastic $p$+$p$ reactions. The new results are compared to the world data on $p$+$p$ and Pb+Pb collisions as well as to predictions of the EPOS, UrQMD, AMPT, PHSD and SMASH models. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2010.01864v3-abstract-full').style.display = 'none'; document.getElementById('2010.01864v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 7 January, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 October, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">52 pages, 38 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2020-187 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur.Phys.J.C 81 (2021) 1, 73 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2009.01943">arXiv:2009.01943</a> <span> [<a href="https://arxiv.org/pdf/2009.01943">pdf</a>, <a href="https://arxiv.org/format/2009.01943">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-021-09107-7">10.1140/epjc/s10052-021-09107-7 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurements of multiplicity fluctuations of identified hadrons in inelastic proton-proton interactions at the CERN Super Proton Synchrotron </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+N">NA61/SHINE Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Acharya%2C+A">A. Acharya</a>, <a href="/search/hep-ex?searchtype=author&query=Adhikary%2C+H">H. Adhikary</a>, <a href="/search/hep-ex?searchtype=author&query=Aduszkiewicz%2C+A">A. Aduszkiewicz</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+K+K">K. K. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Andronov%2C+E+V">E. V. Andronov</a>, <a href="/search/hep-ex?searchtype=author&query=Anti%C4%87i%C4%87%2C+T">T. Anti膰i膰</a>, <a href="/search/hep-ex?searchtype=author&query=Babkin%2C+V">V. Babkin</a>, <a href="/search/hep-ex?searchtype=author&query=Baszczyk%2C+M">M. Baszczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Bhosale%2C+S">S. Bhosale</a>, <a href="/search/hep-ex?searchtype=author&query=Blondel%2C+A">A. Blondel</a>, <a href="/search/hep-ex?searchtype=author&query=Bogomilov%2C+M">M. Bogomilov</a>, <a href="/search/hep-ex?searchtype=author&query=Brandin%2C+A">A. Brandin</a>, <a href="/search/hep-ex?searchtype=author&query=Bravar%2C+A">A. Bravar</a>, <a href="/search/hep-ex?searchtype=author&query=Bryli%C5%84ski%2C+W">W. Bryli艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=Brzychczyk%2C+J">J. Brzychczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Buryakov%2C+M">M. Buryakov</a>, <a href="/search/hep-ex?searchtype=author&query=Busygina%2C+O">O. Busygina</a>, <a href="/search/hep-ex?searchtype=author&query=Bzdak%2C+A">A. Bzdak</a>, <a href="/search/hep-ex?searchtype=author&query=Cherif%2C+H">H. Cherif</a>, <a href="/search/hep-ex?searchtype=author&query=%C4%86irkovi%C4%87%2C+M">M. 膯irkovi膰</a>, <a href="/search/hep-ex?searchtype=author&query=Csanad%2C+M">M. Csanad</a>, <a href="/search/hep-ex?searchtype=author&query=Cybowska%2C+J">J. Cybowska</a>, <a href="/search/hep-ex?searchtype=author&query=Czopowicz%2C+T">T. Czopowicz</a> , et al. (118 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2009.01943v2-abstract-short" style="display: inline;"> Measurements of multiplicity fluctuations of identified hadrons produced in inelastic p+p interactions at 31, 40, 80, and 158~\GeVc beam momentum are presented. Three different measures of multiplicity fluctuations are used: the scaled variance $蠅$ and strongly intensive measures $危$ and $螖$. These fluctuation measures involve second and first moments of joint multiplicity distributions. Data anal… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2009.01943v2-abstract-full').style.display = 'inline'; document.getElementById('2009.01943v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2009.01943v2-abstract-full" style="display: none;"> Measurements of multiplicity fluctuations of identified hadrons produced in inelastic p+p interactions at 31, 40, 80, and 158~\GeVc beam momentum are presented. Three different measures of multiplicity fluctuations are used: the scaled variance $蠅$ and strongly intensive measures $危$ and $螖$. These fluctuation measures involve second and first moments of joint multiplicity distributions. Data analysis is performed using the Identity method which corrects for incomplete particle identification. Strongly intensive quantities are calculated in order to allow for a direct comparison to corresponding results on nucleus-nucleus collisions. The results for different hadron types are shown as a function of collision energy. A comparison with predictions of string-resonance Monte-Carlo models: Epos, Smash and Venus, is also presented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2009.01943v2-abstract-full').style.display = 'none'; document.getElementById('2009.01943v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 June, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 3 September, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">32 pages, 14 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2020-142 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. C 81, 384 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2008.06277">arXiv:2008.06277</a> <span> [<a href="https://arxiv.org/pdf/2008.06277">pdf</a>, <a href="https://arxiv.org/format/2008.06277">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-020-08514-6">10.1140/epjc/s10052-020-08514-6 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurements of $蟺^-$ production in $^7$Be+$^9$Be collisions at beam momenta from 19$A$ to 150$A$GeV/$c$ in the NA61/SHINE experiment at the CERN SPS </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+N">NA61/SHINE Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Acharya%2C+A">A. Acharya</a>, <a href="/search/hep-ex?searchtype=author&query=Adhikary%2C+H">H. Adhikary</a>, <a href="/search/hep-ex?searchtype=author&query=Aduszkiewicz%2C+A">A. Aduszkiewicz</a>, <a href="/search/hep-ex?searchtype=author&query=Allison%2C+K+K">K. K. Allison</a>, <a href="/search/hep-ex?searchtype=author&query=Andronov%2C+E+V">E. V. Andronov</a>, <a href="/search/hep-ex?searchtype=author&query=Anti%C4%87i%C4%87%2C+T">T. Anti膰i膰</a>, <a href="/search/hep-ex?searchtype=author&query=Babkin%2C+V">V. Babkin</a>, <a href="/search/hep-ex?searchtype=author&query=Baszczyk%2C+M">M. Baszczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Bhosale%2C+S">S. Bhosale</a>, <a href="/search/hep-ex?searchtype=author&query=Blondel%2C+A">A. Blondel</a>, <a href="/search/hep-ex?searchtype=author&query=Bogomilov%2C+M">M. Bogomilov</a>, <a href="/search/hep-ex?searchtype=author&query=Brandin%2C+A">A. Brandin</a>, <a href="/search/hep-ex?searchtype=author&query=Bravar%2C+A">A. Bravar</a>, <a href="/search/hep-ex?searchtype=author&query=Bryli%C5%84ski%2C+W">W. Bryli艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=Brzychczyk%2C+J">J. Brzychczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Buryakov%2C+M">M. Buryakov</a>, <a href="/search/hep-ex?searchtype=author&query=Busygina%2C+O">O. Busygina</a>, <a href="/search/hep-ex?searchtype=author&query=Bzdak%2C+A">A. Bzdak</a>, <a href="/search/hep-ex?searchtype=author&query=Cherif%2C+H">H. Cherif</a>, <a href="/search/hep-ex?searchtype=author&query=%C4%86irkovi%C4%87%2C+M">M. 