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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=Bai%2C+X&start=50" class="pagination-next" >Next </a> <ul class="pagination-list"> <li> <a href="/search/?searchtype=author&query=Bai%2C+X&start=0" class="pagination-link is-current" aria-label="Goto page 1">1 </a> </li> <li> <a href="/search/?searchtype=author&query=Bai%2C+X&start=50" class="pagination-link " aria-label="Page 2" aria-current="page">2 </a> </li> <li> <a href="/search/?searchtype=author&query=Bai%2C+X&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/2410.12099">arXiv:2410.12099</a> <span> [<a href="https://arxiv.org/pdf/2410.12099">pdf</a>, <a href="https://arxiv.org/ps/2410.12099">ps</a>, <a href="https://arxiv.org/format/2410.12099">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> </div> </div> <p class="title is-5 mathjax"> The EMC Effect of Tritium and Helium-3 from the JLab MARATHON Experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Abrams%2C+D">D. Abrams</a>, <a href="/search/nucl-ex?searchtype=author&query=Albataineh%2C+H">H. Albataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Aljawrneh%2C+B+S">B. S. Aljawrneh</a>, <a href="/search/nucl-ex?searchtype=author&query=Alsalmi%2C+S">S. Alsalmi</a>, <a href="/search/nucl-ex?searchtype=author&query=Androic%2C+D">D. Androic</a>, <a href="/search/nucl-ex?searchtype=author&query=Aniol%2C+K">K. Aniol</a>, <a href="/search/nucl-ex?searchtype=author&query=Armstrong%2C+W">W. Armstrong</a>, <a href="/search/nucl-ex?searchtype=author&query=Arrington%2C+J">J. Arrington</a>, <a href="/search/nucl-ex?searchtype=author&query=Atac%2C+H">H. Atac</a>, <a href="/search/nucl-ex?searchtype=author&query=Averett%2C+T">T. Averett</a>, <a href="/search/nucl-ex?searchtype=author&query=Gayoso%2C+C+A">C. Ayerbe Gayoso</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bane%2C+J">J. Bane</a>, <a href="/search/nucl-ex?searchtype=author&query=Barcus%2C+S">S. Barcus</a>, <a href="/search/nucl-ex?searchtype=author&query=Beck%2C+A">A. Beck</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellini%2C+V">V. Bellini</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhatt%2C+H">H. Bhatt</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhetuwal%2C+D">D. Bhetuwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Biswas%2C+D">D. Biswas</a>, <a href="/search/nucl-ex?searchtype=author&query=Blyth%2C+D">D. Blyth</a>, <a href="/search/nucl-ex?searchtype=author&query=Boeglin%2C+W">W. Boeglin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bulumulla%2C+D">D. Bulumulla</a>, <a href="/search/nucl-ex?searchtype=author&query=Butler%2C+J">J. Butler</a>, <a href="/search/nucl-ex?searchtype=author&query=Camsonne%2C+A">A. Camsonne</a>, <a href="/search/nucl-ex?searchtype=author&query=Carmignotto%2C+M">M. Carmignotto</a> , et al. (109 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="2410.12099v1-abstract-short" style="display: inline;"> Measurements of the EMC effect in the tritium and helium-3 mirror nuclei are reported. The data were obtained by the MARATHON Jefferson Lab experiment, which performed deep inelastic electron scattering from deuterium and the three-body nuclei, using a cryogenic gas target system and the High Resolution Spectrometers of the Hall A Facility of the Lab. The data cover the Bjorken $x$ range from 0.20… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.12099v1-abstract-full').style.display = 'inline'; document.getElementById('2410.12099v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2410.12099v1-abstract-full" style="display: none;"> Measurements of the EMC effect in the tritium and helium-3 mirror nuclei are reported. The data were obtained by the MARATHON Jefferson Lab experiment, which performed deep inelastic electron scattering from deuterium and the three-body nuclei, using a cryogenic gas target system and the High Resolution Spectrometers of the Hall A Facility of the Lab. The data cover the Bjorken $x$ range from 0.20 to 0.83, corresponding to a squared four-momentum transfer $Q^2$ range from 2.7 to $11.9\gevsq$, and to an invariant mass $W$ of the final hadronic state greater than 1.84 GeV/${\it c}^2$. The tritium EMC effect measurement is the first of its kind. The MARATHON experimental results are compared to results from previous measurements by DESY-HERMES and JLab-Hall C experiments, as well as with few-body theoretical predictions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.12099v1-abstract-full').style.display = 'none'; document.getElementById('2410.12099v1-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 October, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 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: text overlap with arXiv:2104.05850</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2409.17964">arXiv:2409.17964</a> <span> [<a href="https://arxiv.org/pdf/2409.17964">pdf</a>, <a href="https://arxiv.org/format/2409.17964">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"> Properties of the QCD Matter: A Review of Selected Results from the ALICE Experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Shou%2C+Q">Qi-Ye Shou</a>, <a href="/search/nucl-ex?searchtype=author&query=Ma%2C+Y">Yu-Gang Ma</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhang%2C+S">Song Zhang</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhu%2C+J">Jian-Hui Zhu</a>, <a href="/search/nucl-ex?searchtype=author&query=Mao%2C+Y">Ya-Xian Mao</a>, <a href="/search/nucl-ex?searchtype=author&query=Pei%2C+H">Hua Pei</a>, <a href="/search/nucl-ex?searchtype=author&query=Yin%2C+Z">Zhong-Bao Yin</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhang%2C+X">Xiao-Ming Zhang</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhou%2C+D">Dai-Cui Zhou</a>, <a href="/search/nucl-ex?searchtype=author&query=Peng%2C+X">Xin-Ye Peng</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">Xiao-Zhi Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Tang%2C+Z">Ze-Bo Tang</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhang%2C+Y">Yi-Fei Zhang</a>, <a href="/search/nucl-ex?searchtype=author&query=Li%2C+X">Xiao-Mei Li</a> </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="2409.17964v1-abstract-short" style="display: inline;"> The Large Hadron Collider (LHC), the world's largest and most powerful particle accelerator, has been a pivotal tool in advancing our understanding of fundamental physics. By colliding heavy ions (such as lead ions), the LHC recreates conditions similar to those just after the Big Bang. This allows scientists to study the Quark-Gluon Plasma (QGP), a state of matter where quarks and gluons are not… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.17964v1-abstract-full').style.display = 'inline'; document.getElementById('2409.17964v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2409.17964v1-abstract-full" style="display: none;"> The Large Hadron Collider (LHC), the world's largest and most powerful particle accelerator, has been a pivotal tool in advancing our understanding of fundamental physics. By colliding heavy ions (such as lead ions), the LHC recreates conditions similar to those just after the Big Bang. This allows scientists to study the Quark-Gluon Plasma (QGP), a state of matter where quarks and gluons are not confined within protons and neutrons. These studies provide insights into the strong force and the early universe's behavior. In this paper, we provide a comprehensive overview of recent significant findings from A Large Ion Collider Experiment (ALICE) at LHC. The topics encompass measurements regarding to properties of the QGP, particle production, flow and correlations, dileptons, quarkonia and electromagnetic probes, heavy flavor, and jets. Additionally, we introduce future plans for detector upgrades of the ALICE experiment. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.17964v1-abstract-full').style.display = 'none'; document.getElementById('2409.17964v1-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 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 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">29 pages, 32 figures. This review is dedicated to Professor Wenqing Shen in honor of his leadership and significant impact on the Chinese heavy-ion physics community. All authors contributed equally to this work</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2409.16370">arXiv:2409.16370</a> <span> [<a href="https://arxiv.org/pdf/2409.16370">pdf</a>, <a href="https://arxiv.org/format/2409.16370">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> </div> </div> <p class="title is-5 mathjax"> Quasielastic $\overrightarrow{^{3}\mathrm{He}}(\overrightarrow{e},{e'})$ Asymmetry in the Threshold Region </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Nycz%2C+M">M. Nycz</a>, <a href="/search/nucl-ex?searchtype=author&query=Armstrong%2C+W">W. Armstrong</a>, <a href="/search/nucl-ex?searchtype=author&query=Averett%2C+T">T. Averett</a>, <a href="/search/nucl-ex?searchtype=author&query=Gayoso%2C+C+A">C. Ayerbe Gayoso</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bane%2C+J">J. Bane</a>, <a href="/search/nucl-ex?searchtype=author&query=Barcus%2C+S">S. Barcus</a>, <a href="/search/nucl-ex?searchtype=author&query=Benesch%2C+J">J. Benesch</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhatt%2C+H">H. Bhatt</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhetuwal%2C+D">D. Bhetuwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Biswas%2C+D">D. Biswas</a>, <a href="/search/nucl-ex?searchtype=author&query=Camsonne%2C+A">A. Camsonne</a>, <a href="/search/nucl-ex?searchtype=author&query=Cates%2C+G">G. Cates</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+J">J-P. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+J">J. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+M">M. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Cotton%2C+C">C. Cotton</a>, <a href="/search/nucl-ex?searchtype=author&query=Dalton%2C+M">M-M. Dalton</a>, <a href="/search/nucl-ex?searchtype=author&query=Deltuva%2C+A">A. Deltuva</a>, <a href="/search/nucl-ex?searchtype=author&query=Deur%2C+A">A. Deur</a>, <a href="/search/nucl-ex?searchtype=author&query=Dhital%2C+B">B. Dhital</a>, <a href="/search/nucl-ex?searchtype=author&query=Duran%2C+B">B. Duran</a>, <a href="/search/nucl-ex?searchtype=author&query=Dusa%2C+S+C">S. C. Dusa</a>, <a href="/search/nucl-ex?searchtype=author&query=Fernando%2C+I">I. Fernando</a>, <a href="/search/nucl-ex?searchtype=author&query=Fuchey%2C+E">E. Fuchey</a> , et al. (75 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="2409.16370v1-abstract-short" style="display: inline;"> A measurement of the double-spin asymmetry from electron-$^{3}$He scattering in the threshold region of two- and three-body breakup of $^{3}$He was performed at Jefferson Lab, for Q$^{2}$ values of 0.1 and 0.2 (GeV/$c$)$^{2}$. The results of this measurement serve as a stringent test of our understanding of few-body systems. When compared with calculations from plane wave impulse approximation and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.16370v1-abstract-full').style.display = 'inline'; document.getElementById('2409.16370v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2409.16370v1-abstract-full" style="display: none;"> A measurement of the double-spin asymmetry from electron-$^{3}$He scattering in the threshold region of two- and three-body breakup of $^{3}$He was performed at Jefferson Lab, for Q$^{2}$ values of 0.1 and 0.2 (GeV/$c$)$^{2}$. The results of this measurement serve as a stringent test of our understanding of few-body systems. When compared with calculations from plane wave impulse approximation and Faddeev theory, we found that the Faddeev calculations, which use modern nuclear potentials and prescriptions for meson-exchange currents, demonstrate an overall good agreement with data. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.16370v1-abstract-full').style.display = 'none'; document.getElementById('2409.16370v1-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> 24 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2408.11144">arXiv:2408.11144</a> <span> [<a href="https://arxiv.org/pdf/2408.11144">pdf</a>, <a href="https://arxiv.org/format/2408.11144">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"> Measurement of inclusive jet cross section and substructure in $p$$+$$p$ collisions at $\sqrt{s_{_{NN}}}=200$ GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=PHENIX+Collaboration"> PHENIX Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdulameer%2C+N+J">N. J. Abdulameer</a>, <a href="/search/nucl-ex?searchtype=author&query=Acharya%2C+U">U. Acharya</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Akimoto%2C+R">R. Akimoto</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+J">J. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Alfred%2C+M">M. Alfred</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrieux%2C+V">V. Andrieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Antsupov%2C+S">S. Antsupov</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-ex?searchtype=author&query=Apadula%2C+N">N. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&query=Asano%2C+H">H. Asano</a>, <a href="/search/nucl-ex?searchtype=author&query=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Awes%2C+T+C">T. C. Awes</a>, <a href="/search/nucl-ex?searchtype=author&query=Azmoun%2C+B">B. Azmoun</a>, <a href="/search/nucl-ex?searchtype=author&query=Babintsev%2C+V">V. Babintsev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+M">M. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bandara%2C+N+S">N. S. Bandara</a>, <a href="/search/nucl-ex?searchtype=author&query=Bannier%2C+B">B. Bannier</a>, <a href="/search/nucl-ex?searchtype=author&query=Bannikov%2C+E">E. Bannikov</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K+N">K. N. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bathe%2C+S">S. Bathe</a> , et al. (422 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="2408.11144v1-abstract-short" style="display: inline;"> The jet cross-section and jet-substructure observables in $p$$+$$p$ collisions at $\sqrt{s}=200$ GeV were measured by the PHENIX Collaboration at the Relativistic Heavy Ion Collider (RHIC). Jets are reconstructed from charged-particle tracks and electromagnetic-calorimeter clusters using the anti-$k_{t}$ algorithm with a jet radius $R=0.3$ for jets with transverse momentum within $8.0<p_T<40.0$ Ge… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2408.11144v1-abstract-full').style.display = 'inline'; document.getElementById('2408.11144v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2408.11144v1-abstract-full" style="display: none;"> The jet cross-section and jet-substructure observables in $p$$+$$p$ collisions at $\sqrt{s}=200$ GeV were measured by the PHENIX Collaboration at the Relativistic Heavy Ion Collider (RHIC). Jets are reconstructed from charged-particle tracks and electromagnetic-calorimeter clusters using the anti-$k_{t}$ algorithm with a jet radius $R=0.3$ for jets with transverse momentum within $8.0<p_T<40.0$ GeV/$c$ and pseudorapidity $|畏|<0.15$. Measurements include the jet cross section, as well as distributions of SoftDrop-groomed momentum fraction ($z_g$), charged-particle transverse momentum with respect to jet axis ($j_T$), and radial distributions of charged particles within jets ($r$). Also meaureed was the distribution of $尉=-ln(z)$, where $z$ is the fraction of the jet momentum carried by the charged particle. The measurements are compared to theoretical next-to and next-to-next-to-leading-order calculatios, PYTHIA event generator, and to other existing experimental results. Indicated from these meaurements is a lower particle multiplicity in jets at RHIC energies when compared to models. Also noted are implications for future jet measurements with sPHENIX at RHIC as well as at the future Election-Ion Collider. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2408.11144v1-abstract-full').style.display = 'none'; document.getElementById('2408.11144v1-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 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 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">446 authors from 77 institutions, 11 pages, 8 figures. v1 is version submitted to Physical Review D. HEPdata tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2405.01444">arXiv:2405.01444</a> <span> [<a href="https://arxiv.org/pdf/2405.01444">pdf</a>, <a href="https://arxiv.org/format/2405.01444">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> </div> </div> <p class="title is-5 mathjax"> Data-driven analysis of the beauty hadron production in p+p collisions at the LHC with Bayesian unfolding </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">Xiaozhi Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Li%2C+G">Guangsheng Li</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhang%2C+Y">Yifei Zhang</a>, <a href="/search/nucl-ex?searchtype=author&query=Situ%2C+Q">Qingyi Situ</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+X">Xiaolong Chen</a> </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="2405.01444v2-abstract-short" style="display: inline;"> Heavy flavour production in proton-proton (pp) collisions provides insights into the fundamental properties of Quantum Chromodynamics (QCD). Beauty hadron production measurements are widely performed through indirect approaches based on their inclusive decay modes. A Bayesian unfolding data-driven analysis of the ALICE and LHCb data was performed in this study, which recovers the full kinematic in… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.01444v2-abstract-full').style.display = 'inline'; document.getElementById('2405.01444v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2405.01444v2-abstract-full" style="display: none;"> Heavy flavour production in proton-proton (pp) collisions provides insights into the fundamental properties of Quantum Chromodynamics (QCD). Beauty hadron production measurements are widely performed through indirect approaches based on their inclusive decay modes. A Bayesian unfolding data-driven analysis of the ALICE and LHCb data was performed in this study, which recovers the full kinematic information of the beauty hadrons via different inclusive decay channels. The corresponding beauty hadron production cross sections obtained after the Bayesian unfolding are found to be consistent within their uncertainties. The weighted average open beauty production cross sections are presented as a function of the transverse momentum and rapidity in pp collisions at $\sqrt{s}$ = 5.02 TeV and $\sqrt{s}$ = 13 TeV, respectively. The $p_T$-integrated open beauty production $\mathrm{d}蟽/\mathrm{d}y$ and the total $\mathrm{b}\rm\overline{b}$ cross section $蟽_{\rm \mathrm{b}\rm\overline{b}}$ are also reported. The precision of these results significantly improves upon worldwide measurements, providing valuable validation and constraints on mechanisms of heavy flavour production in pp collisions at the LHC energies. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.01444v2-abstract-full').style.display = 'none'; document.getElementById('2405.01444v2-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 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 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">14 pages, 6 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/2312.09827">arXiv:2312.09827</a> <span> [<a href="https://arxiv.org/pdf/2312.09827">pdf</a>, <a href="https://arxiv.org/format/2312.09827">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> </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.109.054910">10.1103/PhysRevC.109.054910 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Identified charged-hadron production in $p$$+$Al, $^3$He$+$Au, and Cu$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV and in U$+$U collisions at $\sqrt{s_{_{NN}}}=193$ GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=PHENIX+Collaboration"> PHENIX Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdulameer%2C+N+J">N. J. Abdulameer</a>, <a href="/search/nucl-ex?searchtype=author&query=Acharya%2C+U">U. Acharya</a>, <a href="/search/nucl-ex?searchtype=author&query=Adare%2C+A">A. Adare</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Akimoto%2C+R">R. Akimoto</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+J">J. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Alfred%2C+M">M. Alfred</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrieux%2C+V">V. Andrieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-ex?searchtype=author&query=Apadula%2C+N">N. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&query=Asano%2C+H">H. Asano</a>, <a href="/search/nucl-ex?searchtype=author&query=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Awes%2C+T+C">T. C. Awes</a>, <a href="/search/nucl-ex?searchtype=author&query=Azmoun%2C+B">B. Azmoun</a>, <a href="/search/nucl-ex?searchtype=author&query=Babintsev%2C+V">V. Babintsev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+M">M. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bandara%2C+N+S">N. S. Bandara</a>, <a href="/search/nucl-ex?searchtype=author&query=Bannier%2C+B">B. Bannier</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K+N">K. N. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bathe%2C+S">S. Bathe</a>, <a href="/search/nucl-ex?searchtype=author&query=Baublis%2C+V">V. Baublis</a> , et al. (456 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="2312.09827v2-abstract-short" style="display: inline;"> The PHENIX experiment has performed a systematic study of identified charged-hadron ($蟺^\pm$, $K^\pm$, $p$, $\bar{p}$) production at midrapidity in $p$$+$Al, $^3$He$+$Au, Cu$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV and U$+$U collisions at $\sqrt{s_{_{NN}}}=193$ GeV. Identified charged-hadron invariant transverse-momentum ($p_T$) and transverse-mass ($m_T$) spectra are presented and interprete… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2312.09827v2-abstract-full').style.display = 'inline'; document.getElementById('2312.09827v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2312.09827v2-abstract-full" style="display: none;"> The PHENIX experiment has performed a systematic study of identified charged-hadron ($蟺^\pm$, $K^\pm$, $p$, $\bar{p}$) production at midrapidity in $p$$+$Al, $^3$He$+$Au, Cu$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV and U$+$U collisions at $\sqrt{s_{_{NN}}}=193$ GeV. Identified charged-hadron invariant transverse-momentum ($p_T$) and transverse-mass ($m_T$) spectra are presented and interpreted in terms of radially expanding thermalized systems. The particle ratios of $K/蟺$ and $p/蟺$ have been measured in different centrality ranges of large (Cu$+$Au, U$+$U) and small ($p$$+$Al, $^3$He$+$Au) collision systems. The values of $K/蟺$ ratios measured in all considered collision systems were found to be consistent with those measured in $p$$+$$p$ collisions. However the values of $p/蟺$ ratios measured in large collision systems reach the values of $\approx0.6$, which is $\approx2$ times larger than in $p$$+$$p$ collisions. These results can be qualitatively understood in terms of the baryon enhancement expected from hadronization by recombination. Identified charged-hadron nuclear-modification factors ($R_{AB}$) are also presented. Enhancement of proton $R_{AB}$ values over meson $R_{AB}$ values was observed in central $^3$He$+$Au, Cu$+$Au, and U$+$U collisions. The proton $R_{AB}$ values measured in $p$$+$Al collision system were found to be consistent with $R_{AB}$ values of $蠁$, $蟺^\pm$, $K^\pm$, and $蟺^0$ mesons, which may indicate that the size of the system produced in $p$$+$Al collisions is too small for recombination to cause a noticeable increase in proton production. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2312.09827v2-abstract-full').style.display = 'none'; document.getElementById('2312.09827v2-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 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 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">480 authors from 78 institutions, 18 pages, 6 tables, 16 figures. v2 is version accepted for publication in Physical Review C. HEPdata tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 109, 054910 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2303.02579">arXiv:2303.02579</a> <span> [<a href="https://arxiv.org/pdf/2303.02579">pdf</a>, <a href="https://arxiv.org/format/2303.02579">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 - Phenomenology">hep-ph</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 Experiment">nucl-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/10.1016/j.nuclphysa.2024.122874">10.1016/j.nuclphysa.2024.122874 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The Present and Future of QCD </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Achenbach%2C+P">P. Achenbach</a>, <a href="/search/nucl-ex?searchtype=author&query=Adhikari%2C+D">D. Adhikari</a>, <a href="/search/nucl-ex?searchtype=author&query=Afanasev%2C+A">A. Afanasev</a>, <a href="/search/nucl-ex?searchtype=author&query=Afzal%2C+F">F. Afzal</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-bataineh%2C+A">A. Al-bataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Almaalol%2C+D+K">D. K. Almaalol</a>, <a href="/search/nucl-ex?searchtype=author&query=Amaryan%2C+M">M. Amaryan</a>, <a href="/search/nucl-ex?searchtype=author&query=Androi%C4%87%2C+D">D. Androi膰</a>, <a href="/search/nucl-ex?searchtype=author&query=Armstrong%2C+W+R">W. R. Armstrong</a>, <a href="/search/nucl-ex?searchtype=author&query=Arratia%2C+M">M. Arratia</a>, <a href="/search/nucl-ex?searchtype=author&query=Arrington%2C+J">J. Arrington</a>, <a href="/search/nucl-ex?searchtype=author&query=Asaturyan%2C+A">A. Asaturyan</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Atac%2C+H">H. Atac</a>, <a href="/search/nucl-ex?searchtype=author&query=Avakian%2C+H">H. Avakian</a>, <a href="/search/nucl-ex?searchtype=author&query=Averett%2C+T">T. Averett</a>, <a href="/search/nucl-ex?searchtype=author&query=Gayoso%2C+C+A">C. Ayerbe Gayoso</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K+N">K. N. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnea%2C+N">N. Barnea</a>, <a href="/search/nucl-ex?searchtype=author&query=Basar%2C+G">G. Basar</a>, <a href="/search/nucl-ex?searchtype=author&query=Battaglieri%2C+M">M. Battaglieri</a>, <a href="/search/nucl-ex?searchtype=author&query=Baty%2C+A+A">A. A. Baty</a>, <a href="/search/nucl-ex?searchtype=author&query=Bautista%2C+I">I. Bautista</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="2303.02579v1-abstract-short" style="display: inline;"> This White Paper presents the community inputs and scientific conclusions from the Hot and Cold QCD Town Meeting that took place September 23-25, 2022 at MIT, as part of the Nuclear Science Advisory Committee (NSAC) 2023 Long Range Planning process. A total of 424 physicists registered for the meeting. The meeting highlighted progress in Quantum Chromodynamics (QCD) nuclear physics since the 2015… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.02579v1-abstract-full').style.display = 'inline'; document.getElementById('2303.02579v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2303.02579v1-abstract-full" style="display: none;"> This White Paper presents the community inputs and scientific conclusions from the Hot and Cold QCD Town Meeting that took place September 23-25, 2022 at MIT, as part of the Nuclear Science Advisory Committee (NSAC) 2023 Long Range Planning process. A total of 424 physicists registered for the meeting. The meeting highlighted progress in Quantum Chromodynamics (QCD) nuclear physics since the 2015 LRP (LRP15) and identified key questions and plausible paths to obtaining answers to those questions, defining priorities for our research over the coming decade. In defining the priority of outstanding physics opportunities for the future, both prospects for the short (~ 5 years) and longer term (5-10 years and beyond) are identified together with the facilities, personnel and other resources needed to maximize the discovery potential and maintain United States leadership in QCD physics worldwide. This White Paper is organized as follows: In the Executive Summary, we detail the Recommendations and Initiatives that were presented and discussed at the Town Meeting, and their supporting rationales. Section 2 highlights major progress and accomplishments of the past seven years. It is followed, in Section 3, by an overview of the physics opportunities for the immediate future, and in relation with the next QCD frontier: the EIC. Section 4 provides an overview of the physics motivations and goals associated with the EIC. Section 5 is devoted to the workforce development and support of diversity, equity and inclusion. This is followed by a dedicated section on computing in Section 6. Section 7 describes the national need for nuclear data science and the relevance to QCD research. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.02579v1-abstract-full').style.display = 'none'; document.getElementById('2303.02579v1-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 March, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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">QCD Town Meeting White Paper, as submitted to 2023 NSAC LRP committee on Feb. 28, 2023</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nucl.Phys.A 1047 (2024) 122874 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2301.08768">arXiv:2301.08768</a> <span> [<a href="https://arxiv.org/pdf/2301.08768">pdf</a>, <a href="https://arxiv.org/format/2301.08768">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> </div> </div> <p class="title is-5 mathjax"> A new direct detection electron scattering experiment to search for the X17 particle </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Dutta%2C+D">D. Dutta</a>, <a href="/search/nucl-ex?searchtype=author&query=Gao%2C+H">H. Gao</a>, <a href="/search/nucl-ex?searchtype=author&query=Gasparian%2C+A">A. Gasparian</a>, <a href="/search/nucl-ex?searchtype=author&query=Hague%2C+T+J">T. J. Hague</a>, <a href="/search/nucl-ex?searchtype=author&query=Liyanage%2C+N">N. Liyanage</a>, <a href="/search/nucl-ex?searchtype=author&query=Paremuzyan%2C+R">R. Paremuzyan</a>, <a href="/search/nucl-ex?searchtype=author&query=Peng%2C+C">C. Peng</a>, <a href="/search/nucl-ex?searchtype=author&query=Xiong%2C+W">W. Xiong</a>, <a href="/search/nucl-ex?searchtype=author&query=Achenbach%2C+P">P. Achenbach</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahmidouch%2C+A">A. Ahmidouch</a>, <a href="/search/nucl-ex?searchtype=author&query=Ali%2C+S">S. Ali</a>, <a href="/search/nucl-ex?searchtype=author&query=Avakian%2C+H">H. Avakian</a>, <a href="/search/nucl-ex?searchtype=author&query=Ayerbe-Gayoso%2C+C">C. Ayerbe-Gayoso</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Battaglieri%2C+M">M. Battaglieri</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhatt%2C+H">H. Bhatt</a>, <a href="/search/nucl-ex?searchtype=author&query=Bianconi%2C+A">A. Bianconi</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyd%2C+J">J. Boyd</a>, <a href="/search/nucl-ex?searchtype=author&query=Byer%2C+D">D. Byer</a>, <a href="/search/nucl-ex?searchtype=author&query=Cole%2C+P+L">P. L. Cole</a>, <a href="/search/nucl-ex?searchtype=author&query=Costantini%2C+G">G. Costantini</a>, <a href="/search/nucl-ex?searchtype=author&query=Davis%2C+S">S. Davis</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Napoli%2C+M">M. De Napoli</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Vita%2C+R">R. De Vita</a>, <a href="/search/nucl-ex?searchtype=author&query=Devkota%2C+B">B. Devkota</a> , et al. (35 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="2301.08768v2-abstract-short" style="display: inline;"> A new electron scattering experiment (E12-21-003) to verify and understand the nature of hidden sector particles, with particular emphasis on the so-called X17 particle, has been approved at Jefferson Lab. The search for these particles is motivated by new hidden sector models introduced to account for a variety of experimental and observational puzzles: excess in $e^+e^-$ pairs observed in multip… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2301.08768v2-abstract-full').style.display = 'inline'; document.getElementById('2301.08768v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2301.08768v2-abstract-full" style="display: none;"> A new electron scattering experiment (E12-21-003) to verify and understand the nature of hidden sector particles, with particular emphasis on the so-called X17 particle, has been approved at Jefferson Lab. The search for these particles is motivated by new hidden sector models introduced to account for a variety of experimental and observational puzzles: excess in $e^+e^-$ pairs observed in multiple nuclear transitions, the 4.2$蟽$ disagreement between experiments and the standard model prediction for the muon anomalous magnetic moment, and the small-scale structure puzzle in cosmological simulations. The aforementioned X17 particle has been hypothesized to account for the excess in $e^+e^-$ pairs observed from the $^8$Be M1, $^4$He M0, and, most recently, $^{12}$C E1 nuclear transitions to their ground states observed by the ATOMKI group. This experiment will use a high resolution electromagnetic calorimeter to search for or set new limits on the production rate of the X17 and other hidden sector particles in the $3 - 60$ MeV mass range via their $e^+e^-$ decay (or $纬纬$ decay with limited tracking). In these models, the $1 - 100$ MeV mass range is particularly well-motivated and the lower part of this range still remains unexplored. Our proposed direct detection experiment will use a magnetic-spectrometer-free setup (the PRad apparatus) to detect all three final state particles in the visible decay of a hidden sector particle for an effective control of the background and will cover the proposed mass range in a single setting. The use of the well-demonstrated PRad setup allows for an essentially ready-to-run and uniquely cost-effective search for hidden sector particles in the $3 - 60$ MeV mass range with a sensitivity of 8.9$\times$10$^{-8}$ - 5.8$\times$10$^{-9}$ to $蔚^2$, the square of the kinetic mixing interaction constant between hidden and visible sectors. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2301.08768v2-abstract-full').style.display = 'none'; document.getElementById('2301.08768v2-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, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 20 January, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 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">6 pages, 7 figures. arXiv admin note: substantial text overlap with arXiv:2108.13276</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2208.14575">arXiv:2208.14575</a> <span> [<a href="https://arxiv.org/pdf/2208.14575">pdf</a>, <a href="https://arxiv.org/format/2208.14575">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</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.nima.2023.168238">10.1016/j.nima.2023.168238 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Detector Requirements and Simulation Results for the EIC Exclusive, Diffractive and Tagging Physics Program using the ECCE Detector Concept </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Bylinkin%2C+A">A. Bylinkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Dean%2C+C+T">C. T. Dean</a>, <a href="/search/nucl-ex?searchtype=author&query=Fegan%2C+S">S. Fegan</a>, <a href="/search/nucl-ex?searchtype=author&query=Gangadharan%2C+D">D. Gangadharan</a>, <a href="/search/nucl-ex?searchtype=author&query=Gates%2C+K">K. Gates</a>, <a href="/search/nucl-ex?searchtype=author&query=Kay%2C+S+J+D">S. J. D. Kay</a>, <a href="/search/nucl-ex?searchtype=author&query=Korover%2C+I">I. Korover</a>, <a href="/search/nucl-ex?searchtype=author&query=Li%2C+W+B">W. B. Li</a>, <a href="/search/nucl-ex?searchtype=author&query=Li%2C+X">X. Li</a>, <a href="/search/nucl-ex?searchtype=author&query=Montgomery%2C+R">R. Montgomery</a>, <a href="/search/nucl-ex?searchtype=author&query=Nguyen%2C+D">D. Nguyen</a>, <a href="/search/nucl-ex?searchtype=author&query=Penman%2C+G">G. Penman</a>, <a href="/search/nucl-ex?searchtype=author&query=Pybus%2C+J+R">J. R. Pybus</a>, <a href="/search/nucl-ex?searchtype=author&query=Santiesteban%2C+N">N. Santiesteban</a>, <a href="/search/nucl-ex?searchtype=author&query=Trotta%2C+R">R. Trotta</a>, <a href="/search/nucl-ex?searchtype=author&query=Usman%2C+A">A. Usman</a>, <a href="/search/nucl-ex?searchtype=author&query=Baker%2C+M+D">M. D. Baker</a>, <a href="/search/nucl-ex?searchtype=author&query=Frantz%2C+J">J. Frantz</a>, <a href="/search/nucl-ex?searchtype=author&query=Glazier%2C+D+I">D. I. Glazier</a>, <a href="/search/nucl-ex?searchtype=author&query=Higinbotham%2C+D+W">D. W. Higinbotham</a>, <a href="/search/nucl-ex?searchtype=author&query=Horn%2C+T">T. Horn</a>, <a href="/search/nucl-ex?searchtype=author&query=Huang%2C+J">J. Huang</a>, <a href="/search/nucl-ex?searchtype=author&query=Huber%2C+G">G. Huber</a>, <a href="/search/nucl-ex?searchtype=author&query=Reed%2C+R">R. Reed</a>, <a href="/search/nucl-ex?searchtype=author&query=Roche%2C+J">J. Roche</a> , et al. (258 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="2208.14575v2-abstract-short" style="display: inline;"> This article presents a collection of simulation studies using the ECCE detector concept in the context of the EIC's exclusive, diffractive, and tagging physics program, which aims to further explore the rich quark-gluon structure of nucleons and nuclei. To successfully execute the program, ECCE proposed to utilize the detecter system close to the beamline to ensure exclusivity and tag ion beam/fr… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2208.14575v2-abstract-full').style.display = 'inline'; document.getElementById('2208.14575v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2208.14575v2-abstract-full" style="display: none;"> This article presents a collection of simulation studies using the ECCE detector concept in the context of the EIC's exclusive, diffractive, and tagging physics program, which aims to further explore the rich quark-gluon structure of nucleons and nuclei. To successfully execute the program, ECCE proposed to utilize the detecter system close to the beamline to ensure exclusivity and tag ion beam/fragments for a particular reaction of interest. Preliminary studies confirmed the proposed technology and design satisfy the requirements. The projected physics impact results are based on the projected detector performance from the simulation at 10 or 100 fb^-1 of integrated luminosity. Additionally, a few insights on the potential 2nd Interaction Region can (IR) were also documented which could serve as a guidepost for the future development of a second EIC detector. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2208.14575v2-abstract-full').style.display = 'none'; document.getElementById('2208.14575v2-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> 6 March, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 August, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2207.10745">arXiv:2207.10745</a> <span> [<a href="https://arxiv.org/pdf/2207.10745">pdf</a>, <a href="https://arxiv.org/format/2207.10745">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> </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.107.014907">10.1103/PhysRevC.107.014907 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of $蠁$-meson production in Cu$+$Au at $\sqrt{s_{_{NN}}}=200$ GeV and U$+$U at $\sqrt{s_{_{NN}}}=193$ GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Abdulameer%2C+N+J">N. J. Abdulameer</a>, <a href="/search/nucl-ex?searchtype=author&query=Acharya%2C+U">U. Acharya</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Akimoto%2C+R">R. Akimoto</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+J">J. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Alfred%2C+M">M. Alfred</a>, <a href="/search/nucl-ex?searchtype=author&query=Alibordi%2C+M">M. Alibordi</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-ex?searchtype=author&query=Apadula%2C+N">N. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&query=Asano%2C+H">H. Asano</a>, <a href="/search/nucl-ex?searchtype=author&query=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Awes%2C+T+C">T. C. Awes</a>, <a href="/search/nucl-ex?searchtype=author&query=Azmoun%2C+B">B. Azmoun</a>, <a href="/search/nucl-ex?searchtype=author&query=Babintsev%2C+V">V. Babintsev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+M">M. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bannier%2C+B">B. Bannier</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K+N">K. N. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bathe%2C+S">S. Bathe</a>, <a href="/search/nucl-ex?searchtype=author&query=Baublis%2C+V">V. Baublis</a>, <a href="/search/nucl-ex?searchtype=author&query=Baumann%2C+C">C. Baumann</a>, <a href="/search/nucl-ex?searchtype=author&query=Baumgart%2C+S">S. Baumgart</a>, <a href="/search/nucl-ex?searchtype=author&query=Bazilevsky%2C+A">A. Bazilevsky</a> , et al. (387 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="2207.10745v2-abstract-short" style="display: inline;"> The PHENIX experiment reports systematic measurements at the Relativistic Heavy Ion Collider of $蠁$-meson production in asymmetric Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$=200 GeV and in U$+$U collisions at $\sqrt{s_{_{NN}}}$=193 GeV. Measurements were performed via the $蠁\rightarrow K^{+}K^{-}$ decay channel at midrapidity $|畏|<0.35$. Features of $蠁$-meson production measured in Cu$+$Cu, Cu$+$Au,… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2207.10745v2-abstract-full').style.display = 'inline'; document.getElementById('2207.10745v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2207.10745v2-abstract-full" style="display: none;"> The PHENIX experiment reports systematic measurements at the Relativistic Heavy Ion Collider of $蠁$-meson production in asymmetric Cu$+$Au collisions at $\sqrt{s_{_{NN}}}$=200 GeV and in U$+$U collisions at $\sqrt{s_{_{NN}}}$=193 GeV. Measurements were performed via the $蠁\rightarrow K^{+}K^{-}$ decay channel at midrapidity $|畏|<0.35$. Features of $蠁$-meson production measured in Cu$+$Cu, Cu$+$Au, Au$+$Au, and U$+$U collisions were found to not depend on the collision geometry, which was expected because the yields are averaged over the azimuthal angle and follow the expected scaling with nuclear-overlap size. The elliptic flow of the $蠁$ meson in Cu$+$Au, Au$+$Au, and U$+$U collisions scales with second-order-participant eccentricity and the length scale of the nuclear-overlap region (estimated with the number of participating nucleons). At moderate $p_T$, $蠁$-meson production measured in Cu$+$Au and U$+$U collisions is consistent with coalescence-model predictions, whereas at high $p_T$ the production is in agreement with expectations for in-medium energy loss of parent partons prior to their fragmentation. The elliptic flow for $蠁$ mesons measured in Cu$+$Au and U$+$U collisions is well described by a (2+1)D viscous-hydrodynamic model with specific-shear viscosity $畏/s=1/4蟺$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2207.10745v2-abstract-full').style.display = 'none'; document.getElementById('2207.10745v2-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> 13 January, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 July, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">412 authors from 76 institutions, 16 pages, 12 figures, 9 tables, 2012 data. v2 is version accepted for publication by Physical Review C. HEPdata for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html</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, 014907 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2207.10632">arXiv:2207.10632</a> <span> [<a href="https://arxiv.org/pdf/2207.10632">pdf</a>, <a href="https://arxiv.org/format/2207.10632">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</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 Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Open Heavy Flavor Studies for the ECCE Detector at the Electron Ion Collider </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Li%2C+X">X. Li</a>, <a href="/search/nucl-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Albataineh%2C+A">A. Albataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Amaryan%2C+M">M. Amaryan</a>, <a href="/search/nucl-ex?searchtype=author&query=Arsene%2C+I+C">I. C. Arsene</a>, <a href="/search/nucl-ex?searchtype=author&query=Gayoso%2C+C+A">C. Ayerbe Gayoso</a>, <a href="/search/nucl-ex?searchtype=author&query=Bae%2C+J">J. Bae</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Baker%2C+M+D">M. D. Baker</a>, <a href="/search/nucl-ex?searchtype=author&query=Bashkanov%2C+M">M. Bashkanov</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Benmokhtar%2C+F">F. Benmokhtar</a>, <a href="/search/nucl-ex?searchtype=author&query=Berdnikov%2C+V">V. Berdnikov</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernauer%2C+J+C">J. C. Bernauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Bock%2C+F">F. Bock</a>, <a href="/search/nucl-ex?searchtype=author&query=Boeglin%2C+W">W. Boeglin</a>, <a href="/search/nucl-ex?searchtype=author&query=Borysova%2C+M">M. Borysova</a>, <a href="/search/nucl-ex?searchtype=author&query=Brash%2C+E">E. Brash</a>, <a href="/search/nucl-ex?searchtype=author&query=Brindza%2C+P">P. Brindza</a>, <a href="/search/nucl-ex?searchtype=author&query=Briscoe%2C+W+J">W. J. Briscoe</a>, <a href="/search/nucl-ex?searchtype=author&query=Brooks%2C+M">M. Brooks</a>, <a href="/search/nucl-ex?searchtype=author&query=Bueltmann%2C+S">S. Bueltmann</a>, <a href="/search/nucl-ex?searchtype=author&query=Bukhari%2C+M+H+S">M. H. S. Bukhari</a>, <a href="/search/nucl-ex?searchtype=author&query=Bylinkin%2C+A">A. Bylinkin</a> , et al. (262 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="2207.10632v2-abstract-short" style="display: inline;"> The ECCE detector has been recommended as the selected reference detector for the future Electron-Ion Collider (EIC). A series of simulation studies have been carried out to validate the physics feasibility of the ECCE detector. In this paper, detailed studies of heavy flavor hadron and jet reconstruction and physics projections with the ECCE detector performance and different magnet options will… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2207.10632v2-abstract-full').style.display = 'inline'; document.getElementById('2207.10632v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2207.10632v2-abstract-full" style="display: none;"> The ECCE detector has been recommended as the selected reference detector for the future Electron-Ion Collider (EIC). A series of simulation studies have been carried out to validate the physics feasibility of the ECCE detector. In this paper, detailed studies of heavy flavor hadron and jet reconstruction and physics projections with the ECCE detector performance and different magnet options will be presented. The ECCE detector has enabled precise EIC heavy flavor hadron and jet measurements with a broad kinematic coverage. These proposed heavy flavor measurements will help systematically study the hadronization process in vacuum and nuclear medium especially in the underexplored kinematic region. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2207.10632v2-abstract-full').style.display = 'none'; document.getElementById('2207.10632v2-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 July, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 July, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">Open heavy flavor studies with the EIC reference detector design by the ECCE consortium. 11 pages, 11 figures, to be submitted to the Nuclear Instruments and Methods A</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LANL report number: LA-UR-22-27181 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2207.10356">arXiv:2207.10356</a> <span> [<a href="https://arxiv.org/pdf/2207.10356">pdf</a>, <a href="https://arxiv.org/format/2207.10356">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="Instrumentation and Detectors">physics.ins-det</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.nima.2022.167956">10.1016/j.nima.2022.167956 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Exclusive J/$蠄$ Detection and Physics with ECCE </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Li%2C+X">X. Li</a>, <a href="/search/nucl-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Albataineh%2C+A">A. Albataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Amaryan%2C+M">M. Amaryan</a>, <a href="/search/nucl-ex?searchtype=author&query=Arsene%2C+I+C">I. C. Arsene</a>, <a href="/search/nucl-ex?searchtype=author&query=Gayoso%2C+C+A">C. Ayerbe Gayoso</a>, <a href="/search/nucl-ex?searchtype=author&query=Bae%2C+J">J. Bae</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Baker%2C+M+D">M. D. Baker</a>, <a href="/search/nucl-ex?searchtype=author&query=Bashkanov%2C+M">M. Bashkanov</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Benmokhtar%2C+F">F. Benmokhtar</a>, <a href="/search/nucl-ex?searchtype=author&query=Berdnikov%2C+V">V. Berdnikov</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernauer%2C+J+C">J. C. Bernauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Bock%2C+F">F. Bock</a>, <a href="/search/nucl-ex?searchtype=author&query=Boeglin%2C+W">W. Boeglin</a>, <a href="/search/nucl-ex?searchtype=author&query=Borysova%2C+M">M. Borysova</a>, <a href="/search/nucl-ex?searchtype=author&query=Brash%2C+E">E. Brash</a>, <a href="/search/nucl-ex?searchtype=author&query=Brindza%2C+P">P. Brindza</a>, <a href="/search/nucl-ex?searchtype=author&query=Briscoe%2C+W+J">W. J. Briscoe</a>, <a href="/search/nucl-ex?searchtype=author&query=Brooks%2C+M">M. Brooks</a>, <a href="/search/nucl-ex?searchtype=author&query=Bueltmann%2C+S">S. Bueltmann</a>, <a href="/search/nucl-ex?searchtype=author&query=Bukhari%2C+M+H+S">M. H. S. Bukhari</a>, <a href="/search/nucl-ex?searchtype=author&query=Bylinkin%2C+A">A. Bylinkin</a> , et al. (262 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="2207.10356v1-abstract-short" style="display: inline;"> Exclusive heavy quarkonium photoproduction is one of the most popular processes in EIC, which has a large cross section and a simple final state. Due to the gluonic nature of the exchange Pomeron, this process can be related to the gluon distributions in the nucleus. The momentum transfer dependence of this process is sensitive to the interaction sites, which provides a powerful tool to probe the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2207.10356v1-abstract-full').style.display = 'inline'; document.getElementById('2207.10356v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2207.10356v1-abstract-full" style="display: none;"> Exclusive heavy quarkonium photoproduction is one of the most popular processes in EIC, which has a large cross section and a simple final state. Due to the gluonic nature of the exchange Pomeron, this process can be related to the gluon distributions in the nucleus. The momentum transfer dependence of this process is sensitive to the interaction sites, which provides a powerful tool to probe the spatial distribution of gluons in the nucleus. Recently the problem of the origin of hadron mass has received lots of attention in determining the anomaly contribution $M_{a}$. The trace anomaly is sensitive to the gluon condensate, and exclusive production of quarkonia such as J/$蠄$ and $违$ can serve as a sensitive probe to constrain it. In this paper, we present the performance of the ECCE detector for exclusive J/$蠄$ detection and the capability of this process to investigate the above physics opportunities with ECCE. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2207.10356v1-abstract-full').style.display = 'none'; document.getElementById('2207.10356v1-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 July, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">11 pages, 14 figures, 1 table</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2207.09437">arXiv:2207.09437</a> <span> [<a href="https://arxiv.org/pdf/2207.09437">pdf</a>, <a href="https://arxiv.org/format/2207.09437">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</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 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.nima.2023.168464">10.1016/j.nima.2023.168464 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Design and Simulated Performance of Calorimetry Systems for the ECCE Detector at the Electron Ion Collider </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Bock%2C+F">F. Bock</a>, <a href="/search/nucl-ex?searchtype=author&query=Schmidt%2C+N">N. Schmidt</a>, <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+P+K">P. K. Wang</a>, <a href="/search/nucl-ex?searchtype=author&query=Santiesteban%2C+N">N. Santiesteban</a>, <a href="/search/nucl-ex?searchtype=author&query=Horn%2C+T">T. Horn</a>, <a href="/search/nucl-ex?searchtype=author&query=Huang%2C+J">J. Huang</a>, <a href="/search/nucl-ex?searchtype=author&query=Lajoie%2C+J">J. Lajoie</a>, <a href="/search/nucl-ex?searchtype=author&query=Camacho%2C+C+M">C. Munoz Camacho</a>, <a href="/search/nucl-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Albataineh%2C+A">A. Albataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Amaryan%2C+M">M. Amaryan</a>, <a href="/search/nucl-ex?searchtype=author&query=Arsene%2C+I+C">I. C. Arsene</a>, <a href="/search/nucl-ex?searchtype=author&query=Gayoso%2C+C+A">C. Ayerbe Gayoso</a>, <a href="/search/nucl-ex?searchtype=author&query=Bae%2C+J">J. Bae</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Baker%2C+M+D">M. D. Baker</a>, <a href="/search/nucl-ex?searchtype=author&query=Bashkanov%2C+M">M. Bashkanov</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Benmokhtar%2C+F">F. Benmokhtar</a>, <a href="/search/nucl-ex?searchtype=author&query=Berdnikov%2C+V">V. Berdnikov</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernauer%2C+J+C">J. C. Bernauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Boeglin%2C+W">W. Boeglin</a>, <a href="/search/nucl-ex?searchtype=author&query=Borysova%2C+M">M. Borysova</a>, <a href="/search/nucl-ex?searchtype=author&query=Brash%2C+E">E. Brash</a> , et al. (263 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="2207.09437v1-abstract-short" style="display: inline;"> We describe the design and performance the calorimeter systems used in the ECCE detector design to achieve the overall performance specifications cost-effectively with careful consideration of appropriate technical and schedule risks. The calorimeter systems consist of three electromagnetic calorimeters, covering the combined pseudorapdity range from -3.7 to 3.8 and two hadronic calorimeters. Key… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2207.09437v1-abstract-full').style.display = 'inline'; document.getElementById('2207.09437v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2207.09437v1-abstract-full" style="display: none;"> We describe the design and performance the calorimeter systems used in the ECCE detector design to achieve the overall performance specifications cost-effectively with careful consideration of appropriate technical and schedule risks. The calorimeter systems consist of three electromagnetic calorimeters, covering the combined pseudorapdity range from -3.7 to 3.8 and two hadronic calorimeters. Key calorimeter performances which include energy and position resolutions, reconstruction efficiency, and particle identification will be presented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2207.09437v1-abstract-full').style.display = 'none'; document.getElementById('2207.09437v1-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, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">19 pages, 22 figures, 5 tables</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2205.09185">arXiv:2205.09185</a> <span> [<a href="https://arxiv.org/pdf/2205.09185">pdf</a>, <a href="https://arxiv.org/format/2205.09185">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Machine Learning">cs.LG</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 Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-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/10.1016/j.nima.2022.167748">10.1016/j.nima.2022.167748 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> AI-assisted Optimization of the ECCE Tracking System at the Electron Ion Collider </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Fanelli%2C+C">C. Fanelli</a>, <a href="/search/nucl-ex?searchtype=author&query=Papandreou%2C+Z">Z. Papandreou</a>, <a href="/search/nucl-ex?searchtype=author&query=Suresh%2C+K">K. Suresh</a>, <a href="/search/nucl-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Albataineh%2C+A">A. Albataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Amaryan%2C+M">M. Amaryan</a>, <a href="/search/nucl-ex?searchtype=author&query=Arsene%2C+I+C">I. C. Arsene</a>, <a href="/search/nucl-ex?searchtype=author&query=Gayoso%2C+C+A">C. Ayerbe Gayoso</a>, <a href="/search/nucl-ex?searchtype=author&query=Bae%2C+J">J. Bae</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Baker%2C+M+D">M. D. Baker</a>, <a href="/search/nucl-ex?searchtype=author&query=Bashkanov%2C+M">M. Bashkanov</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Benmokhtar%2C+F">F. Benmokhtar</a>, <a href="/search/nucl-ex?searchtype=author&query=Berdnikov%2C+V">V. Berdnikov</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernauer%2C+J+C">J. C. Bernauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Bock%2C+F">F. Bock</a>, <a href="/search/nucl-ex?searchtype=author&query=Boeglin%2C+W">W. Boeglin</a>, <a href="/search/nucl-ex?searchtype=author&query=Borysova%2C+M">M. Borysova</a>, <a href="/search/nucl-ex?searchtype=author&query=Brash%2C+E">E. Brash</a>, <a href="/search/nucl-ex?searchtype=author&query=Brindza%2C+P">P. Brindza</a>, <a href="/search/nucl-ex?searchtype=author&query=Briscoe%2C+W+J">W. J. Briscoe</a>, <a href="/search/nucl-ex?searchtype=author&query=Brooks%2C+M">M. Brooks</a>, <a href="/search/nucl-ex?searchtype=author&query=Bueltmann%2C+S">S. Bueltmann</a> , et al. (258 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="2205.09185v2-abstract-short" style="display: inline;"> The Electron-Ion Collider (EIC) is a cutting-edge accelerator facility that will study the nature of the "glue" that binds the building blocks of the visible matter in the universe. The proposed experiment will be realized at Brookhaven National Laboratory in approximately 10 years from now, with detector design and R&D currently ongoing. Notably, EIC is one of the first large-scale facilities to… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2205.09185v2-abstract-full').style.display = 'inline'; document.getElementById('2205.09185v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2205.09185v2-abstract-full" style="display: none;"> The Electron-Ion Collider (EIC) is a cutting-edge accelerator facility that will study the nature of the "glue" that binds the building blocks of the visible matter in the universe. The proposed experiment will be realized at Brookhaven National Laboratory in approximately 10 years from now, with detector design and R&D currently ongoing. Notably, EIC is one of the first large-scale facilities to leverage Artificial Intelligence (AI) already starting from the design and R&D phases. The EIC Comprehensive Chromodynamics Experiment (ECCE) is a consortium that proposed a detector design based on a 1.5T solenoid. The EIC detector proposal review concluded that the ECCE design will serve as the reference design for an EIC detector. Herein we describe a comprehensive optimization of the ECCE tracker using AI. The work required a complex parametrization of the simulated detector system. Our approach dealt with an optimization problem in a multidimensional design space driven by multiple objectives that encode the detector performance, while satisfying several mechanical constraints. We describe our strategy and show results obtained for the ECCE tracking system. The AI-assisted design is agnostic to the simulation framework and can be extended to other sub-detectors or to a system of sub-detectors to further optimize the performance of the EIC detector. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2205.09185v2-abstract-full').style.display = 'none'; document.getElementById('2205.09185v2-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 May, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 May, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 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">16 pages, 18 figures, 2 appendices, 3 tables</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2205.08607">arXiv:2205.08607</a> <span> [<a href="https://arxiv.org/pdf/2205.08607">pdf</a>, <a href="https://arxiv.org/format/2205.08607">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</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 Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-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/10.1016/j.nima.2022.167859">10.1016/j.nima.2022.167859 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Scientific Computing Plan for the ECCE Detector at the Electron Ion Collider </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Bernauer%2C+J+C">J. C. Bernauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Dean%2C+C+T">C. T. Dean</a>, <a href="/search/nucl-ex?searchtype=author&query=Fanelli%2C+C">C. Fanelli</a>, <a href="/search/nucl-ex?searchtype=author&query=Huang%2C+J">J. Huang</a>, <a href="/search/nucl-ex?searchtype=author&query=Kauder%2C+K">K. Kauder</a>, <a href="/search/nucl-ex?searchtype=author&query=Lawrence%2C+D">D. Lawrence</a>, <a href="/search/nucl-ex?searchtype=author&query=Osborn%2C+J+D">J. D. Osborn</a>, <a href="/search/nucl-ex?searchtype=author&query=Paus%2C+C">C. Paus</a>, <a href="/search/nucl-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Albataineh%2C+A">A. Albataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Amaryan%2C+M">M. Amaryan</a>, <a href="/search/nucl-ex?searchtype=author&query=Arsene%2C+I+C">I. C. Arsene</a>, <a href="/search/nucl-ex?searchtype=author&query=Gayoso%2C+C+A">C. Ayerbe Gayoso</a>, <a href="/search/nucl-ex?searchtype=author&query=Bae%2C+J">J. Bae</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Baker%2C+M+D">M. D. Baker</a>, <a href="/search/nucl-ex?searchtype=author&query=Bashkanov%2C+M">M. Bashkanov</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Benmokhtar%2C+F">F. Benmokhtar</a>, <a href="/search/nucl-ex?searchtype=author&query=Berdnikov%2C+V">V. Berdnikov</a>, <a href="/search/nucl-ex?searchtype=author&query=Bock%2C+F">F. Bock</a>, <a href="/search/nucl-ex?searchtype=author&query=Boeglin%2C+W">W. Boeglin</a>, <a href="/search/nucl-ex?searchtype=author&query=Borysova%2C+M">M. Borysova</a>, <a href="/search/nucl-ex?searchtype=author&query=Brash%2C+E">E. Brash</a> , et al. (256 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="2205.08607v1-abstract-short" style="display: inline;"> The Electron Ion Collider (EIC) is the next generation of precision QCD facility to be built at Brookhaven National Laboratory in conjunction with Thomas Jefferson National Laboratory. There are a significant number of software and computing challenges that need to be overcome at the EIC. During the EIC detector proposal development period, the ECCE consortium began identifying and addressing thes… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2205.08607v1-abstract-full').style.display = 'inline'; document.getElementById('2205.08607v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2205.08607v1-abstract-full" style="display: none;"> The Electron Ion Collider (EIC) is the next generation of precision QCD facility to be built at Brookhaven National Laboratory in conjunction with Thomas Jefferson National Laboratory. There are a significant number of software and computing challenges that need to be overcome at the EIC. During the EIC detector proposal development period, the ECCE consortium began identifying and addressing these challenges in the process of producing a complete detector proposal based upon detailed detector and physics simulations. In this document, the software and computing efforts to produce this proposal are discussed; furthermore, the computing and software model and resources required for the future of ECCE are described. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2205.08607v1-abstract-full').style.display = 'none'; document.getElementById('2205.08607v1-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 May, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> NIMA 1047, 167859 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2203.02309">arXiv:2203.02309</a> <span> [<a href="https://arxiv.org/pdf/2203.02309">pdf</a>, <a href="https://arxiv.org/format/2203.02309">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Cosmology and Nongalactic Astrophysics">astro-ph.CO</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 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/10.1088/1361-6471/ac841a">10.1088/1361-6471/ac841a <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A Next-Generation Liquid Xenon Observatory for Dark Matter and Neutrino Physics </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Aalbers%2C+J">J. Aalbers</a>, <a href="/search/nucl-ex?searchtype=author&query=Abe%2C+K">K. Abe</a>, <a href="/search/nucl-ex?searchtype=author&query=Aerne%2C+V">V. Aerne</a>, <a href="/search/nucl-ex?searchtype=author&query=Agostini%2C+F">F. Agostini</a>, <a href="/search/nucl-ex?searchtype=author&query=Maouloud%2C+S+A">S. Ahmed Maouloud</a>, <a href="/search/nucl-ex?searchtype=author&query=Akerib%2C+D+S">D. S. Akerib</a>, <a href="/search/nucl-ex?searchtype=author&query=Akimov%2C+D+Y">D. Yu. Akimov</a>, <a href="/search/nucl-ex?searchtype=author&query=Akshat%2C+J">J. Akshat</a>, <a href="/search/nucl-ex?searchtype=author&query=Musalhi%2C+A+K+A">A. K. Al Musalhi</a>, <a href="/search/nucl-ex?searchtype=author&query=Alder%2C+F">F. Alder</a>, <a href="/search/nucl-ex?searchtype=author&query=Alsum%2C+S+K">S. K. Alsum</a>, <a href="/search/nucl-ex?searchtype=author&query=Althueser%2C+L">L. Althueser</a>, <a href="/search/nucl-ex?searchtype=author&query=Amarasinghe%2C+C+S">C. S. Amarasinghe</a>, <a href="/search/nucl-ex?searchtype=author&query=Amaro%2C+F+D">F. D. Amaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Ames%2C+A">A. Ames</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+T+J">T. J. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrieu%2C+B">B. Andrieu</a>, <a href="/search/nucl-ex?searchtype=author&query=Angelides%2C+N">N. Angelides</a>, <a href="/search/nucl-ex?searchtype=author&query=Angelino%2C+E">E. Angelino</a>, <a href="/search/nucl-ex?searchtype=author&query=Angevaare%2C+J">J. Angevaare</a>, <a href="/search/nucl-ex?searchtype=author&query=Antochi%2C+V+C">V. C. Antochi</a>, <a href="/search/nucl-ex?searchtype=author&query=Martin%2C+D+A">D. Ant贸n Martin</a>, <a href="/search/nucl-ex?searchtype=author&query=Antunovic%2C+B">B. Antunovic</a>, <a href="/search/nucl-ex?searchtype=author&query=Aprile%2C+E">E. Aprile</a>, <a href="/search/nucl-ex?searchtype=author&query=Ara%C3%BAjo%2C+H+M">H. M. Ara煤jo</a> , et al. (572 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="2203.02309v1-abstract-short" style="display: inline;"> The nature of dark matter and properties of neutrinos are among the most pressing issues in contemporary particle physics. The dual-phase xenon time-projection chamber is the leading technology to cover the available parameter space for Weakly Interacting Massive Particles (WIMPs), while featuring extensive sensitivity to many alternative dark matter candidates. These detectors can also study neut… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.02309v1-abstract-full').style.display = 'inline'; document.getElementById('2203.02309v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2203.02309v1-abstract-full" style="display: none;"> The nature of dark matter and properties of neutrinos are among the most pressing issues in contemporary particle physics. The dual-phase xenon time-projection chamber is the leading technology to cover the available parameter space for Weakly Interacting Massive Particles (WIMPs), while featuring extensive sensitivity to many alternative dark matter candidates. These detectors can also study neutrinos through neutrinoless double-beta decay and through a variety of astrophysical sources. A next-generation xenon-based detector will therefore be a true multi-purpose observatory to significantly advance particle physics, nuclear physics, astrophysics, solar physics, and cosmology. This review article presents the science cases for such a detector. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.02309v1-abstract-full').style.display = 'none'; document.getElementById('2203.02309v1-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 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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">77 pages, 40 figures, 1262 references</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> INT-PUB-22-003 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> J. Phys. G: Nucl. Part. Phys. 50 (2023) 013001 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2201.03714">arXiv:2201.03714</a> <span> [<a href="https://arxiv.org/pdf/2201.03714">pdf</a>, <a href="https://arxiv.org/format/2201.03714">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 - Phenomenology">hep-ph</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 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/PhysRevLett.128.252002">10.1103/PhysRevLett.128.252002 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Deeply virtual Compton scattering cross section at high Bjorken $x_B$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Georges%2C+F">F. Georges</a>, <a href="/search/nucl-ex?searchtype=author&query=Rashad%2C+M+N+H">M. N. H. Rashad</a>, <a href="/search/nucl-ex?searchtype=author&query=Stefanko%2C+A">A. Stefanko</a>, <a href="/search/nucl-ex?searchtype=author&query=Dlamini%2C+M">M. Dlamini</a>, <a href="/search/nucl-ex?searchtype=author&query=Karki%2C+B">B. Karki</a>, <a href="/search/nucl-ex?searchtype=author&query=Ali%2C+S+F">S. F. Ali</a>, <a href="/search/nucl-ex?searchtype=author&query=Lin%2C+P">P-J. Lin</a>, <a href="/search/nucl-ex?searchtype=author&query=Ko%2C+H">H-S Ko</a>, <a href="/search/nucl-ex?searchtype=author&query=Israel%2C+N">N. Israel</a>, <a href="/search/nucl-ex?searchtype=author&query=Adikaram%2C+D">D. Adikaram</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahmed%2C+Z">Z. Ahmed</a>, <a href="/search/nucl-ex?searchtype=author&query=Albataineh%2C+H">H. Albataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Aljawrneh%2C+B">B. Aljawrneh</a>, <a href="/search/nucl-ex?searchtype=author&query=Allada%2C+K">K. Allada</a>, <a href="/search/nucl-ex?searchtype=author&query=Allison%2C+S">S. Allison</a>, <a href="/search/nucl-ex?searchtype=author&query=Alsalmi%2C+S">S. Alsalmi</a>, <a href="/search/nucl-ex?searchtype=author&query=Androic%2C+D">D. Androic</a>, <a href="/search/nucl-ex?searchtype=author&query=Aniol%2C+K">K. Aniol</a>, <a href="/search/nucl-ex?searchtype=author&query=Annand%2C+J">J. Annand</a>, <a href="/search/nucl-ex?searchtype=author&query=Atac%2C+H">H. Atac</a>, <a href="/search/nucl-ex?searchtype=author&query=Averett%2C+T">T. Averett</a>, <a href="/search/nucl-ex?searchtype=author&query=Gayoso%2C+C+A">C. Ayerbe Gayoso</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bane%2C+J">J. Bane</a>, <a href="/search/nucl-ex?searchtype=author&query=Barcus%2C+S">S. Barcus</a> , et al. (137 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="2201.03714v1-abstract-short" style="display: inline;"> We report high-precision measurements of the Deeply Virtual Compton Scattering (DVCS) cross section at high values of the Bjorken variable $x_B$. DVCS is sensitive to the Generalized Parton Distributions of the nucleon, which provide a three-dimensional description of its internal constituents. Using the exact analytic expression of the DVCS cross section for all possible polarization states of th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.03714v1-abstract-full').style.display = 'inline'; document.getElementById('2201.03714v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2201.03714v1-abstract-full" style="display: none;"> We report high-precision measurements of the Deeply Virtual Compton Scattering (DVCS) cross section at high values of the Bjorken variable $x_B$. DVCS is sensitive to the Generalized Parton Distributions of the nucleon, which provide a three-dimensional description of its internal constituents. Using the exact analytic expression of the DVCS cross section for all possible polarization states of the initial and final electron and nucleon, and final state photon, we present the first experimental extraction of all four helicity-conserving Compton Form Factors (CFFs) of the nucleon as a function of $x_B$, while systematically including helicity flip amplitudes. In particular, the high accuracy of the present data demonstrates sensitivity to some very poorly known CFFs. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.03714v1-abstract-full').style.display = 'none'; document.getElementById('2201.03714v1-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 January, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2111.14615">arXiv:2111.14615</a> <span> [<a href="https://arxiv.org/pdf/2111.14615">pdf</a>, <a href="https://arxiv.org/format/2111.14615">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> </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/s10052-022-11003-7">10.1140/epjc/s10052-022-11003-7 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Evidence of Mass Ordering of Charm and Bottom Quark Energy Loss in Au+Au Collisions at RHIC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdallah%2C+M+S">M. S. Abdallah</a>, <a href="/search/nucl-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Baker%2C+W">W. Baker</a>, <a href="/search/nucl-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Brandenburg%2C+J+D">J. D. Brandenburg</a> , et al. (350 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="2111.14615v4-abstract-short" style="display: inline;"> Partons traversing the strongly interacting medium produced in heavy-ion collisions are expected to lose energy depending on their color charge and mass. We measure the nuclear modification factors for charm- and bottom-decay electrons, defined as the ratio of yields, scaled by the number of binary nucleon-nucleon collisions, in $\sqrt{s_{\rm NN}}$ = 200 GeV Au+Au collisions to $p$+$p$ collisions… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.14615v4-abstract-full').style.display = 'inline'; document.getElementById('2111.14615v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2111.14615v4-abstract-full" style="display: none;"> Partons traversing the strongly interacting medium produced in heavy-ion collisions are expected to lose energy depending on their color charge and mass. We measure the nuclear modification factors for charm- and bottom-decay electrons, defined as the ratio of yields, scaled by the number of binary nucleon-nucleon collisions, in $\sqrt{s_{\rm NN}}$ = 200 GeV Au+Au collisions to $p$+$p$ collisions ($R_{\rm AA}$), or in central to peripheral Au+Au collisions ($R_{\rm CP}$). We find the bottom-decay electron $R_{\rm AA}$ and $R_{\rm CP}$ to be significantly higher than that of charm-decay electrons. Model calculations including mass-dependent parton energy loss in a strongly coupled medium are consistent with the measured data. These observations provide clear evidence of mass ordering of charm and bottom quark energy loss when traversing through the strongly coupled medium created in heavy-ion collisions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.14615v4-abstract-full').style.display = 'none'; document.getElementById('2111.14615v4-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 April, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 29 November, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2021. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2108.13276">arXiv:2108.13276</a> <span> [<a href="https://arxiv.org/pdf/2108.13276">pdf</a>, <a href="https://arxiv.org/format/2108.13276">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="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> A Direct Detection Search for Hidden Sector New Particles in the 3-60 MeV Mass Range </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Ahmidouch%2C+A">A. Ahmidouch</a>, <a href="/search/nucl-ex?searchtype=author&query=Davis%2C+S">S. Davis</a>, <a href="/search/nucl-ex?searchtype=author&query=Gasparian%2C+A">A. Gasparian</a>, <a href="/search/nucl-ex?searchtype=author&query=Hague%2C+T+J">T. J. Hague</a>, <a href="/search/nucl-ex?searchtype=author&query=Mtingwa%2C+S">S. Mtingwa</a>, <a href="/search/nucl-ex?searchtype=author&query=Pedroni%2C+R">R. Pedroni</a>, <a href="/search/nucl-ex?searchtype=author&query=Ayerbe-Gayoso%2C+C">C. Ayerbe-Gayoso</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhatt%2C+H">H. Bhatt</a>, <a href="/search/nucl-ex?searchtype=author&query=Devkota%2C+B">B. Devkota</a>, <a href="/search/nucl-ex?searchtype=author&query=Dunne%2C+J">J. Dunne</a>, <a href="/search/nucl-ex?searchtype=author&query=Dutta%2C+D">D. Dutta</a>, <a href="/search/nucl-ex?searchtype=author&query=Fassi%2C+L+E">L. El Fassi</a>, <a href="/search/nucl-ex?searchtype=author&query=Karki%2C+A">A. Karki</a>, <a href="/search/nucl-ex?searchtype=author&query=Mohanmurthy%2C+P">P. Mohanmurthy</a>, <a href="/search/nucl-ex?searchtype=author&query=Peng%2C+C">C. Peng</a>, <a href="/search/nucl-ex?searchtype=author&query=Ali%2C+S">S. Ali</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyd%2C+J">J. Boyd</a>, <a href="/search/nucl-ex?searchtype=author&query=Dharmasena%2C+B">B. Dharmasena</a>, <a href="/search/nucl-ex?searchtype=author&query=Gamage%2C+V">V. Gamage</a>, <a href="/search/nucl-ex?searchtype=author&query=Gnanvo%2C+K">K. Gnanvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Jeffas%2C+S">S. Jeffas</a>, <a href="/search/nucl-ex?searchtype=author&query=Jian%2C+S">S. Jian</a>, <a href="/search/nucl-ex?searchtype=author&query=Liyanage%2C+N">N. Liyanage</a>, <a href="/search/nucl-ex?searchtype=author&query=Nguyen%2C+H">H. Nguyen</a> , et al. (36 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="2108.13276v3-abstract-short" style="display: inline;"> In our quest to understand the nature of dark matter and discover its non-gravitational interactions with ordinary matter, we propose an experiment using a \pbo ~calorimeter to search for or set new limits on the production rate of i) hidden sector particles in the $3 - 60$ MeV mass range via their $e^+e^-$ decay (or $纬纬$ decay with limited tracking), and ii) the hypothetical X17 particle, claimed… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.13276v3-abstract-full').style.display = 'inline'; document.getElementById('2108.13276v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2108.13276v3-abstract-full" style="display: none;"> In our quest to understand the nature of dark matter and discover its non-gravitational interactions with ordinary matter, we propose an experiment using a \pbo ~calorimeter to search for or set new limits on the production rate of i) hidden sector particles in the $3 - 60$ MeV mass range via their $e^+e^-$ decay (or $纬纬$ decay with limited tracking), and ii) the hypothetical X17 particle, claimed in multiple recent experiments. The search for these particles is motivated by new hidden sector models and dark matter candidates introduced to account for a variety of experimental and observational puzzles: the small-scale structure puzzle in cosmological simulations, anomalies such as the 4.2$蟽$ disagreement between experiments and the standard model prediction for the muon anomalous magnetic moment, and the excess of $e^+e^-$ pairs from the $^8$Be M1 and $^4$He nuclear transitions to their ground states observed by the ATOMKI group. In these models, the $1 - 100$ MeV mass range is particularly well-motivated and the lower part of this range still remains unexplored. Our proposed direct detection experiment will use a magnetic-spectrometer-free setup (the PRad apparatus) to detect all three final state particles in the visible decay of a hidden sector particle allowing for an effective control of the background and will cover the proposed mass range in a single setting. The use of the well-demonstrated PRad setup allows for an essentially ready-to-run and uniquely cost-effective search for hidden sector particles in the $3 - 60$ MeV mass range with a sensitivity of 8.9$\times$10$^{-8}$ - 5.8$\times$10$^{-9}$ to $蔚^2$, the square of the kinetic mixing interaction constant between hidden and visible sectors. This updated proposal includes our response to the PAC49 comments. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.13276v3-abstract-full').style.display = 'none'; document.getElementById('2108.13276v3-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 August, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 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">47 pages, 44 Figures. JLab PAC50 Proposal</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> PR12-21-003 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2104.13374">arXiv:2104.13374</a> <span> [<a href="https://arxiv.org/pdf/2104.13374">pdf</a>, <a href="https://arxiv.org/format/2104.13374">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</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/PhysRevC.104.065501">10.1103/PhysRevC.104.065501 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Projected sensitivity of the LUX-ZEPLIN (LZ) experiment to the two-neutrino and neutrinoless double beta decays of $^{134}$Xe </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=LUX-ZEPLIN%2C+T">The LUX-ZEPLIN</a>, <a href="/search/nucl-ex?searchtype=author&query=Collaboration"> Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/nucl-ex?searchtype=author&query=Akerib%2C+D+S">D. S. Akerib</a>, <a href="/search/nucl-ex?searchtype=author&query=Musalhi%2C+A+K+A">A. K. Al Musalhi</a>, <a href="/search/nucl-ex?searchtype=author&query=Alsum%2C+S+K">S. K. Alsum</a>, <a href="/search/nucl-ex?searchtype=author&query=Amarasinghe%2C+C+S">C. S. Amarasinghe</a>, <a href="/search/nucl-ex?searchtype=author&query=Ames%2C+A">A. Ames</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+T+J">T. J. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Angelides%2C+N">N. Angelides</a>, <a href="/search/nucl-ex?searchtype=author&query=Araujo%2C+H+M">H. M. Araujo</a>, <a href="/search/nucl-ex?searchtype=author&query=Armstrong%2C+J+E">J. E. Armstrong</a>, <a href="/search/nucl-ex?searchtype=author&query=Arthurs%2C+M">M. Arthurs</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Balajthy%2C+J">J. Balajthy</a>, <a href="/search/nucl-ex?searchtype=author&query=Balashov%2C+S">S. Balashov</a>, <a href="/search/nucl-ex?searchtype=author&query=Bang%2C+J">J. Bang</a>, <a href="/search/nucl-ex?searchtype=author&query=Bargemann%2C+J+W">J. W. Bargemann</a>, <a href="/search/nucl-ex?searchtype=author&query=Bauer%2C+D">D. Bauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Baxter%2C+A">A. Baxter</a>, <a href="/search/nucl-ex?searchtype=author&query=Beltrame%2C+P">P. Beltrame</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernard%2C+E+P">E. P. Bernard</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernstein%2C+A">A. Bernstein</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhatti%2C+A">A. Bhatti</a>, <a href="/search/nucl-ex?searchtype=author&query=Biekert%2C+A">A. Biekert</a> , et al. (172 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="2104.13374v3-abstract-short" style="display: inline;"> The projected sensitivity of the LUX-ZEPLIN (LZ) experiment to two-neutrino and neutrinoless double beta decay of $^{134}$Xe is presented. LZ is a 10-tonne xenon time projection chamber optimized for the detection of dark matter particles, that is expected to start operating in 2021 at Sanford Underground Research Facility, USA. Its large mass of natural xenon provides an exceptional opportunity t… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2104.13374v3-abstract-full').style.display = 'inline'; document.getElementById('2104.13374v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2104.13374v3-abstract-full" style="display: none;"> The projected sensitivity of the LUX-ZEPLIN (LZ) experiment to two-neutrino and neutrinoless double beta decay of $^{134}$Xe is presented. LZ is a 10-tonne xenon time projection chamber optimized for the detection of dark matter particles, that is expected to start operating in 2021 at Sanford Underground Research Facility, USA. Its large mass of natural xenon provides an exceptional opportunity to search for the double beta decay of $^{134}$Xe, for which xenon detectors enriched in $^{136}$Xe are less effective. For the two-neutrino decay mode, LZ is predicted to exclude values of the half-life up to 1.7$\times$10$^{24}$ years at 90% confidence level (CL), and has a three-sigma observation potential of 8.7$\times$10$^{23}$ years, approaching the predictions of nuclear models. For the neutrinoless decay mode LZ, is projected to exclude values of the half-life up to 7.3$\times$10$^{24}$ years at 90% CL. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2104.13374v3-abstract-full').style.display = 'none'; document.getElementById('2104.13374v3-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 November, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 April, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 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 accepted for publication in Phys. Rev. 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/2103.01842">arXiv:2103.01842</a> <span> [<a href="https://arxiv.org/pdf/2103.01842">pdf</a>, <a href="https://arxiv.org/format/2103.01842">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/PhysRevLett.128.102002">10.1103/PhysRevLett.128.102002 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Form Factors and Two-Photon Exchange in High-Energy Elastic Electron-Proton Scattering </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Christy%2C+M+E">M. E. Christy</a>, <a href="/search/nucl-ex?searchtype=author&query=Gautam%2C+T">T. Gautam</a>, <a href="/search/nucl-ex?searchtype=author&query=Ou%2C+L">L. Ou</a>, <a href="/search/nucl-ex?searchtype=author&query=Schmookler%2C+B">B. Schmookler</a>, <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+Y">Y. Wang</a>, <a href="/search/nucl-ex?searchtype=author&query=Adikaram%2C+D">D. Adikaram</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahmed%2C+Z">Z. Ahmed</a>, <a href="/search/nucl-ex?searchtype=author&query=Albataineh%2C+H">H. Albataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Ali%2C+S+F">S. F. Ali</a>, <a href="/search/nucl-ex?searchtype=author&query=Aljawrneh%2C+B">B. Aljawrneh</a>, <a href="/search/nucl-ex?searchtype=author&query=Allada%2C+K">K. Allada</a>, <a href="/search/nucl-ex?searchtype=author&query=Allison%2C+S+L">S. L. Allison</a>, <a href="/search/nucl-ex?searchtype=author&query=Alsalmi%2C+S">S. Alsalmi</a>, <a href="/search/nucl-ex?searchtype=author&query=Androic%2C+D">D. Androic</a>, <a href="/search/nucl-ex?searchtype=author&query=Aniol%2C+K">K. Aniol</a>, <a href="/search/nucl-ex?searchtype=author&query=Annand%2C+J">J. Annand</a>, <a href="/search/nucl-ex?searchtype=author&query=Arrington%2C+J">J. Arrington</a>, <a href="/search/nucl-ex?searchtype=author&query=Atac%2C+H">H. Atac</a>, <a href="/search/nucl-ex?searchtype=author&query=Averett%2C+T">T. Averett</a>, <a href="/search/nucl-ex?searchtype=author&query=Gayoso%2C+C+A">C. Ayerbe Gayoso</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bane%2C+J">J. Bane</a>, <a href="/search/nucl-ex?searchtype=author&query=Barcus%2C+S">S. Barcus</a>, <a href="/search/nucl-ex?searchtype=author&query=Bartlett%2C+K">K. Bartlett</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellini%2C+V">V. Bellini</a> , et al. (145 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="2103.01842v3-abstract-short" style="display: inline;"> We present new precision measurements of the elastic electron-proton scattering cross section for momentum transfer (Q$^2$) up to 15.75~\gevsq. Combined with existing data, these provide an improved extraction of the proton magnetic form factor at high Q$^2$ and double the range over which a longitudinal/transverse separation of the cross section can be performed. The difference between our result… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2103.01842v3-abstract-full').style.display = 'inline'; document.getElementById('2103.01842v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2103.01842v3-abstract-full" style="display: none;"> We present new precision measurements of the elastic electron-proton scattering cross section for momentum transfer (Q$^2$) up to 15.75~\gevsq. Combined with existing data, these provide an improved extraction of the proton magnetic form factor at high Q$^2$ and double the range over which a longitudinal/transverse separation of the cross section can be performed. The difference between our results and polarization data agrees with that observed at lower Q$^2$ and attributed to hard two-photon exchange (TPE) effects, extending to 8~(GeV/c)$^2$ the range of Q$^2$ for which a discrepancy is established at $>$95\% confidence. We use the discrepancy to quantify the size of TPE contributions needed to explain the cross section at high Q$^2$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2103.01842v3-abstract-full').style.display = 'none'; document.getElementById('2103.01842v3-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 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 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">7 pages, 2 figures</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, 102002 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2103.01749">arXiv:2103.01749</a> <span> [<a href="https://arxiv.org/pdf/2103.01749">pdf</a>, <a href="https://arxiv.org/format/2103.01749">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</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.nima.2021.165300">10.1016/j.nima.2021.165300 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The PRad Windowless Gas Flow Target </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Pierce%2C+J">J. Pierce</a>, <a href="/search/nucl-ex?searchtype=author&query=Brock%2C+J">J. Brock</a>, <a href="/search/nucl-ex?searchtype=author&query=Carlin%2C+C">C. Carlin</a>, <a href="/search/nucl-ex?searchtype=author&query=Keith%2C+C">C. Keith</a>, <a href="/search/nucl-ex?searchtype=author&query=Maxwell%2C+J">J. Maxwell</a>, <a href="/search/nucl-ex?searchtype=author&query=Meekins%2C+D">D. Meekins</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Deur%2C+A">A. Deur</a>, <a href="/search/nucl-ex?searchtype=author&query=Dutta%2C+D">D. Dutta</a>, <a href="/search/nucl-ex?searchtype=author&query=Gao%2C+H">H. Gao</a>, <a href="/search/nucl-ex?searchtype=author&query=Gasparian%2C+A">A. Gasparian</a>, <a href="/search/nucl-ex?searchtype=author&query=Gnanvo%2C+K">K. Gnanvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Gu%2C+C">C. Gu</a>, <a href="/search/nucl-ex?searchtype=author&query=Higinbotham%2C+D">D. Higinbotham</a>, <a href="/search/nucl-ex?searchtype=author&query=Khandaker%2C+M">M. Khandaker</a>, <a href="/search/nucl-ex?searchtype=author&query=Liyanage%2C+N">N. Liyanage</a>, <a href="/search/nucl-ex?searchtype=author&query=Meziane%2C+M">M. Meziane</a>, <a href="/search/nucl-ex?searchtype=author&query=Pasyuk%2C+E">E. Pasyuk</a>, <a href="/search/nucl-ex?searchtype=author&query=Peng%2C+C">C. Peng</a>, <a href="/search/nucl-ex?searchtype=author&query=Punjabi%2C+V">V. Punjabi</a>, <a href="/search/nucl-ex?searchtype=author&query=Xiong%2C+W">W. Xiong</a>, <a href="/search/nucl-ex?searchtype=author&query=Yan%2C+X">X. Yan</a>, <a href="/search/nucl-ex?searchtype=author&query=Ye%2C+L">L. Ye</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhang%2C+Y">Y Zhang</a> </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="2103.01749v1-abstract-short" style="display: inline;"> We report on a windowless, high-density, gas flow target at Jefferson Lab that was used to measure $r_p$, the root-mean-square charge radius of the proton. To our knowledge, this is the first such system used in a fixed-target experiment at a (non-storage ring) electron accelerator. The target achieved its design goal of an areal density of 2$\times$10$^{18}$ atoms/cm$^2$, with the gas uniformly d… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2103.01749v1-abstract-full').style.display = 'inline'; document.getElementById('2103.01749v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2103.01749v1-abstract-full" style="display: none;"> We report on a windowless, high-density, gas flow target at Jefferson Lab that was used to measure $r_p$, the root-mean-square charge radius of the proton. To our knowledge, this is the first such system used in a fixed-target experiment at a (non-storage ring) electron accelerator. The target achieved its design goal of an areal density of 2$\times$10$^{18}$ atoms/cm$^2$, with the gas uniformly distributed over the 4 cm length of the cell and less than 1% residual gas outside the cell. This design eliminated scattering from the end caps of the target cell, a problem endemic to previous measurements of the proton charge radius in electron scattering experiments, and permitted a precise, model-independent extraction of $r_p$ by reaching unprecedentedly low values of $Q^2$, the square of the electron's transfer of four-momentum to the proton. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2103.01749v1-abstract-full').style.display = 'none'; document.getElementById('2103.01749v1-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 March, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2021. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2102.11449">arXiv:2102.11449</a> <span> [<a href="https://arxiv.org/pdf/2102.11449">pdf</a>, <a href="https://arxiv.org/format/2102.11449">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> </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/epja/s10050-021-00508-6">10.1140/epja/s10050-021-00508-6 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Elastic Positron-Proton Scattering at Low Q$^2$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Hague%2C+T+J">Tyler J. Hague</a>, <a href="/search/nucl-ex?searchtype=author&query=Dutta%2C+D">Dipangkar Dutta</a>, <a href="/search/nucl-ex?searchtype=author&query=Higinbotham%2C+D+W">Douglas W. Higinbotham</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">Xinzhan Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Gao%2C+H">Haiyan Gao</a>, <a href="/search/nucl-ex?searchtype=author&query=Gasparian%2C+A">Ashot Gasparian</a>, <a href="/search/nucl-ex?searchtype=author&query=Gnanvo%2C+K">Kondo Gnanvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Khachatryan%2C+V">Vladimir Khachatryan</a>, <a href="/search/nucl-ex?searchtype=author&query=Khandaker%2C+M">Mahbub Khandaker</a>, <a href="/search/nucl-ex?searchtype=author&query=Liyanage%2C+N">Nilanga Liyanage</a>, <a href="/search/nucl-ex?searchtype=author&query=Pasyuk%2C+E">Eugene Pasyuk</a>, <a href="/search/nucl-ex?searchtype=author&query=Peng%2C+C">Chao Peng</a>, <a href="/search/nucl-ex?searchtype=author&query=Xiong%2C+W">Weizhi Xiong</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhou%2C+J">Jingyi Zhou</a> </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="2102.11449v2-abstract-short" style="display: inline;"> Systematic differences in the the proton's charge radius, as determined by ordinary atoms and muonic atoms, have caused a resurgence of interest in elastic lepton scattering measurements. The proton's charge radius, defined as the slope of the charge form factor at Q$^2$=0, does not depend on the probe. Any difference in the apparent size of the proton, when determined from ordinary versus muonic… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2102.11449v2-abstract-full').style.display = 'inline'; document.getElementById('2102.11449v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2102.11449v2-abstract-full" style="display: none;"> Systematic differences in the the proton's charge radius, as determined by ordinary atoms and muonic atoms, have caused a resurgence of interest in elastic lepton scattering measurements. The proton's charge radius, defined as the slope of the charge form factor at Q$^2$=0, does not depend on the probe. Any difference in the apparent size of the proton, when determined from ordinary versus muonic hydrogen, could point to new physics or need for the higher order corrections. While recent measurements seem to now be in agreement, there is to date no high precision elastic scattering data with both electrons and positrons. A high precision proton radius measurement could be performed in Hall B at Jefferson Lab with a positron beam and the calorimeter based setup of the PRad experiment. This measurement could also be extended to deuterons where a similar discrepancy has been observed between the muonic and electronic determination of deuteron charge radius. A new, high precision measurement with positrons, when viewed alongside electron scattering measurements and the forthcoming MUSE muon scattering measurement, could help provide new insights into the origins of the proton radius puzzle, and also provide new experimental constraints on radiative correction calculations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2102.11449v2-abstract-full').style.display = 'none'; document.getElementById('2102.11449v2-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 July, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 February, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 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, 8 figures. arXiv admin note: substantial text overlap with arXiv:2007.15081</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. A 57, 199 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2011.11125">arXiv:2011.11125</a> <span> [<a href="https://arxiv.org/pdf/2011.11125">pdf</a>, <a href="https://arxiv.org/format/2011.11125">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/PhysRevLett.127.152301">10.1103/PhysRevLett.127.152301 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Deep exclusive electroproduction of $蟺^0$ at high $Q^2$ in the quark valence regime </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=The+Jefferson+Lab+Hall+A+Collaboration"> The Jefferson Lab Hall A Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Dlamini%2C+M">M. Dlamini</a>, <a href="/search/nucl-ex?searchtype=author&query=Karki%2C+B">B. Karki</a>, <a href="/search/nucl-ex?searchtype=author&query=Ali%2C+S+F">S. F. Ali</a>, <a href="/search/nucl-ex?searchtype=author&query=Lin%2C+P">P-J. Lin</a>, <a href="/search/nucl-ex?searchtype=author&query=Georges%2C+F">F. Georges</a>, <a href="/search/nucl-ex?searchtype=author&query=Ko%2C+H">H-S Ko</a>, <a href="/search/nucl-ex?searchtype=author&query=Israel%2C+N">N. Israel</a>, <a href="/search/nucl-ex?searchtype=author&query=Rashad%2C+M+N+H">M. N. H. Rashad</a>, <a href="/search/nucl-ex?searchtype=author&query=Stefanko%2C+A">A. Stefanko</a>, <a href="/search/nucl-ex?searchtype=author&query=Adikaram%2C+D">D. Adikaram</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahmed%2C+Z">Z. Ahmed</a>, <a href="/search/nucl-ex?searchtype=author&query=Albataineh%2C+H">H. Albataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Aljawrneh%2C+B">B. Aljawrneh</a>, <a href="/search/nucl-ex?searchtype=author&query=Allada%2C+K">K. Allada</a>, <a href="/search/nucl-ex?searchtype=author&query=Allison%2C+S">S. Allison</a>, <a href="/search/nucl-ex?searchtype=author&query=Alsalmi%2C+S">S. Alsalmi</a>, <a href="/search/nucl-ex?searchtype=author&query=Androic%2C+D">D. Androic</a>, <a href="/search/nucl-ex?searchtype=author&query=Aniol%2C+K">K. Aniol</a>, <a href="/search/nucl-ex?searchtype=author&query=Annand%2C+J">J. Annand</a>, <a href="/search/nucl-ex?searchtype=author&query=Atac%2C+H">H. Atac</a>, <a href="/search/nucl-ex?searchtype=author&query=Averett%2C+T">T. Averett</a>, <a href="/search/nucl-ex?searchtype=author&query=Gayoso%2C+C+A">C. Ayerbe Gayoso</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bane%2C+J">J. Bane</a> , et al. (137 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="2011.11125v2-abstract-short" style="display: inline;"> We report measurements of the exclusive neutral pion electroproduction cross section off protons at large values of $x_B$ (0.36, 0.48 and 0.60) and $Q^2$ (3.1 to 8.4 GeV$^2$) obtained from Jefferson Lab Hall A experiment E12-06-014. The corresponding structure functions $d蟽_L/dt+蔚d蟽_T/dt$, $d蟽_{TT}/dt$, $d蟽_{LT}/dt$ and $d蟽_{LT'}/dt$ are extracted as a function of the proton momentum transfer… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.11125v2-abstract-full').style.display = 'inline'; document.getElementById('2011.11125v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2011.11125v2-abstract-full" style="display: none;"> We report measurements of the exclusive neutral pion electroproduction cross section off protons at large values of $x_B$ (0.36, 0.48 and 0.60) and $Q^2$ (3.1 to 8.4 GeV$^2$) obtained from Jefferson Lab Hall A experiment E12-06-014. The corresponding structure functions $d蟽_L/dt+蔚d蟽_T/dt$, $d蟽_{TT}/dt$, $d蟽_{LT}/dt$ and $d蟽_{LT'}/dt$ are extracted as a function of the proton momentum transfer $t-t_{min}$. The results suggest the amplitude for transversely polarized virtual photons continues to dominate the cross-section throughout this kinematic range. The data are well described by calculations based on transversity Generalized Parton Distributions coupled to a helicity flip Distribution Amplitude of the pion, thus providing a unique way to probe the structure of the nucleon. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.11125v2-abstract-full').style.display = 'none'; document.getElementById('2011.11125v2-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 October, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 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">Journal ref:</span> Phys. Rev. Lett. 127, 152301 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2011.07855">arXiv:2011.07855</a> <span> [<a href="https://arxiv.org/pdf/2011.07855">pdf</a>, <a href="https://arxiv.org/ps/2011.07855">ps</a>, <a href="https://arxiv.org/format/2011.07855">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> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-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.126.102001">10.1103/PhysRevLett.126.102001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of a near-threshold structure in the $K^+$ recoil-mass spectra in $e^+e^-\to K^+ (D_s^- D^{*0} + D^{*-}_s D^0)$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/nucl-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/nucl-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/nucl-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/nucl-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/nucl-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/nucl-ex?searchtype=author&query=Anita"> Anita</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/nucl-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/nucl-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/nucl-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/nucl-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/nucl-ex?searchtype=author&query=Biernat%2C+J">J Biernat</a>, <a href="/search/nucl-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/nucl-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a> , et al. (481 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="2011.07855v2-abstract-short" style="display: inline;"> We report a study of the processes of $e^+e^-\to K^+ (D_s^- D^{*0} + D^{*-}_s D^0)$ based on $e^+e^-$ annihilation samples collected with the BESIII detector operating at BEPCII at five center-of-mass energies ranging from 4.628 to 4.698 GeV with a total integrated luminosity of 3.7 fb$^{-1}$. An excess over the known contributions of the conventional charmed mesons is observed near the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.07855v2-abstract-full').style.display = 'inline'; document.getElementById('2011.07855v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2011.07855v2-abstract-full" style="display: none;"> We report a study of the processes of $e^+e^-\to K^+ (D_s^- D^{*0} + D^{*-}_s D^0)$ based on $e^+e^-$ annihilation samples collected with the BESIII detector operating at BEPCII at five center-of-mass energies ranging from 4.628 to 4.698 GeV with a total integrated luminosity of 3.7 fb$^{-1}$. An excess over the known contributions of the conventional charmed mesons is observed near the $D_s^- D^{*0}$ and $D^{*-}_s D^0$ mass thresholds in the $K^{+}$ recoil-mass spectrum for events collected at $\sqrt{s}=4.681$ GeV. The structure matches a mass-dependent-width Breit-Wigner line shape, whose pole mass and width are determined as $(3982.5^{+1.8}_{-2.6}\pm2.1)$ MeV/$c^2$ and $(12.8^{+5.3}_{-4.4}\pm3.0)$ MeV, respectively. The first uncertainties are statistical and the second are systematic. The significance of the resonance hypothesis is estimated to be 5.3 $蟽$ over the contributions only from the conventional charmed mesons. This is the first candidate of the charged hidden-charm tetraquark with strangeness, decaying into $D_s^- D^{*0}$ and $D^{*-}_s D^0$. However, the properties of the excess need further exploration with more statistics. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.07855v2-abstract-full').style.display = 'none'; document.getElementById('2011.07855v2-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 March, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 16 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">17 pages; Version published in Phys. Rev. Lett</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 126, 102001 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2010.09003">arXiv:2010.09003</a> <span> [<a href="https://arxiv.org/pdf/2010.09003">pdf</a>, <a href="https://arxiv.org/format/2010.09003">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 - 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.103.024002">10.1103/PhysRevC.103.024002 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Advanced extraction of the deuteron charge radius from electron-deuteron scattering data </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Zhou%2C+J">Jingyi Zhou</a>, <a href="/search/nucl-ex?searchtype=author&query=Khachatryan%2C+V">Vladimir Khachatryan</a>, <a href="/search/nucl-ex?searchtype=author&query=Gao%2C+H">Haiyan Gao</a>, <a href="/search/nucl-ex?searchtype=author&query=Higinbotham%2C+D+W">Douglas W. Higinbotham</a>, <a href="/search/nucl-ex?searchtype=author&query=Parker%2C+A">Asia Parker</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">Xinzhan Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Dutta%2C+D">Dipangkar Dutta</a>, <a href="/search/nucl-ex?searchtype=author&query=Gasparian%2C+A">Ashot Gasparian</a>, <a href="/search/nucl-ex?searchtype=author&query=Gnanvo%2C+K">Kondo Gnanvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Khandaker%2C+M">Mahbub Khandaker</a>, <a href="/search/nucl-ex?searchtype=author&query=Liyanage%2C+N">Nilanga Liyanage</a>, <a href="/search/nucl-ex?searchtype=author&query=Pasyuk%2C+E">Eugene Pasyuk</a>, <a href="/search/nucl-ex?searchtype=author&query=Peng%2C+C">Chao Peng</a>, <a href="/search/nucl-ex?searchtype=author&query=Xiong%2C+W">Weizhi Xiong</a> </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="2010.09003v2-abstract-short" style="display: inline;"> To extract the charge radius of the proton, $r_{p}$, from the electron scattering data, the PRad collaboration at Jefferson Lab has developed a rigorous framework for finding the best functional forms - the fitters - for a robust extraction of $r_{p}$ from a wide variety of sample functions for the range and uncertainties of the PRad data. In this paper we utilize and further develop this framewor… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2010.09003v2-abstract-full').style.display = 'inline'; document.getElementById('2010.09003v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2010.09003v2-abstract-full" style="display: none;"> To extract the charge radius of the proton, $r_{p}$, from the electron scattering data, the PRad collaboration at Jefferson Lab has developed a rigorous framework for finding the best functional forms - the fitters - for a robust extraction of $r_{p}$ from a wide variety of sample functions for the range and uncertainties of the PRad data. In this paper we utilize and further develop this framework. Herein we discuss methods for searching for the best fitter candidates as well as a procedure for testing the robustness of extraction of the deuteron charge radius, $r_{d}$, from parametrizations based on elastic electron-deuteron scattering data. The ansatz proposed in this paper for the robust extraction of $r_{d}$, for the proposed low-$Q^{2}$ DRad experiment at Jefferson Lab, can be further improved once there are more data. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2010.09003v2-abstract-full').style.display = 'none'; document.getElementById('2010.09003v2-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 18 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">14 pages, 3 tables and 9 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 103, 024002 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2009.10510">arXiv:2009.10510</a> <span> [<a href="https://arxiv.org/pdf/2009.10510">pdf</a>, <a href="https://arxiv.org/format/2009.10510">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> <p class="title is-5 mathjax"> PRad-II: A New Upgraded High Precision Measurement of the Proton Charge Radius </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Gasparian%2C+A">A. Gasparian</a>, <a href="/search/nucl-ex?searchtype=author&query=Gao%2C+H">H. Gao</a>, <a href="/search/nucl-ex?searchtype=author&query=Dutta%2C+D">D. Dutta</a>, <a href="/search/nucl-ex?searchtype=author&query=Liyanage%2C+N">N. Liyanage</a>, <a href="/search/nucl-ex?searchtype=author&query=Pasyuk%2C+E">E. Pasyuk</a>, <a href="/search/nucl-ex?searchtype=author&query=Higinbotham%2C+D+W">D. W. Higinbotham</a>, <a href="/search/nucl-ex?searchtype=author&query=Peng%2C+C">C. Peng</a>, <a href="/search/nucl-ex?searchtype=author&query=Gnanvo%2C+K">K. Gnanvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Xiong%2C+W">W. Xiong</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=collaboration%2C+t+P">the PRad collaboration</a> </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="2009.10510v2-abstract-short" style="display: inline;"> The PRad experiment has credibly demonstrated the advantages of the calorimetric method in e-p scattering experiments to measure the proton root-mean-square (RMS) charge radius with high accuracy. The PRad result, within its experimental uncertainties, is in agreement with the small radius measured in muonic hydrogen spectroscopy experiments and it was a critical input in the recent revision of th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2009.10510v2-abstract-full').style.display = 'inline'; document.getElementById('2009.10510v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2009.10510v2-abstract-full" style="display: none;"> The PRad experiment has credibly demonstrated the advantages of the calorimetric method in e-p scattering experiments to measure the proton root-mean-square (RMS) charge radius with high accuracy. The PRad result, within its experimental uncertainties, is in agreement with the small radius measured in muonic hydrogen spectroscopy experiments and it was a critical input in the recent revision of the CODATA recommendation for the proton charge radius. Consequently, the PRad result is in direct conflict with all modern electron scattering experiments. Most importantly, it is 5.8% smaller than the value from the most precise electron scattering experiment to date, and this difference is about three standard deviations given the precision of the PRad experiment. As the first experiment of its kind, PRad did not reach the highest precision allowed by the calorimetric technique. Here we propose a new (and) upgraded experiment -- PRad-II, which will reduce the overall experimental uncertainties by a factor of 3.8 compared to PRad and address this as yet unsettled controversy in subatomic physics. In addition, PRad-II will be the first lepton scattering experiment to reach the Q^2 range of 10^{-5} GeV^2 allowing a more accurate and robust extraction of the proton charge radius. The muonic hydrogen result with its unprecedented precision (~0.05%) determines the CODATA value of the proton charge radius, hence, it is critical to evaluate possible systematic uncertainties of those experiments, such as the laser frequency calibration that was raised in recent review articles. The PRad-II experiment with its projected total uncertainty of 0.43% could demonstrate whether there is any systematic difference between $e-p$ scattering and muonic hydrogen results. PRad-II will establish a new precision frontier in electron scattering and open doors for future physics opportunities. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2009.10510v2-abstract-full').style.display = 'none'; document.getElementById('2009.10510v2-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> 27 January, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 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">Proposal approved by JLab PAC 48</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2007.15081">arXiv:2007.15081</a> <span> [<a href="https://arxiv.org/pdf/2007.15081">pdf</a>, <a href="https://arxiv.org/format/2007.15081">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> </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/epja/s10050-021-00564-y">10.1140/epja/s10050-021-00564-y <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> An experimental program with high duty-cycle polarized and unpolarized positron beams at Jefferson Lab </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Accardi%2C+A">A. Accardi</a>, <a href="/search/nucl-ex?searchtype=author&query=Afanasev%2C+A">A. Afanasev</a>, <a href="/search/nucl-ex?searchtype=author&query=Albayrak%2C+I">I. Albayrak</a>, <a href="/search/nucl-ex?searchtype=author&query=Ali%2C+S+F">S. F. Ali</a>, <a href="/search/nucl-ex?searchtype=author&query=Amaryan%2C+M">M. Amaryan</a>, <a href="/search/nucl-ex?searchtype=author&query=Annand%2C+J+R+M">J. R. M. Annand</a>, <a href="/search/nucl-ex?searchtype=author&query=Arrington%2C+J">J. Arrington</a>, <a href="/search/nucl-ex?searchtype=author&query=Asaturyan%2C+A">A. Asaturyan</a>, <a href="/search/nucl-ex?searchtype=author&query=Atac%2C+H">H. Atac</a>, <a href="/search/nucl-ex?searchtype=author&query=Avakian%2C+H">H. Avakian</a>, <a href="/search/nucl-ex?searchtype=author&query=Averett%2C+T">T. Averett</a>, <a href="/search/nucl-ex?searchtype=author&query=Gayoso%2C+C+A">C. Ayerbe Gayoso</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Barion%2C+L">L. Barion</a>, <a href="/search/nucl-ex?searchtype=author&query=Battaglieri%2C+M">M. Battaglieri</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellini%2C+V">V. Bellini</a>, <a href="/search/nucl-ex?searchtype=author&query=Beminiwattha%2C+R">R. Beminiwattha</a>, <a href="/search/nucl-ex?searchtype=author&query=Benmokhtar%2C+F">F. Benmokhtar</a>, <a href="/search/nucl-ex?searchtype=author&query=Berdnikov%2C+V+V">V. V. Berdnikov</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernauer%2C+J+C">J. C. Bernauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertone%2C+V">V. Bertone</a>, <a href="/search/nucl-ex?searchtype=author&query=Bianconi%2C+A">A. Bianconi</a>, <a href="/search/nucl-ex?searchtype=author&query=Biselli%2C+A">A. Biselli</a>, <a href="/search/nucl-ex?searchtype=author&query=Bisio%2C+P">P. Bisio</a>, <a href="/search/nucl-ex?searchtype=author&query=Blunden%2C+P">P. Blunden</a> , et al. (205 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="2007.15081v2-abstract-short" style="display: inline;"> Positron beams, both polarized and unpolarized, are identified as essential ingredients for the experimental programs at the next generation of lepton accelerators. In the context of the hadronic physics program at Jefferson Lab (JLab), positron beams are complementary, even essential, tools for a precise understanding of the electromagnetic structure of nucleons and nuclei, in both the elastic an… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2007.15081v2-abstract-full').style.display = 'inline'; document.getElementById('2007.15081v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2007.15081v2-abstract-full" style="display: none;"> Positron beams, both polarized and unpolarized, are identified as essential ingredients for the experimental programs at the next generation of lepton accelerators. In the context of the hadronic physics program at Jefferson Lab (JLab), positron beams are complementary, even essential, tools for a precise understanding of the electromagnetic structure of nucleons and nuclei, in both the elastic and deep-inelastic regimes. For instance, elastic scattering of polarized and unpolarized electrons and positrons from the nucleon enables a model independent determination of its electromagnetic form factors. Also, the deeply-virtual scattering of polarized and unpolarized electrons and positrons allows unambiguous separation of the different contributions to the cross section of the lepto-production of photons and of lepton-pairs, enabling an accurate determination of the nucleons and nuclei generalized parton distributions, and providing an access to the gravitational form factors. Furthermore, positron beams offer the possibility of alternative tests of the Standard Model of particle physics through the search of a dark photon, the precise measurement of electroweak couplings, and the investigation of charged lepton flavor violation. This document discusses the perspectives of an experimental program with high duty-cycle positron beams at JLab. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2007.15081v2-abstract-full').style.display = 'none'; document.getElementById('2007.15081v2-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 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 29 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">18 pages, 7 figures This version superseeds the previous version which scientific content was decomposed into several more elaborated articles. All of these articles will be collected in the EPJ A Topical Issue about "Positron beam and physics at Jefferson Lab (e+@Jlab)"</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2005.14686">arXiv:2005.14686</a> <span> [<a href="https://arxiv.org/pdf/2005.14686">pdf</a>, <a href="https://arxiv.org/format/2005.14686">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/PhysRevC.102.064905">10.1103/PhysRevC.102.064905 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Production of $蟺^0$ and $畏$ mesons in U$+$U collisions at $\sqrt{s_{_{NN}}}=192$ GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Acharya%2C+U">U. Acharya</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Akimoto%2C+R">R. Akimoto</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+J">J. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-ex?searchtype=author&query=Apadula%2C+N">N. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&query=Asano%2C+H">H. Asano</a>, <a href="/search/nucl-ex?searchtype=author&query=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Awes%2C+T+C">T. C. Awes</a>, <a href="/search/nucl-ex?searchtype=author&query=Azmoun%2C+B">B. Azmoun</a>, <a href="/search/nucl-ex?searchtype=author&query=Babintsev%2C+V">V. Babintsev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+M">M. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bannier%2C+B">B. Bannier</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K+N">K. N. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bathe%2C+S">S. Bathe</a>, <a href="/search/nucl-ex?searchtype=author&query=Baublis%2C+V">V. Baublis</a>, <a href="/search/nucl-ex?searchtype=author&query=Baumann%2C+C">C. Baumann</a>, <a href="/search/nucl-ex?searchtype=author&query=Baumgart%2C+S">S. Baumgart</a>, <a href="/search/nucl-ex?searchtype=author&query=Bazilevsky%2C+A">A. Bazilevsky</a>, <a href="/search/nucl-ex?searchtype=author&query=Beaumier%2C+M">M. Beaumier</a>, <a href="/search/nucl-ex?searchtype=author&query=Belmont%2C+R">R. Belmont</a>, <a href="/search/nucl-ex?searchtype=author&query=Berdnikov%2C+A">A. Berdnikov</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="2005.14686v2-abstract-short" style="display: inline;"> The PHENIX experiment at the Relativistic Heavy Ion Collider measured $蟺^0$ and $畏$ mesons at midrapidity in U$+$U collisions at $\sqrt{s_{_{NN}}}=192$ GeV in a wide transverse momentum range. Measurements were performed in the $蟺^0(畏)\rightarrow纬纬$ decay modes. A strong suppression of $蟺^0$ and $畏$ meson production at high transverse momentum was observed in central U$+$U collisions relative to b… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2005.14686v2-abstract-full').style.display = 'inline'; document.getElementById('2005.14686v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2005.14686v2-abstract-full" style="display: none;"> The PHENIX experiment at the Relativistic Heavy Ion Collider measured $蟺^0$ and $畏$ mesons at midrapidity in U$+$U collisions at $\sqrt{s_{_{NN}}}=192$ GeV in a wide transverse momentum range. Measurements were performed in the $蟺^0(畏)\rightarrow纬纬$ decay modes. A strong suppression of $蟺^0$ and $畏$ meson production at high transverse momentum was observed in central U$+$U collisions relative to binary scaled $p$$+$$p$ results. Yields of $蟺^0$ and $畏$ mesons measured in U$+$U collisions show similar suppression pattern to the ones measured in Au$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV for similar numbers of participant nucleons. The $畏$/$蟺^0$ ratios do not show dependence on centrality or transverse momentum, and are consistent with previously measured values in hadron-hadron, hadron-nucleus, nucleus-nucleus, and $e^+e^-$ collisions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2005.14686v2-abstract-full').style.display = 'none'; document.getElementById('2005.14686v2-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> 13 November, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 29 May, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 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">403 authors from 72 institutions, 13 pages, 6 figures, 7 tables, 2012 data. v2 is version accepted by Physical Review C. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html</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, 064905 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2004.11448">arXiv:2004.11448</a> <span> [<a href="https://arxiv.org/pdf/2004.11448">pdf</a>, <a href="https://arxiv.org/format/2004.11448">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> </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.102.064004">10.1103/PhysRevC.102.064004 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Novel observation of isospin structure of short-range correlations in calcium isotopes </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Nguyen%2C+D">D. Nguyen</a>, <a href="/search/nucl-ex?searchtype=author&query=Ye%2C+Z">Z. Ye</a>, <a href="/search/nucl-ex?searchtype=author&query=Aguilera%2C+P">P. Aguilera</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahmed%2C+Z">Z. Ahmed</a>, <a href="/search/nucl-ex?searchtype=author&query=Albataineh%2C+H">H. Albataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Allada%2C+K">K. Allada</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+B">B. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Anez%2C+D">D. Anez</a>, <a href="/search/nucl-ex?searchtype=author&query=Aniol%2C+K">K. Aniol</a>, <a href="/search/nucl-ex?searchtype=author&query=Annand%2C+J">J. Annand</a>, <a href="/search/nucl-ex?searchtype=author&query=Arrington%2C+J">J. Arrington</a>, <a href="/search/nucl-ex?searchtype=author&query=Averett%2C+T">T. Averett</a>, <a href="/search/nucl-ex?searchtype=author&query=Baghdasaryan%2C+H">H. Baghdasaryan</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Beck%2C+A">A. Beck</a>, <a href="/search/nucl-ex?searchtype=author&query=Beck%2C+S">S. Beck</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellini%2C+V">V. Bellini</a>, <a href="/search/nucl-ex?searchtype=author&query=Benmokhtar%2C+F">F. Benmokhtar</a>, <a href="/search/nucl-ex?searchtype=author&query=Camsonne%2C+A">A. Camsonne</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+C">C. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+J+-">J. -P. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Chirapatpimol%2C+K">K. Chirapatpimol</a>, <a href="/search/nucl-ex?searchtype=author&query=Cisbani%2C+E">E. Cisbani</a>, <a href="/search/nucl-ex?searchtype=author&query=Dalton%2C+M+M">M. M. Dalton</a>, <a href="/search/nucl-ex?searchtype=author&query=Daniel%2C+A">A. Daniel</a> , et al. (79 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="2004.11448v2-abstract-short" style="display: inline;"> Short Range Correlations (SRCs) have been identified as being responsible for the high momentum tail of the nucleon momentum distribution, n(k). Hard, short-range interactions of nucleon pairs generate the high momentum tail and imprint a universal character on n(k) for all nuclei at large momentum. Triple coincidence experiments have shown a strong dominance of np pairs, but these measurements in… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2004.11448v2-abstract-full').style.display = 'inline'; document.getElementById('2004.11448v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2004.11448v2-abstract-full" style="display: none;"> Short Range Correlations (SRCs) have been identified as being responsible for the high momentum tail of the nucleon momentum distribution, n(k). Hard, short-range interactions of nucleon pairs generate the high momentum tail and imprint a universal character on n(k) for all nuclei at large momentum. Triple coincidence experiments have shown a strong dominance of np pairs, but these measurements involve large final state interactions. This paper presents the results from Jefferson Lab experiment E08014 which measured inclusive electron scattering cross-section from Ca isotopes. By comparing the inclusive cross section from 48Ca to 40Ca in a kinematic region dominated by SRCs we provide a new way to study the isospin structure of SRCs. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2004.11448v2-abstract-full').style.display = 'none'; document.getElementById('2004.11448v2-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, 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">7 pages, 3 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> JLAB-PHY-20-3177, DOE/OR/23177-4956 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 102, 064004 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2004.06304">arXiv:2004.06304</a> <span> [<a href="https://arxiv.org/pdf/2004.06304">pdf</a>, <a href="https://arxiv.org/format/2004.06304">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</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 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.102.112002">10.1103/PhysRevD.102.112002 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Discrimination of electronic recoils from nuclear recoils in two-phase xenon time projection chambers </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=LUX+Collaboration"> LUX Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Akerib%2C+D+S">D. S. Akerib</a>, <a href="/search/nucl-ex?searchtype=author&query=Alsum%2C+S">S. Alsum</a>, <a href="/search/nucl-ex?searchtype=author&query=Ara%C3%BAjo%2C+H+M">H. M. Ara煤jo</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Balajthy%2C+J">J. Balajthy</a>, <a href="/search/nucl-ex?searchtype=author&query=Baxter%2C+A">A. Baxter</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernard%2C+E+P">E. P. Bernard</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernstein%2C+A">A. Bernstein</a>, <a href="/search/nucl-ex?searchtype=author&query=Biesiadzinski%2C+T+P">T. P. Biesiadzinski</a>, <a href="/search/nucl-ex?searchtype=author&query=Boulton%2C+E+M">E. M. Boulton</a>, <a href="/search/nucl-ex?searchtype=author&query=Boxer%2C+B">B. Boxer</a>, <a href="/search/nucl-ex?searchtype=author&query=Br%C3%A1s%2C+P">P. Br谩s</a>, <a href="/search/nucl-ex?searchtype=author&query=Burdin%2C+S">S. Burdin</a>, <a href="/search/nucl-ex?searchtype=author&query=Byram%2C+D">D. Byram</a>, <a href="/search/nucl-ex?searchtype=author&query=Carmona-Benitez%2C+M+C">M. C. Carmona-Benitez</a>, <a href="/search/nucl-ex?searchtype=author&query=Chan%2C+C">C. Chan</a>, <a href="/search/nucl-ex?searchtype=author&query=Cutter%2C+J+E">J. E. Cutter</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Viveiros%2C+L">L. de Viveiros</a>, <a href="/search/nucl-ex?searchtype=author&query=Druszkiewicz%2C+E">E. Druszkiewicz</a>, <a href="/search/nucl-ex?searchtype=author&query=Fan%2C+A">A. Fan</a>, <a href="/search/nucl-ex?searchtype=author&query=Fiorucci%2C+S">S. Fiorucci</a>, <a href="/search/nucl-ex?searchtype=author&query=Gaitskell%2C+R+J">R. J. Gaitskell</a>, <a href="/search/nucl-ex?searchtype=author&query=Ghag%2C+C">C. Ghag</a>, <a href="/search/nucl-ex?searchtype=author&query=Gilchriese%2C+M+G+D">M. G. D. Gilchriese</a> , et al. (72 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="2004.06304v3-abstract-short" style="display: inline;"> We present a comprehensive analysis of electronic recoil vs. nuclear recoil discrimination in liquid/gas xenon time projection chambers, using calibration data from the 2013 and 2014-16 runs of the Large Underground Xenon (LUX) experiment. We observe strong charge-to-light discrimination enhancement with increased event energy. For events with S1 = 120 detected photons, i.e. equivalent to a nuclea… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2004.06304v3-abstract-full').style.display = 'inline'; document.getElementById('2004.06304v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2004.06304v3-abstract-full" style="display: none;"> We present a comprehensive analysis of electronic recoil vs. nuclear recoil discrimination in liquid/gas xenon time projection chambers, using calibration data from the 2013 and 2014-16 runs of the Large Underground Xenon (LUX) experiment. We observe strong charge-to-light discrimination enhancement with increased event energy. For events with S1 = 120 detected photons, i.e. equivalent to a nuclear recoil energy of $\sim$100 keV, we observe an electronic recoil background acceptance of $<10^{-5}$ at a nuclear recoil signal acceptance of 50%. We also observe modest electric field dependence of the discrimination power, which peaks at a field of around 300 V/cm over the range of fields explored in this study (50-500 V/cm). In the WIMP search region of S1 = 1-80 phd, the minimum electronic recoil leakage we observe is ${(7.3\pm0.6)\times10^{-4}}$, which is obtained for a drift field of 240-290 V/cm. Pulse shape discrimination is utilized to improve our results, and we find that, at low energies and low fields, there is an additional reduction in background leakage by a factor of up to 3. We develop an empirical model for recombination fluctuations which, when used alongside the Noble Element Scintillation Technique (NEST) simulation package, correctly reproduces the skewness of the electronic recoil data. We use this updated simulation to study the width of the electronic recoil band, finding that its dominant contribution comes from electron-ion recombination fluctuations, followed in magnitude of contribution by fluctuations in the S1 signal, fluctuations in the S2 signal, and fluctuations in the total number of quanta produced for a given energy deposition. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2004.06304v3-abstract-full').style.display = 'none'; document.getElementById('2004.06304v3-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 December, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 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">29 pages, 33 figures; minor typos corrected, references updated</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, 112002 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2001.11925">arXiv:2001.11925</a> <span> [<a href="https://arxiv.org/pdf/2001.11925">pdf</a>, <a href="https://arxiv.org/format/2001.11925">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.nuclphysa.2020.121769">10.1016/j.nuclphysa.2020.121769 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Quarkonium measurements in nucleus-nucleus collisions with ALICE </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">Xiaozhi Bai</a> </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="2001.11925v1-abstract-short" style="display: inline;"> Heavy quarks are produced in the early stages of nucleus-nucleus collisions and can therefore provide important insight into the Quark-Gluon Plasma (QGP). Quarkonia are proposed as crucial probes to study the QGP. The extent of the medium modification for heavy-quark quarkonium production in heavy-ion collisions is measured in terms of a nuclear modification factor $R_{\rm AA}$, defined as the qua… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2001.11925v1-abstract-full').style.display = 'inline'; document.getElementById('2001.11925v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2001.11925v1-abstract-full" style="display: none;"> Heavy quarks are produced in the early stages of nucleus-nucleus collisions and can therefore provide important insight into the Quark-Gluon Plasma (QGP). Quarkonia are proposed as crucial probes to study the QGP. The extent of the medium modification for heavy-quark quarkonium production in heavy-ion collisions is measured in terms of a nuclear modification factor $R_{\rm AA}$, defined as the quarkonium yield in heavy-ion collisions divided by the relative quarkonium cross section in pp collisions scaled by the nuclear overlap function. A possible path-length dependent quarkonium dissociation, as well as a contribution of (re-)generation of quarkonia from heavy quarks in the medium, would lead to an azimuthal anisotropy of quarkonium production relative to the reaction plane. In this contribution, the recent ALICE measurements of quarkonium in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV will be discussed for both mid- and forward rapidity. The dependence of $R_{\rm AA}$ on centrality and $p_{\rm T}$ for J/$蠄$, $违$(1S), $违$(2S), as well as the J/$蠄$ elliptic flow $v_{2}$ will be shown. The experimental data and the current theoretical model calculations will be also discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2001.11925v1-abstract-full').style.display = 'none'; document.getElementById('2001.11925v1-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 January, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2020. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2001.07230">arXiv:2001.07230</a> <span> [<a href="https://arxiv.org/pdf/2001.07230">pdf</a>, <a href="https://arxiv.org/format/2001.07230">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="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.124.212501">10.1103/PhysRevLett.124.212501 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Probing few-body nuclear dynamics via 3H and 3He (e,e'p)pn cross-section measurements </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Cruz-Torres%2C+R">R. Cruz-Torres</a>, <a href="/search/nucl-ex?searchtype=author&query=Nguyen%2C+D">D. Nguyen</a>, <a href="/search/nucl-ex?searchtype=author&query=Hauenstein%2C+F">F. Hauenstein</a>, <a href="/search/nucl-ex?searchtype=author&query=Schmidt%2C+A">A. Schmidt</a>, <a href="/search/nucl-ex?searchtype=author&query=Li%2C+S">S. Li</a>, <a href="/search/nucl-ex?searchtype=author&query=Abrams%2C+D">D. Abrams</a>, <a href="/search/nucl-ex?searchtype=author&query=Albataineh%2C+H">H. Albataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Alsalmi%2C+S">S. Alsalmi</a>, <a href="/search/nucl-ex?searchtype=author&query=Androic%2C+D">D. Androic</a>, <a href="/search/nucl-ex?searchtype=author&query=Aniol%2C+K">K. Aniol</a>, <a href="/search/nucl-ex?searchtype=author&query=Armstrong%2C+W">W. Armstrong</a>, <a href="/search/nucl-ex?searchtype=author&query=Arrington%2C+J">J. Arrington</a>, <a href="/search/nucl-ex?searchtype=author&query=Atac%2C+H">H. Atac</a>, <a href="/search/nucl-ex?searchtype=author&query=Averett%2C+T">T. Averett</a>, <a href="/search/nucl-ex?searchtype=author&query=Gayoso%2C+C+A">C. Ayerbe Gayoso</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bane%2C+J">J. Bane</a>, <a href="/search/nucl-ex?searchtype=author&query=Barcus%2C+S">S. Barcus</a>, <a href="/search/nucl-ex?searchtype=author&query=Beck%2C+A">A. Beck</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellini%2C+V">V. Bellini</a>, <a href="/search/nucl-ex?searchtype=author&query=Benmokhtar%2C+F">F. Benmokhtar</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhatt%2C+H">H. Bhatt</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhetuwal%2C+D">D. Bhetuwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Biswas%2C+D">D. Biswas</a>, <a href="/search/nucl-ex?searchtype=author&query=Blyth%2C+D">D. Blyth</a> , et al. (103 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="2001.07230v3-abstract-short" style="display: inline;"> We report the first measurement of the \eep three-body breakup reaction cross sections in helium-3 ($^3$He) and tritium ($^3$H) at large momentum transfer ($\langle Q^2 \rangle \approx 1.9$ (GeV/c)$^2$) and $x_B>1$ kinematics, where the cross section should be sensitive to quasielastic (QE) scattering from single nucleons. The data cover missing momenta $40 \le p_{miss} \le 500$ MeV/c that, in the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2001.07230v3-abstract-full').style.display = 'inline'; document.getElementById('2001.07230v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2001.07230v3-abstract-full" style="display: none;"> We report the first measurement of the \eep three-body breakup reaction cross sections in helium-3 ($^3$He) and tritium ($^3$H) at large momentum transfer ($\langle Q^2 \rangle \approx 1.9$ (GeV/c)$^2$) and $x_B>1$ kinematics, where the cross section should be sensitive to quasielastic (QE) scattering from single nucleons. The data cover missing momenta $40 \le p_{miss} \le 500$ MeV/c that, in the QE limit with no rescattering, equals the initial momentum of the probed nucleon. The measured cross sections are compared with state-of-the-art ab-initio calculations. Overall good agreement, within $\pm20\%$, is observed between data and calculations for the full $p_{miss}$ range for $^3$H and for $100 \le p_{miss} \le 350$ MeV/c for $^3$He. Including the effects of rescattering of the outgoing nucleon improves agreement with the data at $p_{miss} > 250$ MeV/c and suggests contributions from charge-exchange (SCX) rescattering. The isoscalar sum of $^3$He plus $^3$H, which is largely insensitive to SCX, is described by calculations to within the accuracy of the data over the entire $p_{miss}$ range. This validates current models of the ground state of the three-nucleon system up to very high initial nucleon momenta of $500$ MeV/c. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2001.07230v3-abstract-full').style.display = 'none'; document.getElementById('2001.07230v3-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 June, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 20 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">Accepted for publication in PRL. 8 pages, 3 figures, and online supplementary materials</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 124, 212501 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1912.04248">arXiv:1912.04248</a> <span> [<a href="https://arxiv.org/pdf/1912.04248">pdf</a>, <a href="https://arxiv.org/format/1912.04248">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> </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.102.014602">10.1103/PhysRevC.102.014602 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Projected sensitivity of the LUX-ZEPLIN experiment to the $0谓尾尾$ decay of $^{136}$Xe </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Akerib%2C+D+S">D. S. Akerib</a>, <a href="/search/nucl-ex?searchtype=author&query=Akerlof%2C+C+W">C. W. Akerlof</a>, <a href="/search/nucl-ex?searchtype=author&query=Alqahtani%2C+A">A. Alqahtani</a>, <a href="/search/nucl-ex?searchtype=author&query=Alsum%2C+S+K">S. K. Alsum</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+T+J">T. J. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Angelides%2C+N">N. Angelides</a>, <a href="/search/nucl-ex?searchtype=author&query=Ara%C3%BAjo%2C+H+M">H. M. Ara煤jo</a>, <a href="/search/nucl-ex?searchtype=author&query=Armstrong%2C+J+E">J. E. Armstrong</a>, <a href="/search/nucl-ex?searchtype=author&query=Arthurs%2C+M">M. Arthurs</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Balajthy%2C+J">J. Balajthy</a>, <a href="/search/nucl-ex?searchtype=author&query=Balashov%2C+S">S. Balashov</a>, <a href="/search/nucl-ex?searchtype=author&query=Bang%2C+J">J. Bang</a>, <a href="/search/nucl-ex?searchtype=author&query=Baxter%2C+A">A. Baxter</a>, <a href="/search/nucl-ex?searchtype=author&query=Bensinger%2C+J">J. Bensinger</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernard%2C+E+P">E. P. Bernard</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernstein%2C+A">A. Bernstein</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhatti%2C+A">A. Bhatti</a>, <a href="/search/nucl-ex?searchtype=author&query=Biekert%2C+A">A. Biekert</a>, <a href="/search/nucl-ex?searchtype=author&query=Biesiadzinski%2C+T+P">T. P. Biesiadzinski</a>, <a href="/search/nucl-ex?searchtype=author&query=Birch%2C+H+J">H. J. Birch</a>, <a href="/search/nucl-ex?searchtype=author&query=Boast%2C+K+E">K. E. Boast</a>, <a href="/search/nucl-ex?searchtype=author&query=Boxer%2C+B">B. Boxer</a>, <a href="/search/nucl-ex?searchtype=author&query=Br%C3%A1s%2C+P">P. Br谩s</a>, <a href="/search/nucl-ex?searchtype=author&query=Buckley%2C+J+H">J. H. Buckley</a> , et al. (167 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="1912.04248v2-abstract-short" style="display: inline;"> The LUX-ZEPLIN (LZ) experiment will enable a neutrinoless double beta decay search in parallel to the main science goal of discovering dark matter particle interactions. We report the expected LZ sensitivity to $^{136}$Xe neutrinoless double beta decay, taking advantage of the significant ($>$600 kg) $^{136}$Xe mass contained within the active volume of LZ without isotopic enrichment. After 1000 l… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.04248v2-abstract-full').style.display = 'inline'; document.getElementById('1912.04248v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1912.04248v2-abstract-full" style="display: none;"> The LUX-ZEPLIN (LZ) experiment will enable a neutrinoless double beta decay search in parallel to the main science goal of discovering dark matter particle interactions. We report the expected LZ sensitivity to $^{136}$Xe neutrinoless double beta decay, taking advantage of the significant ($>$600 kg) $^{136}$Xe mass contained within the active volume of LZ without isotopic enrichment. After 1000 live-days, the median exclusion sensitivity to the half-life of $^{136}$Xe is projected to be 1.06$\times$10$^{26}$ years (90% confidence level), similar to existing constraints. We also report the expected sensitivity of a possible subsequent dedicated exposure using 90% enrichment with $^{136}$Xe at 1.06$\times$10$^{27}$ years. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.04248v2-abstract-full').style.display = 'none'; document.getElementById('1912.04248v2-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> 24 April, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 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">13 pages, 7 figures, 2 tables, version 2 changes: additional clarifications requested by referee on Sections II.A, III.C, III.E, III.F and IV.B</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, 014602 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1912.02742">arXiv:1912.02742</a> <span> [<a href="https://arxiv.org/pdf/1912.02742">pdf</a>, <a href="https://arxiv.org/format/1912.02742">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="Instrumentation and Detectors">physics.ins-det</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/10.1088/1361-6471/ab9c2d">10.1088/1361-6471/ab9c2d <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for two neutrino double electron capture of $^{124}$Xe and $^{126}$Xe in the full exposure of the LUX detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=LUX+Collaboration"> LUX Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Akerib%2C+D+S">D. S. Akerib</a>, <a href="/search/nucl-ex?searchtype=author&query=Alsum%2C+S">S. Alsum</a>, <a href="/search/nucl-ex?searchtype=author&query=Ara%C3%BAjo%2C+H+M">H. M. Ara煤jo</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Balajthy%2C+J">J. Balajthy</a>, <a href="/search/nucl-ex?searchtype=author&query=Baxter%2C+A">A. Baxter</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernard%2C+E+P">E. P. Bernard</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernstein%2C+A">A. Bernstein</a>, <a href="/search/nucl-ex?searchtype=author&query=Biesiadzinski%2C+T+P">T. P. Biesiadzinski</a>, <a href="/search/nucl-ex?searchtype=author&query=Boulton%2C+E+M">E. M. Boulton</a>, <a href="/search/nucl-ex?searchtype=author&query=Boxer%2C+B">B. Boxer</a>, <a href="/search/nucl-ex?searchtype=author&query=Br%C3%A1s%2C+P">P. Br谩s</a>, <a href="/search/nucl-ex?searchtype=author&query=Burdin%2C+S">S. Burdin</a>, <a href="/search/nucl-ex?searchtype=author&query=Byram%2C+D">D. Byram</a>, <a href="/search/nucl-ex?searchtype=author&query=Carmona-Benitez%2C+M+C">M. C. Carmona-Benitez</a>, <a href="/search/nucl-ex?searchtype=author&query=Chan%2C+C">C. Chan</a>, <a href="/search/nucl-ex?searchtype=author&query=Cutter%2C+J+E">J. E. Cutter</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Viveiros%2C+L">L. de Viveiros</a>, <a href="/search/nucl-ex?searchtype=author&query=Druszkiewicz%2C+E">E. Druszkiewicz</a>, <a href="/search/nucl-ex?searchtype=author&query=Fan%2C+A">A. Fan</a>, <a href="/search/nucl-ex?searchtype=author&query=Fiorucci%2C+S">S. Fiorucci</a>, <a href="/search/nucl-ex?searchtype=author&query=Gaitskell%2C+R+J">R. J. Gaitskell</a>, <a href="/search/nucl-ex?searchtype=author&query=Ghag%2C+C">C. Ghag</a>, <a href="/search/nucl-ex?searchtype=author&query=Gilchriese%2C+M+G+D">M. G. D. Gilchriese</a> , et al. (74 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="1912.02742v2-abstract-short" style="display: inline;"> Two-neutrino double electron capture is a process allowed in the Standard Model of Particle Physics. This rare decay has been observed in $^{78}$Kr, $^{130}$Ba and more recently in $^{124}$Xe. In this publication we report on the search for this process in $^{124}$Xe and $^{126}$Xe using the full exposure of the Large Underground Xenon (LUX) experiment, in a total of of 27769.5~kg-days. No evidenc… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.02742v2-abstract-full').style.display = 'inline'; document.getElementById('1912.02742v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1912.02742v2-abstract-full" style="display: none;"> Two-neutrino double electron capture is a process allowed in the Standard Model of Particle Physics. This rare decay has been observed in $^{78}$Kr, $^{130}$Ba and more recently in $^{124}$Xe. In this publication we report on the search for this process in $^{124}$Xe and $^{126}$Xe using the full exposure of the Large Underground Xenon (LUX) experiment, in a total of of 27769.5~kg-days. No evidence of a signal was observed, allowing us to set 90\% C.L. lower limits for the half-lives of these decays of $2.0\times10^{21}$~years for $^{124}$Xe and $1.9\times10^{21}$~years for $^{126}$Xe. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.02742v2-abstract-full').style.display = 'none'; document.getElementById('1912.02742v2-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 May, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 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">8 pages, 3 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> J.Phys.G 47 (2020) 10, 105105 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1905.00541">arXiv:1905.00541</a> <span> [<a href="https://arxiv.org/pdf/1905.00541">pdf</a>, <a href="https://arxiv.org/format/1905.00541">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> </div> </div> <p class="title is-5 mathjax"> Probing for high momentum protons in $^4$He via the $^4He(e,e'p)X$ reaction </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Iqbal%2C+S">S. Iqbal</a>, <a href="/search/nucl-ex?searchtype=author&query=Benmokhtar%2C+F">F. Benmokhtar</a>, <a href="/search/nucl-ex?searchtype=author&query=Ivanov%2C+M">M. Ivanov</a>, <a href="/search/nucl-ex?searchtype=author&query=See%2C+N">N. See</a>, <a href="/search/nucl-ex?searchtype=author&query=Aniol%2C+K">K. Aniol</a>, <a href="/search/nucl-ex?searchtype=author&query=Higinbotham%2C+D+W">D. W. Higinbotham</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyd%2C+C">C. Boyd</a>, <a href="/search/nucl-ex?searchtype=author&query=Gadsby%2C+A">A. Gadsby</a>, <a href="/search/nucl-ex?searchtype=author&query=Gilad%2C+S">S. Gilad</a>, <a href="/search/nucl-ex?searchtype=author&query=Saha%2C+A">A. Saha</a>, <a href="/search/nucl-ex?searchtype=author&query=Udias%2C+J+M">J. M. Udias</a>, <a href="/search/nucl-ex?searchtype=author&query=Goodwill%2C+J+S">J. S. Goodwill</a>, <a href="/search/nucl-ex?searchtype=author&query=Finton%2C+D">D. Finton</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyer%2C+A">A. Boyer</a>, <a href="/search/nucl-ex?searchtype=author&query=Ye%2C+Z">Z. Ye</a>, <a href="/search/nucl-ex?searchtype=author&query=Solvignon%2C+P">P. Solvignon</a>, <a href="/search/nucl-ex?searchtype=author&query=Aguilera%2C+P">P. Aguilera</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahmed%2C+Z">Z. Ahmed</a>, <a href="/search/nucl-ex?searchtype=author&query=Albataineh%2C+H">H. Albataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Allada%2C+K">K. Allada</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+B">B. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Anez%2C+D">D. Anez</a>, <a href="/search/nucl-ex?searchtype=author&query=Annand%2C+J">J. Annand</a>, <a href="/search/nucl-ex?searchtype=author&query=Arrington%2C+J">J. Arrington</a>, <a href="/search/nucl-ex?searchtype=author&query=Averett%2C+T">T. Averett</a> , et al. (85 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="1905.00541v5-abstract-short" style="display: inline;"> Experimental cross sections for the $^4He(e,e'p)X$ reaction up to a missing momentum of 0.632 GeV/$c$ at $x_B=1.24$ and $Q^2$=2(GeV/$c$)$^2$ are reported. The data are compared to Relativistic Distorted Wave Impulse Approximation(RDWIA) calculations for $^4He(e,e'p)^3H$ channel. Significantly more events in the triton mass region are measured for $p_{m}$$>$0.45 GeV/$c$ than are predicted by the th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1905.00541v5-abstract-full').style.display = 'inline'; document.getElementById('1905.00541v5-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1905.00541v5-abstract-full" style="display: none;"> Experimental cross sections for the $^4He(e,e'p)X$ reaction up to a missing momentum of 0.632 GeV/$c$ at $x_B=1.24$ and $Q^2$=2(GeV/$c$)$^2$ are reported. The data are compared to Relativistic Distorted Wave Impulse Approximation(RDWIA) calculations for $^4He(e,e'p)^3H$ channel. Significantly more events in the triton mass region are measured for $p_{m}$$>$0.45 GeV/$c$ than are predicted by the theoretical model, suggesting that the effects of initial-state multi-nucleon correlations are stronger than expected by the RDWIA model. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1905.00541v5-abstract-full').style.display = 'none'; document.getElementById('1905.00541v5-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> 13 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 1 May, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 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">Submitted to PRC</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> JLAB-PHY-19-2934 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1902.06358">arXiv:1902.06358</a> <span> [<a href="https://arxiv.org/pdf/1902.06358">pdf</a>, <a href="https://arxiv.org/format/1902.06358">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="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/10.1016/j.physletb.2019.134890">10.1016/j.physletb.2019.134890 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Comparing proton momentum distributions in $A=2$ and 3 nuclei via $^2$H $^3$H and $^3$He $(e, e'p)$ measurements </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Cruz-Torres%2C+R">R. Cruz-Torres</a>, <a href="/search/nucl-ex?searchtype=author&query=Li%2C+S">S. Li</a>, <a href="/search/nucl-ex?searchtype=author&query=Hauenstein%2C+F">F. Hauenstein</a>, <a href="/search/nucl-ex?searchtype=author&query=Schmidt%2C+A">A. Schmidt</a>, <a href="/search/nucl-ex?searchtype=author&query=Nguyen%2C+D">D. Nguyen</a>, <a href="/search/nucl-ex?searchtype=author&query=Abrams%2C+D">D. Abrams</a>, <a href="/search/nucl-ex?searchtype=author&query=Albataineh%2C+H">H. Albataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Alsalmi%2C+S">S. Alsalmi</a>, <a href="/search/nucl-ex?searchtype=author&query=Androic%2C+D">D. Androic</a>, <a href="/search/nucl-ex?searchtype=author&query=Aniol%2C+K">K. Aniol</a>, <a href="/search/nucl-ex?searchtype=author&query=Armstrong%2C+W">W. Armstrong</a>, <a href="/search/nucl-ex?searchtype=author&query=Arrington%2C+J">J. Arrington</a>, <a href="/search/nucl-ex?searchtype=author&query=Atac%2C+H">H. Atac</a>, <a href="/search/nucl-ex?searchtype=author&query=Averett%2C+T">T. Averett</a>, <a href="/search/nucl-ex?searchtype=author&query=Gayoso%2C+C+A">C. Ayerbe Gayoso</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bane%2C+J">J. Bane</a>, <a href="/search/nucl-ex?searchtype=author&query=Barcus%2C+S">S. Barcus</a>, <a href="/search/nucl-ex?searchtype=author&query=Beck%2C+A">A. Beck</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellini%2C+V">V. Bellini</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhatt%2C+H">H. Bhatt</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhetuwal%2C+D">D. Bhetuwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Biswas%2C+D">D. Biswas</a>, <a href="/search/nucl-ex?searchtype=author&query=Blyth%2C+D">D. Blyth</a>, <a href="/search/nucl-ex?searchtype=author&query=Boeglin%2C+W">W. Boeglin</a> , et al. (103 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="1902.06358v3-abstract-short" style="display: inline;"> We report the first measurement of the $(e,e'p)$ reaction cross-section ratios for Helium-3 ($^3$He), Tritium ($^3$H), and Deuterium ($d$). The measurement covered a missing momentum range of $40 \le p_{miss} \le 550$ MeV$/c$, at large momentum transfer ($\langle Q^2 \rangle \approx 1.9$ (GeV$/c$)$^2$) and $x_B>1$, which minimized contributions from non quasi-elastic (QE) reaction mechanisms. The… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1902.06358v3-abstract-full').style.display = 'inline'; document.getElementById('1902.06358v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1902.06358v3-abstract-full" style="display: none;"> We report the first measurement of the $(e,e'p)$ reaction cross-section ratios for Helium-3 ($^3$He), Tritium ($^3$H), and Deuterium ($d$). The measurement covered a missing momentum range of $40 \le p_{miss} \le 550$ MeV$/c$, at large momentum transfer ($\langle Q^2 \rangle \approx 1.9$ (GeV$/c$)$^2$) and $x_B>1$, which minimized contributions from non quasi-elastic (QE) reaction mechanisms. The data is compared with plane-wave impulse approximation (PWIA) calculations using realistic spectral functions and momentum distributions. The measured and PWIA-calculated cross-section ratios for $^3$He$/d$ and $^3$H$/d$ extend to just above the typical nucleon Fermi-momentum ($k_F \approx 250$ MeV$/c$) and differ from each other by $\sim 20\%$, while for $^3$He/$^3$H they agree within the measurement accuracy of about 3\%. At momenta above $k_F$, the measured $^3$He/$^3$H ratios differ from the calculation by $20\% - 50\%$. Final state interaction (FSI) calculations using the generalized Eikonal Approximation indicate that FSI should change the $^3$He/$^3$H cross-section ratio for this measurement by less than 5\%. If these calculations are correct, then the differences at large missing momenta between the $^3$He/$^3$H experimental and calculated ratios could be due to the underlying $NN$ interaction, and thus could provide new constraints on the previously loosely-constrained short-distance parts of the $NN$ interaction. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1902.06358v3-abstract-full').style.display = 'none'; document.getElementById('1902.06358v3-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> 24 September, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 February, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 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">8 pages, 3 figures (4 panels)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> JLAB-PHY-19-2893; LA-UR-18-31091 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physics Letters B 797 (2019) 134890 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1902.01211">arXiv:1902.01211</a> <span> [<a href="https://arxiv.org/pdf/1902.01211">pdf</a>, <a href="https://arxiv.org/format/1902.01211">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</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 Experiment">nucl-ex</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"> A next-generation LHC heavy-ion experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adamov%C3%A1%2C+D">D. Adamov谩</a>, <a href="/search/nucl-ex?searchtype=author&query=Rinella%2C+G+A">G. Aglieri Rinella</a>, <a href="/search/nucl-ex?searchtype=author&query=Agnello%2C+M">M. Agnello</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Aleksandrov%2C+D">D. Aleksandrov</a>, <a href="/search/nucl-ex?searchtype=author&query=Alici%2C+A">A. Alici</a>, <a href="/search/nucl-ex?searchtype=author&query=Alkin%2C+A">A. Alkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Alt%2C+T">T. Alt</a>, <a href="/search/nucl-ex?searchtype=author&query=Altsybeev%2C+I">I. Altsybeev</a>, <a href="/search/nucl-ex?searchtype=author&query=Andreou%2C+D">D. Andreou</a>, <a href="/search/nucl-ex?searchtype=author&query=Andronic%2C+A">A. Andronic</a>, <a href="/search/nucl-ex?searchtype=author&query=Antinori%2C+F">F. Antinori</a>, <a href="/search/nucl-ex?searchtype=author&query=Antonioli%2C+P">P. Antonioli</a>, <a href="/search/nucl-ex?searchtype=author&query=Appelsh%C3%A4user%2C+H">H. Appelsh盲user</a>, <a href="/search/nucl-ex?searchtype=author&query=Arnaldi%2C+R">R. Arnaldi</a>, <a href="/search/nucl-ex?searchtype=author&query=Arsene%2C+I+C">I. C. Arsene</a>, <a href="/search/nucl-ex?searchtype=author&query=Arslandok%2C+M">M. Arslandok</a>, <a href="/search/nucl-ex?searchtype=author&query=Averbeck%2C+R">R. Averbeck</a>, <a href="/search/nucl-ex?searchtype=author&query=Azmi%2C+M+D">M. D. Azmi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bailhache%2C+R">R. Bailhache</a>, <a href="/search/nucl-ex?searchtype=author&query=Bala%2C+R">R. Bala</a>, <a href="/search/nucl-ex?searchtype=author&query=Barioglio%2C+L">L. Barioglio</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnaf%C3%B6ldi%2C+G+G">G. G. Barnaf枚ldi</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnby%2C+L+S">L. S. Barnby</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="1902.01211v2-abstract-short" style="display: inline;"> The present document discusses plans for a compact, next-generation multi-purpose detector at the LHC as a follow-up to the present ALICE experiment. The aim is to build a nearly massless barrel detector consisting of truly cylindrical layers based on curved wafer-scale ultra-thin silicon sensors with MAPS technology, featuring an unprecedented low material budget of 0.05% X$_0$ per layer, with th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1902.01211v2-abstract-full').style.display = 'inline'; document.getElementById('1902.01211v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1902.01211v2-abstract-full" style="display: none;"> The present document discusses plans for a compact, next-generation multi-purpose detector at the LHC as a follow-up to the present ALICE experiment. The aim is to build a nearly massless barrel detector consisting of truly cylindrical layers based on curved wafer-scale ultra-thin silicon sensors with MAPS technology, featuring an unprecedented low material budget of 0.05% X$_0$ per layer, with the innermost layers possibly positioned inside the beam pipe. In addition to superior tracking and vertexing capabilities over a wide momentum range down to a few tens of MeV/$c$, the detector will provide particle identification via time-of-flight determination with about 20~ps resolution. In addition, electron and photon identification will be performed in a separate shower detector. The proposed detector is conceived for studies of pp, pA and AA collisions at luminosities a factor of 20 to 50 times higher than possible with the upgraded ALICE detector, enabling a rich physics program ranging from measurements with electromagnetic probes at ultra-low transverse momenta to precision physics in the charm and beauty sector. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1902.01211v2-abstract-full').style.display = 'none'; document.getElementById('1902.01211v2-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 May, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 31 January, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 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">Input to the 2020 Update of the European Particle Physics Strategy</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1810.10159">arXiv:1810.10159</a> <span> [<a href="https://arxiv.org/pdf/1810.10159">pdf</a>, <a href="https://arxiv.org/ps/1810.10159">ps</a>, <a href="https://arxiv.org/format/1810.10159">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> </div> </div> <p class="title is-5 mathjax"> Measurements of Dielectron Production in Au$+$Au Collisions at $\sqrt{s_{NN}}$= 27, 39, and 62.4 GeV from the STAR Experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoyama%2C+R">R. Aoyama</a>, <a href="/search/nucl-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/nucl-ex?searchtype=author&query=Atetalla%2C+F">F. Atetalla</a>, <a href="/search/nucl-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bassill%2C+A+J">A. J. Bassill</a>, <a href="/search/nucl-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</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="1810.10159v1-abstract-short" style="display: inline;"> We report systematic measurements of dielectron ($e^{\pm}e^{\pm}$) invariant-mass $M_{ee}$ spectra at mid-rapidity in Au+Au collisions at $\sqrt{s_{NN}}$ = 27, 39, and 62.4 GeV taken with the STAR detector at the Relativistic Heavy Ion Collider. For all energies studied, a significant excess yield of dielectrons is observed in the low-mass region (0.40$ < M_{ee} < 0.75$ MeV/$c^2$) compared to hadr… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1810.10159v1-abstract-full').style.display = 'inline'; document.getElementById('1810.10159v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1810.10159v1-abstract-full" style="display: none;"> We report systematic measurements of dielectron ($e^{\pm}e^{\pm}$) invariant-mass $M_{ee}$ spectra at mid-rapidity in Au+Au collisions at $\sqrt{s_{NN}}$ = 27, 39, and 62.4 GeV taken with the STAR detector at the Relativistic Heavy Ion Collider. For all energies studied, a significant excess yield of dielectrons is observed in the low-mass region (0.40$ < M_{ee} < 0.75$ MeV/$c^2$) compared to hadronic cocktail simulations at freeze-out. Models that include an in-medium broadening of the $蟻$-meson spectral function consistently describe the observed excess. In addition, we report acceptance-corrected dielectron-excess spectra for Au+Au collisions at mid-rapidity ($\left|y_{ee}\right|$ $<$ 1) in the 0$-$80% centrality bin for each collision energy. The integrated excess yields for $0.4 < M_{ee} < 0.75\ \textrm{GeV}/c^{2}$, normalized by the charged particle multiplicity at mid-rapidity, are compared with previously published measurements for Au+Au at $\sqrt{s_{NN}}$ = 19.6 and 200 GeV. The normalized excess yields in the low-mass region show no significant collision energy dependence. The data, however, are consistent with model calculations that demonstrate a modest energy dependence. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1810.10159v1-abstract-full').style.display = 'none'; document.getElementById('1810.10159v1-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 October, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2018. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1809.08737">arXiv:1809.08737</a> <span> [<a href="https://arxiv.org/pdf/1809.08737">pdf</a>, <a href="https://arxiv.org/ps/1809.08737">ps</a>, <a href="https://arxiv.org/format/1809.08737">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> </div> </div> <p class="title is-5 mathjax"> Erratum: Observation of $D^0$ meson nuclear modifications in Au+Au collisions at $\sqrt{s_{_{\mathrm{NN}}}}$ = 200 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoyama%2C+R">R. Aoyama</a>, <a href="/search/nucl-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/nucl-ex?searchtype=author&query=Atetalla%2C+F">F. Atetalla</a>, <a href="/search/nucl-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bassill%2C+A+J">A. J. Bassill</a>, <a href="/search/nucl-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</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="1809.08737v1-abstract-short" style="display: inline;"> In this erratum we report changes on the $D^0$ $p_T$ spectra and nuclear modification factor ($R_{AA}$) in Au+Au collisions at $\sqrt{s_{_{\mathrm{NN}}}}$ = 200 GeV by fixing the errors in the efficiency and selection criteria that affected the Au+Au results. The p+p reference spectrum has changed as well and is updated with new fragmentation parameters. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1809.08737v1-abstract-full" style="display: none;"> In this erratum we report changes on the $D^0$ $p_T$ spectra and nuclear modification factor ($R_{AA}$) in Au+Au collisions at $\sqrt{s_{_{\mathrm{NN}}}}$ = 200 GeV by fixing the errors in the efficiency and selection criteria that affected the Au+Au results. The p+p reference spectrum has changed as well and is updated with new fragmentation parameters. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1809.08737v1-abstract-full').style.display = 'none'; document.getElementById('1809.08737v1-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 September, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2018. </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">5 pages, 3 figures, erratum for Phys. Rev. Lett. 113,142301 (2014)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1808.07629">arXiv:1808.07629</a> <span> [<a href="https://arxiv.org/pdf/1808.07629">pdf</a>, <a href="https://arxiv.org/format/1808.07629">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 Astrophysical Phenomena">astro-ph.HE</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.99.032004">10.1103/PhysRevD.99.032004 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurements using the inelasticity distribution of multi-TeV neutrino interactions in IceCube </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=IceCube+Collaboration"> IceCube Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Aartsen%2C+M+G">M. G. Aartsen</a>, <a href="/search/nucl-ex?searchtype=author&query=Ackermann%2C+M">M. Ackermann</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J">J. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Aguilar%2C+J+A">J. A. Aguilar</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahlers%2C+M">M. Ahlers</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahrens%2C+M">M. Ahrens</a>, <a href="/search/nucl-ex?searchtype=author&query=Samarai%2C+I+A">I. Al Samarai</a>, <a href="/search/nucl-ex?searchtype=author&query=Altmann%2C+D">D. Altmann</a>, <a href="/search/nucl-ex?searchtype=author&query=Andeen%2C+K">K. Andeen</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+T">T. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Ansseau%2C+I">I. Ansseau</a>, <a href="/search/nucl-ex?searchtype=author&query=Anton%2C+G">G. Anton</a>, <a href="/search/nucl-ex?searchtype=author&query=Arg%C3%BCelles%2C+C">C. Arg眉elles</a>, <a href="/search/nucl-ex?searchtype=author&query=Auffenberg%2C+J">J. Auffenberg</a>, <a href="/search/nucl-ex?searchtype=author&query=Axani%2C+S">S. Axani</a>, <a href="/search/nucl-ex?searchtype=author&query=Backes%2C+P">P. Backes</a>, <a href="/search/nucl-ex?searchtype=author&query=Bagherpour%2C+H">H. Bagherpour</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbano%2C+A">A. Barbano</a>, <a href="/search/nucl-ex?searchtype=author&query=Barron%2C+J+P">J. P. Barron</a>, <a href="/search/nucl-ex?searchtype=author&query=Barwick%2C+S+W">S. W. Barwick</a>, <a href="/search/nucl-ex?searchtype=author&query=Baum%2C+V">V. Baum</a>, <a href="/search/nucl-ex?searchtype=author&query=Bay%2C+R">R. Bay</a>, <a href="/search/nucl-ex?searchtype=author&query=Beatty%2C+J+J">J. J. Beatty</a> , et al. (309 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="1808.07629v2-abstract-short" style="display: inline;"> Inelasticity--the fraction of a neutrino's energy transferred to hadrons--is a quantity of interest in the study of astrophysical and atmospheric neutrino interactions at multi-TeV energies with IceCube. In this work, a sample of contained neutrino interactions in IceCube is obtained from 5 years of data and classified as 2650 tracks and 965 cascades. Tracks arise predominantly from charged-curren… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1808.07629v2-abstract-full').style.display = 'inline'; document.getElementById('1808.07629v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1808.07629v2-abstract-full" style="display: none;"> Inelasticity--the fraction of a neutrino's energy transferred to hadrons--is a quantity of interest in the study of astrophysical and atmospheric neutrino interactions at multi-TeV energies with IceCube. In this work, a sample of contained neutrino interactions in IceCube is obtained from 5 years of data and classified as 2650 tracks and 965 cascades. Tracks arise predominantly from charged-current $谓_渭$ interactions, and we demonstrate that we can reconstruct their energy and inelasticity. The inelasticity distribution is found to be consistent with the calculation of Cooper-Sarkar et al. across the energy range from $\sim$ 1 TeV to $\sim$ 100 TeV. Along with cascades from neutrinos of all flavors, we also perform a fit over the energy, zenith angle, and inelasticity distribution to characterize the flux of astrophysical and atmospheric neutrinos. The energy spectrum of diffuse astrophysical neutrinos is well-described by a power-law in both track and cascade samples, and a best-fit index $纬=2.62\pm0.07$ is found in the energy range from 3.5 TeV to 2.6 PeV. Limits are set on the astrophysical flavor composition that are compatible with a ratio of $\left(\frac{1}{3}:\frac{1}{3}:\frac{1}{3}\right)_{\oplus}$. Exploiting the distinct inelasticity distribution of $谓_渭$ and $\bar谓_渭$ interactions, the atmospheric $谓_渭$ to $\bar谓_渭$ flux ratio in the energy range from 770 GeV to 21 TeV is found to be $0.77^{+0.44}_{-0.25}$ times the calculation by Honda et al. Lastly, the inelasticity distribution is also sensitive to neutrino charged-current charm production. The data are consistent with a leading-order calculation, with zero charm production excluded at $91\%$ confidence level. Future analyses of inelasticity distributions may probe new physics that affects neutrino interactions both in and beyond the Standard Model. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1808.07629v2-abstract-full').style.display = 'none'; document.getElementById('1808.07629v2-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> 24 February, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 August, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2018. </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, 13 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 99, 032004 (2019) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1806.02295">arXiv:1806.02295</a> <span> [<a href="https://arxiv.org/pdf/1806.02295">pdf</a>, <a href="https://arxiv.org/format/1806.02295">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/PhysRevLett.121.132301">10.1103/PhysRevLett.121.132301 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Low-$p_T$ $e^{+}e^{-}$ pair production in Au$+$Au collisions at $\sqrt{s_{NN}}$ = 200 GeV and U$+$U collisions at $\sqrt{s_{NN}}$ = 193 GeV at STAR </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoyama%2C+R">R. Aoyama</a>, <a href="/search/nucl-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/nucl-ex?searchtype=author&query=Atetalla%2C+F">F. Atetalla</a>, <a href="/search/nucl-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bassill%2C+A+J">A. J. Bassill</a>, <a href="/search/nucl-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a> , et al. (325 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="1806.02295v3-abstract-short" style="display: inline;"> We report first measurements of $e^{+}e^{-}$ pair production in the mass region 0.4 $<M_{ee}<$ 2.6 GeV/$c^{2}$ at low transverse momentum ($p_T<$ 0.15 GeV/$c$) in non-central Au$+$Au collisions at $\sqrt{s_{NN}}$ = 200 GeV and U$+$U collisions at $\sqrt{s_{NN}}$ = 193 GeV. Significant enhancement factors, expressed as ratios of data over known hadronic contributions, are observed in the 40-80% cen… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1806.02295v3-abstract-full').style.display = 'inline'; document.getElementById('1806.02295v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1806.02295v3-abstract-full" style="display: none;"> We report first measurements of $e^{+}e^{-}$ pair production in the mass region 0.4 $<M_{ee}<$ 2.6 GeV/$c^{2}$ at low transverse momentum ($p_T<$ 0.15 GeV/$c$) in non-central Au$+$Au collisions at $\sqrt{s_{NN}}$ = 200 GeV and U$+$U collisions at $\sqrt{s_{NN}}$ = 193 GeV. Significant enhancement factors, expressed as ratios of data over known hadronic contributions, are observed in the 40-80% centrality of these collisions. The excess yields peak distinctly at low-$p_T$ with a width ($\sqrt{\langle p^2_T\rangle}$) between 40 to 60 MeV/$c$. The absolute cross section of the excess depends weakly on centrality while those from a theoretical model calculation incorporating an in-medium broadened $蟻$ spectral function and radiation from a Quark Gluon Plasma or hadronic cocktail contributions increase dramatically with increasing number of participant nucleons. Model calculations of photon-photon interactions generated by the initial projectile and target nuclei describe the observed excess yields but fail to reproduce the $p^{2}_{T}$ distributions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1806.02295v3-abstract-full').style.display = 'none'; document.getElementById('1806.02295v3-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, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 6 June, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 121, 132301 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1805.09745">arXiv:1805.09745</a> <span> [<a href="https://arxiv.org/pdf/1805.09745">pdf</a>, <a href="https://arxiv.org/format/1805.09745">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.98.032013">10.1103/PhysRevD.98.032013 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Longitudinal Double-Spin Asymmetries for $蟺^{0}$s in the Forward Direction for 510 GeV Polarized $pp$ Collisions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoyama%2C+R">R. Aoyama</a>, <a href="/search/nucl-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/nucl-ex?searchtype=author&query=Atetalla%2C+F">F. Atetalla</a>, <a href="/search/nucl-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bassill%2C+A+J">A. J. Bassill</a>, <a href="/search/nucl-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a> , et al. (324 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="1805.09745v3-abstract-short" style="display: inline;"> The STAR Collaboration reports measurements of the longitudinal double-spin asymmetry, $A_{LL}$, for neutral pions produced at forward directions in polarized proton-proton collisions, at a center-of-mass energy of $510$ GeV. Results are given for transverse momenta in the range $2<p_{T}<10$ GeV/$c$ within two regions of pseudorapidity that span $2.65<畏<3.9$. These results are sensitive to the pol… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1805.09745v3-abstract-full').style.display = 'inline'; document.getElementById('1805.09745v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1805.09745v3-abstract-full" style="display: none;"> The STAR Collaboration reports measurements of the longitudinal double-spin asymmetry, $A_{LL}$, for neutral pions produced at forward directions in polarized proton-proton collisions, at a center-of-mass energy of $510$ GeV. Results are given for transverse momenta in the range $2<p_{T}<10$ GeV/$c$ within two regions of pseudorapidity that span $2.65<畏<3.9$. These results are sensitive to the polarized gluon parton distribution function, $螖g(x)$, down to the region of Bjorken $x \sim 10^{-3}$. The asymmetries observed are less than $\pm 5 \cdot 10^{-3}$ in magnitude, and will help constrain the contribution to the spin of the proton from polarized gluons at low $x$, when combined with other measurements as part of a global analysis. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1805.09745v3-abstract-full').style.display = 'none'; document.getElementById('1805.09745v3-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 June, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 24 May, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 98, 032013 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1805.09742">arXiv:1805.09742</a> <span> [<a href="https://arxiv.org/pdf/1805.09742">pdf</a>, <a href="https://arxiv.org/ps/1805.09742">ps</a>, <a href="https://arxiv.org/format/1805.09742">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.98.032011">10.1103/PhysRevD.98.032011 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Longitudinal Double-Spin Asymmetries for Dijet Production at Intermediate Pseudorapidity in Polarized $pp$ Collisions at $\sqrt{s}$ = 200 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoyama%2C+R">R. Aoyama</a>, <a href="/search/nucl-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/nucl-ex?searchtype=author&query=Atetalla%2C+F">F. Atetalla</a>, <a href="/search/nucl-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bassill%2C+A+J">A. J. Bassill</a>, <a href="/search/nucl-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a> , et al. (324 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="1805.09742v3-abstract-short" style="display: inline;"> We present the first measurements of the longitudinal double-spin asymmetry $A_{LL}$ for dijets with at least one jet reconstructed within the pseudorapidity range $0.8 < 畏< 1.8$. The dijets were measured in polarized $pp$ collisions at a center-of-mass energy $\sqrt{s}$ = 200 GeV. Values for $A_{LL}$ are determined for several distinct event topologies, defined by the jet pseudorapidities, and sp… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1805.09742v3-abstract-full').style.display = 'inline'; document.getElementById('1805.09742v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1805.09742v3-abstract-full" style="display: none;"> We present the first measurements of the longitudinal double-spin asymmetry $A_{LL}$ for dijets with at least one jet reconstructed within the pseudorapidity range $0.8 < 畏< 1.8$. The dijets were measured in polarized $pp$ collisions at a center-of-mass energy $\sqrt{s}$ = 200 GeV. Values for $A_{LL}$ are determined for several distinct event topologies, defined by the jet pseudorapidities, and span a range of parton momentum fraction $x$ down to $x \sim$ 0.01. The measured asymmetries are found to be consistent with the predictions of global analyses that incorporate the results of previous RHIC measurements. They will provide new constraints on $螖g(x)$ in this poorly constrained region when included in future global analyses. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1805.09742v3-abstract-full').style.display = 'none'; document.getElementById('1805.09742v3-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 July, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 24 May, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 98, 032011 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1805.04400">arXiv:1805.04400</a> <span> [<a href="https://arxiv.org/pdf/1805.04400">pdf</a>