膯irkovi膰</a>, <a href="/search/hep-ex?searchtype=author&query=Csanad%2C+M">M. Csanad</a>, <a href="/search/hep-ex?searchtype=author&query=Cybowska%2C+J">J. Cybowska</a>, <a href="/search/hep-ex?searchtype=author&query=Czopowicz%2C+T">T. Czopowicz</a> , et al. (118 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2008.06277v3-abstract-short" style="display: inline;"> The NA61/SHINE collaboration studies at the CERN Super Proton Synchrotron (SPS) the onset of deconfinement in hadronic matter by the measurement of particle production in collisions of nuclei with various sizes at a set of energies covering the SPS energy range. This paper presents results on inclusive double-differential spectra and mean multiplicities of $蟺^{-}$ mesons produced in the 5\% most \… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2008.06277v3-abstract-full').style.display = 'inline'; document.getElementById('2008.06277v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2008.06277v3-abstract-full" style="display: none;"> The NA61/SHINE collaboration studies at the CERN Super Proton Synchrotron (SPS) the onset of deconfinement in hadronic matter by the measurement of particle production in collisions of nuclei with various sizes at a set of energies covering the SPS energy range. This paper presents results on inclusive double-differential spectra and mean multiplicities of $蟺^{-}$ mesons produced in the 5\% most \textit{central} $^7$Be+$^9$Be collisions at beam momenta of 19$A$, 30$A$, 40$A$, 75$A$ and 150$A$ GeV/$c$ obtained by the so-called $h^-$ method which does not require any particle identification. The shape of the transverse mass spectra differs from the shapes measured in central Pb+Pb collisions and inelastic p+p interactions. The normalized width of the rapidity distribution decreases with increasing collision energy and is in between the results for inelastic nucleon-nucleon and central Pb+Pb collisions. The mean multiplicity of pions per wounded nucleon in \textit{central} $^7$Be+$^9$Be collisions is close to that in central Pb+Pb collisions up to 75$A$GeV/$c$. However, at the top SPS energy the result is close to the one for inelastic nucleon-nucleon interactions. The results are discussed in the context of predictions for the onset of deconfinement at the CERN SPS collision energies. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2008.06277v3-abstract-full').style.display = 'none'; document.getElementById('2008.06277v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 January, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 August, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2020. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2007.04732">arXiv:2007.04732</a> <span> [<a href="https://arxiv.org/pdf/2007.04732">pdf</a>, <a href="https://arxiv.org/format/2007.04732">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.102.092009">10.1103/PhysRevD.102.092009 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of inclusive J/$蠄$ polarization in p+p collisions at $\sqrt{s}$ = 200 GeV by the STAR experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/hep-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/hep-ex?searchtype=author&query=Atetalla%2C+F+G">F. G. Atetalla</a>, <a href="/search/hep-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/hep-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/hep-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/hep-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/hep-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/hep-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a> , et al. (340 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2007.04732v2-abstract-short" style="display: inline;"> We report on new measurements of inclusive J/$蠄$ polarization at mid-rapidity in p+p collisions at $\sqrt{s}$ = 200 GeV by the STAR experiment at RHIC. The polarization parameters, $位_胃$, $位_蠁$, and $位_{胃蠁}$, are measured as a function of transverse momentum ($p_T$) in both the Helicity and Collins-Soper (CS) reference frames within $p_T< 10$ GeV/$C$. Except for $位_胃$ in the CS frame at the highes… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2007.04732v2-abstract-full').style.display = 'inline'; document.getElementById('2007.04732v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2007.04732v2-abstract-full" style="display: none;"> We report on new measurements of inclusive J/$蠄$ polarization at mid-rapidity in p+p collisions at $\sqrt{s}$ = 200 GeV by the STAR experiment at RHIC. The polarization parameters, $位_胃$, $位_蠁$, and $位_{胃蠁}$, are measured as a function of transverse momentum ($p_T$) in both the Helicity and Collins-Soper (CS) reference frames within $p_T< 10$ GeV/$C$. Except for $位_胃$ in the CS frame at the highest measured $p_T$, all three polarization parameters are consistent with 0 in both reference frames without any strong $p_T$ dependence. Several model calculations are compared with data, and the one using the Color Glass Condensate effective field theory coupled with non-relativistic QCD gives the best overall description of the experimental results, even though other models cannot be ruled out due to experimental uncertainties. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2007.04732v2-abstract-full').style.display = 'none'; document.getElementById('2007.04732v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 25 November, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 July, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">14 pages, 11 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 102, 092009 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2006.05035">arXiv:2006.05035</a> <span> [<a href="https://arxiv.org/pdf/2006.05035">pdf</a>, <a href="https://arxiv.org/format/2006.05035">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.106.034908">10.1103/PhysRevC.106.034908 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Pair invariant mass to isolate background in the search for the chiral magnetic effect in Au+Au collisions at $\sqrt{s_{_{\rm NN}}}$= 200 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/hep-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/hep-ex?searchtype=author&query=Atetalla%2C+F+G">F. G. Atetalla</a>, <a href="/search/hep-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/hep-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/hep-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/hep-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/hep-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/hep-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a> , et al. (340 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2006.05035v2-abstract-short" style="display: inline;"> Quark interactions with topological gluon configurations can induce local chirality imbalance and parity violation in quantum chromodynamics, which can lead to the chiral magnetic effect (CME) -- an electric charge separation along the strong magnetic field in relativistic heavy-ion collisions. The CME-sensitive azimuthal correlator observable ($螖纬$) is contaminated by background arising, in part,… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.05035v2-abstract-full').style.display = 'inline'; document.getElementById('2006.05035v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2006.05035v2-abstract-full" style="display: none;"> Quark interactions with topological gluon configurations can induce local chirality imbalance and parity violation in quantum chromodynamics, which can lead to the chiral magnetic effect (CME) -- an electric charge separation along the strong magnetic field in relativistic heavy-ion collisions. The CME-sensitive azimuthal correlator observable ($螖纬$) is contaminated by background arising, in part, from resonance decays coupled with elliptic anisotropy ($v_{2}$). We report here differential measurements of the correlator as a function of the pair invariant mass ($m_{\rm inv}$) in 20-50\% centrality Au+Au collisions at $\sqrt{s_{_{\rm NN}}}$= 200 GeV by the STAR experiment at RHIC. Strong resonance background contributions to $螖纬$ are observed. At large $m_{\rm inv}$ where this background is significantly reduced, the $螖纬$ value is found to be significantly smaller. An event-shape-engineering technique is deployed to determine the $v_{2}$ background shape as a function of $m_{\rm inv}$. We extract a $v_2$-independent and $m_{\rm inv}$-averaged signal $螖纬_{\rm sig}$ = (0.03 $\pm$ 0.06 $\pm$ 0.08) $\times10^{-4}$, or $(2\pm4\pm5)\%$ of the inclusive $螖纬(m_{\rm inv}>0.4$ GeV/$c^2$)$ =(1.58 \pm 0.02 \pm 0.02) \times10^{-4}$, within pion $p_{T}$ = 0.2 - 0.8~\gevc and averaged over pseudorapidity ranges of $-1 < 畏< -0.05$ and $0.05 < 畏< 1$. This represents an upper limit of $0.23\times10^{-4}$, or $15\%$ of the inclusive result, at $95\%$ confidence level for the $m_{\rm inv}$-integrated CME contribution. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.05035v2-abstract-full').style.display = 'none'; document.getElementById('2006.05035v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 September, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 June, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">PRC published version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 106, 034908 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2006.02153">arXiv:2006.02153</a> <span> [<a href="https://arxiv.org/pdf/2006.02153">pdf</a>, <a href="https://arxiv.org/format/2006.02153">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-020-08675-4">10.1140/epjc/s10052-020-08675-4 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Two-particle correlations in azimuthal angle and pseudorapidity in central $^7$Be+$^9$Be collisions at the CERN Super Proton Synchrotron </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+N">NA61/SHINE Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Aduszkiewicz%2C+A">A. Aduszkiewicz</a>, <a href="/search/hep-ex?searchtype=author&query=Andronov%2C+E+V">E. V. Andronov</a>, <a href="/search/hep-ex?searchtype=author&query=Anti%C4%87i%C4%87%2C+T">T. Anti膰i膰</a>, <a href="/search/hep-ex?searchtype=author&query=Babkin%2C+V">V. Babkin</a>, <a href="/search/hep-ex?searchtype=author&query=Baszczyk%2C+M">M. Baszczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Bhosale%2C+S">S. Bhosale</a>, <a href="/search/hep-ex?searchtype=author&query=Blondel%2C+A">A. Blondel</a>, <a href="/search/hep-ex?searchtype=author&query=Bogomilov%2C+M">M. Bogomilov</a>, <a href="/search/hep-ex?searchtype=author&query=Brandin%2C+A">A. Brandin</a>, <a href="/search/hep-ex?searchtype=author&query=Bravar%2C+A">A. Bravar</a>, <a href="/search/hep-ex?searchtype=author&query=Bryli%C5%84ski%2C+W">W. Bryli艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=Brzychczyk%2C+J">J. Brzychczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Buryakov%2C+M">M. Buryakov</a>, <a href="/search/hep-ex?searchtype=author&query=Busygina%2C+O">O. Busygina</a>, <a href="/search/hep-ex?searchtype=author&query=Bzdak%2C+A">A. Bzdak</a>, <a href="/search/hep-ex?searchtype=author&query=Cherif%2C+H">H. Cherif</a>, <a href="/search/hep-ex?searchtype=author&query=%C4%86irkovi%C4%87%2C+M">M. 膯irkovi膰</a>, <a href="/search/hep-ex?searchtype=author&query=Csanad%2C+M">M. Csanad</a>, <a href="/search/hep-ex?searchtype=author&query=Cybowska%2C+J">J. Cybowska</a>, <a href="/search/hep-ex?searchtype=author&query=Czopowicz%2C+T">T. Czopowicz</a>, <a href="/search/hep-ex?searchtype=author&query=Damyanova%2C+A">A. Damyanova</a>, <a href="/search/hep-ex?searchtype=author&query=Davis%2C+N">N. Davis</a>, <a href="/search/hep-ex?searchtype=author&query=Deliyergiyev%2C+M">M. Deliyergiyev</a> , et al. (114 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2006.02153v2-abstract-short" style="display: inline;"> A measurement of charged hadron pair correlations in two-dimensional $螖畏螖蠁$ space is presented. The analysis is based on total 30 million central Be+Be collisions observed in the NA61/SHINE detector at the CERN SPS for incident beam momenta of 19$A$, 30$A$, 40$A$, 75$A$, and 150$A$ GeV/$c$. Measurements were carried out for unlike-sign and like-sign charge hadron pairs independently. The… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.02153v2-abstract-full').style.display = 'inline'; document.getElementById('2006.02153v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2006.02153v2-abstract-full" style="display: none;"> A measurement of charged hadron pair correlations in two-dimensional $螖畏螖蠁$ space is presented. The analysis is based on total 30 million central Be+Be collisions observed in the NA61/SHINE detector at the CERN SPS for incident beam momenta of 19$A$, 30$A$, 40$A$, 75$A$, and 150$A$ GeV/$c$. Measurements were carried out for unlike-sign and like-sign charge hadron pairs independently. The $C(螖畏,螖蠁)$ correlation functions were compared with results from a similar analysis on p+p interactions at similar beam momenta per nucleon. General trends of the back-to-back correlations are similar in central Be+Be collisions and p+p interactions, but are suppressed in magnitude due to the increased combinatorial background. Predictions from the EPOS and UrQMD models are compared to the measurements. Evolution of an enhancement around $(螖畏,螖蠁) = (0,0)$ with incident energy is observed in central Be+Be collisions. It is not predicted by both models and almost non-existing in proton-proton collisions at the same momentum per nucleon. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.02153v2-abstract-full').style.display = 'none'; document.getElementById('2006.02153v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 January, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 3 June, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">28 pages, 17 figures, applied corrections after journal review</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. C 80, 1151 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2006.02062">arXiv:2006.02062</a> <span> [<a href="https://arxiv.org/pdf/2006.02062">pdf</a>, <a href="https://arxiv.org/format/2006.02062">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Measurements of $螢^{-}$ and $\overline螢^{+}$ production in proton-proton interactions at $\sqrt{s_{NN}}$ = 17.3 GeV in the NA61/SHINE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+N">NA61/SHINE Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Aduszkiewicz%2C+A">A. Aduszkiewicz</a>, <a href="/search/hep-ex?searchtype=author&query=Andronov%2C+E+V">E. V. Andronov</a>, <a href="/search/hep-ex?searchtype=author&query=Anti%C4%87i%C4%87%2C+T">T. Anti膰i膰</a>, <a href="/search/hep-ex?searchtype=author&query=Babkin%2C+V">V. Babkin</a>, <a href="/search/hep-ex?searchtype=author&query=Baszczyk%2C+M">M. Baszczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Bhosale%2C+S">S. Bhosale</a>, <a href="/search/hep-ex?searchtype=author&query=Blondel%2C+A">A. Blondel</a>, <a href="/search/hep-ex?searchtype=author&query=Bogomilov%2C+M">M. Bogomilov</a>, <a href="/search/hep-ex?searchtype=author&query=Brandin%2C+A">A. Brandin</a>, <a href="/search/hep-ex?searchtype=author&query=Bravar%2C+A">A. Bravar</a>, <a href="/search/hep-ex?searchtype=author&query=Bryli%C5%84ski%2C+W">W. Bryli艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=Brzychczyk%2C+J">J. Brzychczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Buryakov%2C+M">M. Buryakov</a>, <a href="/search/hep-ex?searchtype=author&query=Busygina%2C+O">O. Busygina</a>, <a href="/search/hep-ex?searchtype=author&query=Bzdak%2C+A">A. Bzdak</a>, <a href="/search/hep-ex?searchtype=author&query=Cherif%2C+H">H. Cherif</a>, <a href="/search/hep-ex?searchtype=author&query=%C4%86irkovi%C4%87%2C+M">M. 膯irkovi膰</a>, <a href="/search/hep-ex?searchtype=author&query=Csanad%2C+M">M. Csanad</a>, <a href="/search/hep-ex?searchtype=author&query=Cybowska%2C+J">J. Cybowska</a>, <a href="/search/hep-ex?searchtype=author&query=Czopowicz%2C+T">T. Czopowicz</a>, <a href="/search/hep-ex?searchtype=author&query=Damyanova%2C+A">A. Damyanova</a>, <a href="/search/hep-ex?searchtype=author&query=Davis%2C+N">N. Davis</a>, <a href="/search/hep-ex?searchtype=author&query=Deliyergiyev%2C+M">M. Deliyergiyev</a> , et al. (114 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2006.02062v2-abstract-short" style="display: inline;"> The production of $螢(1321)^{-}$ and $\overline螢(1321)^{+}$ hyperons in inelastic p+p interactions is studied in a fixed target experiment at a beam momentum of 158 GeV/textit{c}. Double differential distributions in rapidity y and transverse momentum $p_{T}$ are obtained from a sample of 33M inelastic events. They allow to extrapolate the spectra to full phase space and to determine the mean multi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.02062v2-abstract-full').style.display = 'inline'; document.getElementById('2006.02062v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2006.02062v2-abstract-full" style="display: none;"> The production of $螢(1321)^{-}$ and $\overline螢(1321)^{+}$ hyperons in inelastic p+p interactions is studied in a fixed target experiment at a beam momentum of 158 GeV/textit{c}. Double differential distributions in rapidity y and transverse momentum $p_{T}$ are obtained from a sample of 33M inelastic events. They allow to extrapolate the spectra to full phase space and to determine the mean multiplicity of both $螢^{-}$ and $\overline螢^{+}$. The rapidity and transverse momentum spectra are compared to transport model predictions. The $螢^{-}$ mean multiplicity in inelastic p+p interactions at 158~\GeVc is used to quantify the strangeness enhancement in A+A collisions at the same centre-of-mass energy per nucleon pair. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.02062v2-abstract-full').style.display = 'none'; document.getElementById('2006.02062v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 January, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 3 June, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2020. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2006.00582">arXiv:2006.00582</a> <span> [<a href="https://arxiv.org/pdf/2006.00582">pdf</a>, <a href="https://arxiv.org/format/2006.00582">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.102.054913">10.1103/PhysRevC.102.054913 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of inclusive charged-particle jet production in Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/hep-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/hep-ex?searchtype=author&query=Atetalla%2C+F+G">F. G. Atetalla</a>, <a href="/search/hep-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/hep-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/hep-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/hep-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/hep-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/hep-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a> , et al. (340 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2006.00582v3-abstract-short" style="display: inline;"> The STAR Collaboration at the Relativistic Heavy Ion Collider reports the first measurement of inclusive jet production in peripheral and central Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV. Jets are reconstructed with the anti-k$_{T}$ algorithm using charged tracks with pseudorapidity $|畏|<1.0$ and transverse momentum $0.2<p_{T,jet}^{ch}<30$ GeV/$c$, with jet resolution parameter $R$=0.2, 0.3, an… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.00582v3-abstract-full').style.display = 'inline'; document.getElementById('2006.00582v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2006.00582v3-abstract-full" style="display: none;"> The STAR Collaboration at the Relativistic Heavy Ion Collider reports the first measurement of inclusive jet production in peripheral and central Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV. Jets are reconstructed with the anti-k$_{T}$ algorithm using charged tracks with pseudorapidity $|畏|<1.0$ and transverse momentum $0.2<p_{T,jet}^{ch}<30$ GeV/$c$, with jet resolution parameter $R$=0.2, 0.3, and 0.4. The large background yield uncorrelated with the jet signal is observed to be dominated by statistical phase space, consistent with a previous coincidence measurement. This background is suppressed by requiring a high-transverse-momentum (high-$p_T$) leading hadron in accepted jet candidates. The bias imposed by this requirement is assessed, and the $p_T$ region in which the bias is small is identified. Inclusive charged-particle jet distributions are reported in peripheral and central Au+Au collisions for $5<p_{T,jet}^{ch}<25$ GeV/$c$ and $5<p_{T,jet}^{ch}<30$ GeV/$c$, respectively. The charged-particle jet inclusive yield is suppressed for central Au+Au collisions, compared to both the peripheral Au+Au yield from this measurement and to the $pp$ yield calculated using the PYTHIA event generator. The magnitude of the suppression is consistent with that of inclusive hadron production at high $p_T$, and that of semi-inclusive recoil jet yield when expressed in terms of energy loss due to medium-induced energy transport. Comparison of inclusive charged-particle jet yields for different values of $R$ exhibits no significant evidence for medium-induced broadening of the transverse jet profile for $R<0.4$ in central Au+Au collisions. The measured distributions are consistent with theoretical model calculations that incorporate jet quenching. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.00582v3-abstract-full').style.display = 'none'; document.getElementById('2006.00582v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 January, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 31 May, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">27 pages, 20 figures, submitted to Physical Review C, minor changes to the text/references applied to reflect the Phys. Rev. C style and the published version of the paper</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.C 102 (2020) 5, 054913 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2004.11078">arXiv:2004.11078</a> <span> [<a href="https://arxiv.org/pdf/2004.11078">pdf</a>, <a href="https://arxiv.org/format/2004.11078">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP07(2020)178">10.1007/JHEP07(2020)178 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the central exclusive production of charged particle pairs in proton-proton collisions at $\sqrt{s} = 200$ GeV with the STAR detector at RHIC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/hep-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/hep-ex?searchtype=author&query=Atetalla%2C+F+G">F. G. Atetalla</a>, <a href="/search/hep-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/hep-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/hep-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/hep-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/hep-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/hep-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a> , et al. (340 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2004.11078v2-abstract-short" style="display: inline;"> We report on the measurement of the Central Exclusive Production of charged particle pairs $h^{+}h^{-}$ ($h = 蟺, K, p$) with the STAR detector at RHIC in proton-proton collisions at $\sqrt{s} = 200$ GeV. The charged particle pairs produced in the reaction $pp\to p^\prime+h^{+}h^{-}+p^\prime$ are reconstructed from the tracks in the central detector, while the forward-scattered protons are measured… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2004.11078v2-abstract-full').style.display = 'inline'; document.getElementById('2004.11078v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2004.11078v2-abstract-full" style="display: none;"> We report on the measurement of the Central Exclusive Production of charged particle pairs $h^{+}h^{-}$ ($h = 蟺, K, p$) with the STAR detector at RHIC in proton-proton collisions at $\sqrt{s} = 200$ GeV. The charged particle pairs produced in the reaction $pp\to p^\prime+h^{+}h^{-}+p^\prime$ are reconstructed from the tracks in the central detector, while the forward-scattered protons are measured in the Roman Pot system. Differential cross sections are measured in the fiducial region, which roughly corresponds to the square of the four-momentum transfers at the proton vertices in the range $0.04~\mbox{GeV}^2 < -t_1 , -t_2 < 0.2~\mbox{GeV}^2$, invariant masses of the charged particle pairs up to a few GeV and pseudorapidities of the centrally-produced hadrons in the range $|畏|<0.7$. The measured cross sections are compared to phenomenological predictions based on the Double Pomeron Exchange (DPE) model. Structures observed in the mass spectra of $蟺^{+}蟺^{-}$ and $K^{+}K^{-}$ pairs are consistent with the DPE model, while angular distributions of pions suggest a dominant spin-0 contribution to $蟺^{+}蟺^{-}$ production. The fiducial $蟺^+蟺^-$ cross section is extrapolated to the Lorentz-invariant region, which allows decomposition of the invariant mass spectrum into continuum and resonant contributions. The extrapolated cross section is well described by the continuum production and at least three resonances, the $f_0(980)$, $f_2(1270)$ and $f_0(1500)$, with a possible small contribution from the $f_0(1370)$. Fits to the extrapolated differential cross section as a function of $t_1$ and $t_2$ enable extraction of the exponential slope parameters in several bins of the invariant mass of $蟺^+蟺^-$ pairs. These parameters are sensitive to the size of the interaction region. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2004.11078v2-abstract-full').style.display = 'none'; document.getElementById('2004.11078v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 July, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 April, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Published in Journal of High Energy Physics</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 07 (2020) 178 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2003.12136">arXiv:2003.12136</a> <span> [<a href="https://arxiv.org/pdf/2003.12136">pdf</a>, <a href="https://arxiv.org/format/2003.12136">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2020.135663">10.1016/j.physletb.2020.135663 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Results on Total and Elastic Cross Sections in Proton-Proton Collisions at $\sqrt{s} = 200$ GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/hep-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/hep-ex?searchtype=author&query=Atetalla%2C+F+G">F. G. Atetalla</a>, <a href="/search/hep-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/hep-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/hep-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/hep-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/hep-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/hep-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a> , et al. (340 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2003.12136v2-abstract-short" style="display: inline;"> We report results on the total and elastic cross sections in proton-proton collisions at $\sqrt{s}=200$ GeV obtained with the Roman Pot setup of the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The elastic differential cross section was measured in the squared four-momentum transfer range $0.045 \leq -t \leq 0.135$ GeV$^2$. The value of the exponential slope parameter $B$ of the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2003.12136v2-abstract-full').style.display = 'inline'; document.getElementById('2003.12136v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2003.12136v2-abstract-full" style="display: none;"> We report results on the total and elastic cross sections in proton-proton collisions at $\sqrt{s}=200$ GeV obtained with the Roman Pot setup of the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The elastic differential cross section was measured in the squared four-momentum transfer range $0.045 \leq -t \leq 0.135$ GeV$^2$. The value of the exponential slope parameter $B$ of the elastic differential cross section $d蟽/dt \sim e^{-Bt}$ in the measured $-t$ range was found to be $B = 14.32 \pm 0.09 (stat.)^{\scriptstyle +0.13}_{\scriptstyle -0.28} (syst.)$ GeV$^{-2}$. The total cross section $蟽_{tot}$, obtained from extrapolation of the $d蟽/dt$ to the optical point at $-t = 0$, is $蟽_{tot} = 54.67 \pm 0.21 (stat.) ^{\scriptstyle +1.28}_{\scriptstyle -1.38} (syst.)$ mb. We also present the values of the elastic cross section $蟽_{el} = 10.85 \pm 0.03 (stat.) ^{\scriptstyle +0.49}_{\scriptstyle -0.41}(syst.)$ mb, the elastic cross section integrated within the STAR $t$-range $蟽^{det}_{el} = 4.05 \pm 0.01 (stat.) ^{\scriptstyle+0.18}_{\scriptstyle -0.17}(syst.)$ mb, and the inelastic cross section $蟽_{inel} = 43.82 \pm 0.21 (stat.) ^{\scriptstyle +1.37}_{\scriptstyle -1.44} (syst.)$ mb. The results are compared with the world data. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2003.12136v2-abstract-full').style.display = 'none'; document.getElementById('2003.12136v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 August, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 March, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Updated version. New figure 4 and updated text. Accepted for publication in Phys. Lett. B</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2003.02114">arXiv:2003.02114</a> <span> [<a href="https://arxiv.org/pdf/2003.02114">pdf</a>, <a href="https://arxiv.org/format/2003.02114">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2020.135846">10.1016/j.physletb.2020.135846 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of Groomed Jet Substructure Observables in \pp Collisions at $\sqrt{s} = 200$ GeV with STAR </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/hep-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/hep-ex?searchtype=author&query=Atetalla%2C+F+G">F. G. Atetalla</a>, <a href="/search/hep-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/hep-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/hep-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/hep-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/hep-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/hep-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a> , et al. (335 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2003.02114v2-abstract-short" style="display: inline;"> In this letter, measurements of the shared momentum fraction ($z_{\rm{g}}$) and the groomed jet radius ($R_{\rm{g}}$), as defined in the SoftDrop algorihm, are reported in \pp collisions at $\sqrt{s} = 200$ GeV collected by the STAR experiment. These substructure observables are differentially measured for jets of varying resolution parameters from $R = 0.2 - 0.6$ in the transverse momentum range… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2003.02114v2-abstract-full').style.display = 'inline'; document.getElementById('2003.02114v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2003.02114v2-abstract-full" style="display: none;"> In this letter, measurements of the shared momentum fraction ($z_{\rm{g}}$) and the groomed jet radius ($R_{\rm{g}}$), as defined in the SoftDrop algorihm, are reported in \pp collisions at $\sqrt{s} = 200$ GeV collected by the STAR experiment. These substructure observables are differentially measured for jets of varying resolution parameters from $R = 0.2 - 0.6$ in the transverse momentum range $15 < p_{\rm{T, jet}} < 60$ GeV$/c$. These studies show that, in the $p_{\rm{T, jet}}$ range accessible at $\sqrt{s} = 200$ GeV and with increasing jet resolution parameter and jet transverse momentum, the $z_{\rm{g}}$ distribution asymptotically converges to the DGLAP splitting kernel for a quark radiating a gluon. The groomed jet radius measurements reflect a momentum-dependent narrowing of the jet structure for jets of a given resolution parameter, i.e., the larger the $p_{\rm{T, jet}}$, the narrower the first splitting. For the first time, these fully corrected measurements are compared to Monte Carlo generators with leading order QCD matrix elements and leading log in the parton shower, and to state-of-the-art theoretical calculations at next-to-leading-log accuracy. We observe that PYTHIA 6 with parameters tuned to reproduce RHIC measurements is able to quantitatively describe data, whereas PYTHIA 8 and HERWIG 7, tuned to reproduce LHC data, are unable to provide a simultaneous description of both $z_{\rm{g}}$ and $R_{\rm{g}}$, resulting in opportunities for fine parameter tuning of these models for \pp collisions at RHIC energies. We also find that the theoretical calculations without non-perturbative corrections are able to qualitatively describe the trend in data for jets of large resolution parameters at high $p_{\rm{T, jet}}$, but fail at small jet resolution parameters and low jet transverse momenta. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2003.02114v2-abstract-full').style.display = 'none'; document.getElementById('2003.02114v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 5 January, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 4 March, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">published version. see journal website for supplemental material</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett.B 811 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2001.06419">arXiv:2001.06419</a> <span> [<a href="https://arxiv.org/pdf/2001.06419">pdf</a>, <a href="https://arxiv.org/ps/2001.06419">ps</a>, <a href="https://arxiv.org/format/2001.06419">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.102.024903">10.1103/PhysRevC.102.024903 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Beam energy dependence of net-$螞$ fluctuations measured by the STAR experiment at RHIC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/hep-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/hep-ex?searchtype=author&query=Atetalla%2C+F+G">F. G. Atetalla</a>, <a href="/search/hep-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/hep-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/hep-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/hep-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/hep-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/hep-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a> , et al. (334 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2001.06419v1-abstract-short" style="display: inline;"> The measurements of particle multiplicity distributions have generated considerable interest in understanding the fluctuations of conserved quantum numbers in the Quantum Chromodynamics (QCD) hadronization regime, in particular near a possible critical point and near the chemical freeze-out. We report the measurement of efficiency and centrality bin width corrected cumulant ratios ($C_{2}/C_{1}$,… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2001.06419v1-abstract-full').style.display = 'inline'; document.getElementById('2001.06419v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2001.06419v1-abstract-full" style="display: none;"> The measurements of particle multiplicity distributions have generated considerable interest in understanding the fluctuations of conserved quantum numbers in the Quantum Chromodynamics (QCD) hadronization regime, in particular near a possible critical point and near the chemical freeze-out. We report the measurement of efficiency and centrality bin width corrected cumulant ratios ($C_{2}/C_{1}$, $C_{3}/C_{2}$) of net-$螞$ distributions, in the context of both strangeness and baryon number conservation, as a function of collision energy, centrality and rapidity. The results are for Au + Au collisions at five beam energies ($\sqrt{s_{NN}}$ = 19.6, 27, 39, 62.4 and 200 GeV) recorded with the Solenoidal Tracker at RHIC (STAR). We compare our results to the Poisson and negative binomial (NBD) expectations, as well as to Ultra-relativistic Quantum Molecular Dynamics (UrQMD) and Hadron Resonance Gas (HRG) model predictions. Both NBD and Poisson baselines agree with data within the statistical and systematic uncertainties. The ratios of the measured cumulants show no features of critical fluctuations. The chemical freeze-out temperatures extracted from a recent HRG calculation, which was successfully used to describe the net-proton, net-kaon and net-charge data, indicate $螞$ freeze-out conditions similar to those of kaons. However, large deviations are found when comparing to temperatures obtained from net-proton fluctuations. The net-$螞$ cumulants show a weak, but finite, dependence on the rapidity coverage in the acceptance of the detector, which can be attributed to quantum number conservation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2001.06419v1-abstract-full').style.display = 'none'; document.getElementById('2001.06419v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 January, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 9 figures, 3 tables, submitted to Phys.Rev.C</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 102, 024903 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2001.02852">arXiv:2001.02852</a> <span> [<a href="https://arxiv.org/pdf/2001.02852">pdf</a>, <a href="https://arxiv.org/format/2001.02852">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.126.092301">10.1103/PhysRevLett.126.092301 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Non-monotonic energy dependence of net-proton number fluctuations </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/hep-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/hep-ex?searchtype=author&query=Atetalla%2C+F+G">F. G. Atetalla</a>, <a href="/search/hep-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/hep-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/hep-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/hep-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/hep-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/hep-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a> , et al. (334 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2001.02852v3-abstract-short" style="display: inline;"> Non-monotonic variation with collision energy ($\sqrt{s_{\rm NN}}$) of the moments of the net-baryon number distribution in heavy-ion collisions, related to the correlation length and the susceptibilities of the system, is suggested as a signature for the Quantum Chromodynamics (QCD) critical point. We report the first evidence of a non-monotonic variation in kurtosis times variance of the net-pro… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2001.02852v3-abstract-full').style.display = 'inline'; document.getElementById('2001.02852v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2001.02852v3-abstract-full" style="display: none;"> Non-monotonic variation with collision energy ($\sqrt{s_{\rm NN}}$) of the moments of the net-baryon number distribution in heavy-ion collisions, related to the correlation length and the susceptibilities of the system, is suggested as a signature for the Quantum Chromodynamics (QCD) critical point. We report the first evidence of a non-monotonic variation in kurtosis times variance of the net-proton number (proxy for net-baryon number) distribution as a function of \rootsnn with 3.1$蟽$ significance, for head-on (central) gold-on-gold (Au+Au) collisions measured using the STAR detector at RHIC. Data in non-central Au+Au collisions and models of heavy-ion collisions without a critical point show a monotonic variation as a function of $\sqrt{s_{\rm NN}}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2001.02852v3-abstract-full').style.display = 'none'; document.getElementById('2001.02852v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 October, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 January, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 Pages, 9 Figures and 5 Tables (published version)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physical Review Letters 126 (2021) 092301 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1912.12198">arXiv:1912.12198</a> <span> [<a href="https://arxiv.org/pdf/1912.12198">pdf</a>, <a href="https://arxiv.org/format/1912.12198">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.101.051101">10.1103/PhysRevD.101.051101 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for an exotic S=-2, Q=-2 baryon resonance in proton-proton interactions at $\sqrt{s_{NN}}$ = 17.3 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+N">NA61/SHINE Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Aduszkiewicz%2C+A">A. Aduszkiewicz</a>, <a href="/search/hep-ex?searchtype=author&query=Andronov%2C+E+V">E. V. Andronov</a>, <a href="/search/hep-ex?searchtype=author&query=Anti%C4%87i%C4%87%2C+T">T. Anti膰i膰</a>, <a href="/search/hep-ex?searchtype=author&query=Babkin%2C+V">V. Babkin</a>, <a href="/search/hep-ex?searchtype=author&query=Baszczyk%2C+M">M. Baszczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Bhosale%2C+S">S. Bhosale</a>, <a href="/search/hep-ex?searchtype=author&query=Blondel%2C+A">A. Blondel</a>, <a href="/search/hep-ex?searchtype=author&query=Bogomilov%2C+M">M. Bogomilov</a>, <a href="/search/hep-ex?searchtype=author&query=Brandin%2C+A">A. Brandin</a>, <a href="/search/hep-ex?searchtype=author&query=Bravar%2C+A">A. Bravar</a>, <a href="/search/hep-ex?searchtype=author&query=Bryli%C5%84ski%2C+W">W. Bryli艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=Brzychczyk%2C+J">J. Brzychczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Buryakov%2C+M">M. Buryakov</a>, <a href="/search/hep-ex?searchtype=author&query=Busygina%2C+O">O. Busygina</a>, <a href="/search/hep-ex?searchtype=author&query=Bzdak%2C+A">A. Bzdak</a>, <a href="/search/hep-ex?searchtype=author&query=Cherif%2C+H">H. Cherif</a>, <a href="/search/hep-ex?searchtype=author&query=%C4%86irkovi%C4%87%2C+M">M. 膯irkovi膰</a>, <a href="/search/hep-ex?searchtype=author&query=Csanad%2C+M">M. Csanad</a>, <a href="/search/hep-ex?searchtype=author&query=Cybowska%2C+J">J. Cybowska</a>, <a href="/search/hep-ex?searchtype=author&query=Czopowicz%2C+T">T. Czopowicz</a>, <a href="/search/hep-ex?searchtype=author&query=Damyanova%2C+A">A. Damyanova</a>, <a href="/search/hep-ex?searchtype=author&query=Davis%2C+N">N. Davis</a>, <a href="/search/hep-ex?searchtype=author&query=Deliyergiyev%2C+M">M. Deliyergiyev</a> , et al. (112 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1912.12198v4-abstract-short" style="display: inline;"> Pentaquark states have been extensively investigated theoretically in the context of the constituent quark model. In this paper results of an experimental search for pentaquarks in the \Xim\pim, \Xim\pip, \Xip\pim and \Xip\pip invariant mass spectra in proton-proton interactions at $\sqrt{s}$=17.3~\GeV are presented. Previous possible evidence from the NA49 collaboration of the existence of a narr… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.12198v4-abstract-full').style.display = 'inline'; document.getElementById('1912.12198v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1912.12198v4-abstract-full" style="display: none;"> Pentaquark states have been extensively investigated theoretically in the context of the constituent quark model. In this paper results of an experimental search for pentaquarks in the \Xim\pim, \Xim\pip, \Xip\pim and \Xip\pip invariant mass spectra in proton-proton interactions at $\sqrt{s}$=17.3~\GeV are presented. Previous possible evidence from the NA49 collaboration of the existence of a narrow \Xim\pim baryon resonance in p+p interactions is not confirmed with almost 10 times greater event statistics. The search was performed using the \NASixtyOne detector which reuses the main components of the NA49 apparatus. No signal was observed with either the selection cuts of NA49 or newly optimised cuts. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.12198v4-abstract-full').style.display = 'none'; document.getElementById('1912.12198v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 3 June, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 27 December, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">The papaer quote 33 M events while in reality after describted event cuts number reduced to 26M</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 101, 051101 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1912.10871">arXiv:1912.10871</a> <span> [<a href="https://arxiv.org/pdf/1912.10871">pdf</a>, <a href="https://arxiv.org/format/1912.10871">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.102.011901">10.1103/PhysRevC.102.011901 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Proton-proton interactions and onset of deconfinement </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Collaboration%2C+N">NA61/SHINE Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Aduszkiewicz%2C+A">A. Aduszkiewicz</a>, <a href="/search/hep-ex?searchtype=author&query=Andronov%2C+E+V">E. V. Andronov</a>, <a href="/search/hep-ex?searchtype=author&query=Anti%C4%87i%C4%87%2C+T">T. Anti膰i膰</a>, <a href="/search/hep-ex?searchtype=author&query=Babkin%2C+V">V. Babkin</a>, <a href="/search/hep-ex?searchtype=author&query=Baszczyk%2C+M">M. Baszczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Bhosale%2C+S">S. Bhosale</a>, <a href="/search/hep-ex?searchtype=author&query=Blondel%2C+A">A. Blondel</a>, <a href="/search/hep-ex?searchtype=author&query=Bogomilov%2C+M">M. Bogomilov</a>, <a href="/search/hep-ex?searchtype=author&query=Brandin%2C+A">A. Brandin</a>, <a href="/search/hep-ex?searchtype=author&query=Bravar%2C+A">A. Bravar</a>, <a href="/search/hep-ex?searchtype=author&query=Bryli%C5%84ski%2C+W">W. Bryli艅ski</a>, <a href="/search/hep-ex?searchtype=author&query=Brzychczyk%2C+J">J. Brzychczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Buryakov%2C+M">M. Buryakov</a>, <a href="/search/hep-ex?searchtype=author&query=Busygina%2C+O">O. Busygina</a>, <a href="/search/hep-ex?searchtype=author&query=Bzdak%2C+A">A. Bzdak</a>, <a href="/search/hep-ex?searchtype=author&query=Cherif%2C+H">H. Cherif</a>, <a href="/search/hep-ex?searchtype=author&query=%C4%86irkovi%C4%87%2C+M">M. 膯irkovi膰</a>, <a href="/search/hep-ex?searchtype=author&query=Csanad%2C+M">M. Csanad</a>, <a href="/search/hep-ex?searchtype=author&query=Cybowska%2C+J">J. Cybowska</a>, <a href="/search/hep-ex?searchtype=author&query=Czopowicz%2C+T">T. Czopowicz</a>, <a href="/search/hep-ex?searchtype=author&query=Damyanova%2C+A">A. Damyanova</a>, <a href="/search/hep-ex?searchtype=author&query=Davis%2C+N">N. Davis</a>, <a href="/search/hep-ex?searchtype=author&query=Deliyergiyev%2C+M">M. Deliyergiyev</a> , et al. (112 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1912.10871v2-abstract-short" style="display: inline;"> The NA61/SHINE experiment at the CERN SPS is performing a uniqe study of the phase diagram of strongly interacting matter by varying collision energy and nuclear mass number of colliding nuclei. In central Pb+Pb collisions the NA49 experiment found structures in the energy dependence of several observables in the CERN SPS energy range that had been predicted for the transition to a deconfined phas… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.10871v2-abstract-full').style.display = 'inline'; document.getElementById('1912.10871v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1912.10871v2-abstract-full" style="display: none;"> The NA61/SHINE experiment at the CERN SPS is performing a uniqe study of the phase diagram of strongly interacting matter by varying collision energy and nuclear mass number of colliding nuclei. In central Pb+Pb collisions the NA49 experiment found structures in the energy dependence of several observables in the CERN SPS energy range that had been predicted for the transition to a deconfined phase. New measurements of NA61/SHINE find intriguing similarities in p+p interactions for which no deconfinement transition is expected at SPS energies. Possible implications will be discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.10871v2-abstract-full').style.display = 'none'; document.getElementById('1912.10871v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 2 January, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 December, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 102, 011901 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1912.08187">arXiv:1912.08187</a> <span> [<a href="https://arxiv.org/pdf/1912.08187">pdf</a>, <a href="https://arxiv.org/format/1912.08187">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.101.052004">10.1103/PhysRevD.101.052004 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Underlying event measurements in $p$+$p$ collisions at $\sqrt{s}= 200 $ GeV at RHIC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/hep-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/hep-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/hep-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/hep-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/hep-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/hep-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/hep-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/hep-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/hep-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/hep-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/hep-ex?searchtype=author&query=Atetalla%2C+F+G">F. G. Atetalla</a>, <a href="/search/hep-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/hep-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/hep-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/hep-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/hep-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/hep-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/hep-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/hep-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/hep-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/hep-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/hep-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a> , et al. (334 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1912.08187v1-abstract-short" style="display: inline;"> Particle production sensitive to non-factorizable and non-perturbative processes that contribute to the underlying event associated with a high transverse momentum ($p_{T}$) jet in proton+proton collisions at $\sqrt{s}$=200 GeV is studied with the STAR detector. Each event is divided into three regions based on the azimuthal angle with respect to the highest-$p_{T}$ jet direction: in the leading j… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.08187v1-abstract-full').style.display = 'inline'; document.getElementById('1912.08187v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1912.08187v1-abstract-full" style="display: none;"> Particle production sensitive to non-factorizable and non-perturbative processes that contribute to the underlying event associated with a high transverse momentum ($p_{T}$) jet in proton+proton collisions at $\sqrt{s}$=200 GeV is studied with the STAR detector. Each event is divided into three regions based on the azimuthal angle with respect to the highest-$p_{T}$ jet direction: in the leading jet direction ("Toward"), opposite to the leading jet ("Away"), and perpendicular to the leading jet ("Transverse"). In the Transverse region, the average charged particle density is found to be between 0.4 and 0.6 and the mean transverse momentum, $\langle p_{T}\rangle$, between 0.5-0.7 GeV/$c$ for particles with $p_{T}$$>$0.2 GeV/$c$ at mid-pseudorapidity ($|畏|$$<$1) and jet $p_{T}$$>$15 GeV/$c$. Both average particle density and $\langle p_{T}\rangle$ depend weakly on the leading jet $p_{T}$. Closer inspection of the Transverse region hints that contributions to the underlying event from initial- and final-state radiation are significantly smaller in these collisions than at the higher energies, up to 13 TeV, recorded at the LHC. Underlying event measurements associated with a high-$p_{T}$ jet will contribute to our understanding of QCD processes at hard and soft scales at RHIC energies, as well as provide constraints to modeling of underlying event dynamics. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.08187v1-abstract-full').style.display = 'none'; document.getElementById('1912.08187v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 December, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 101, 052004 (2020) </p> </li> </ol> <nav class="pagination is-small is-centered breathe-horizontal" role="navigation" aria-label="pagination"> <a href="" class="pagination-previous is-invisible">Previous </a> <a href="/search/?searchtype=author&query=Brandin%2C+A&start=50" class="pagination-next" >Next </a> <ul class="pagination-list"> <li> <a href="/search/?searchtype=author&query=Brandin%2C+A&start=0" class="pagination-link is-current" aria-label="Goto page 1">1 </a> </li> <li> <a href="/search/?searchtype=author&query=Brandin%2C+A&start=50" class="pagination-link " aria-label="Page 2" aria-current="page">2 </a> </li> <li> <a href="/search/?searchtype=author&query=Brandin%2C+A&start=100" class="pagination-link " aria-label="Page 3" aria-current="page">3 </a> </li> </ul> </nav> <div class="is-hidden-tablet">  <span class="help" style="display: inline-block;"><a href="https://github.com/arXiv/arxiv-search/releases">Search v0.5.6 released 2020-02-24</a>  </span> </div> </div> </main> 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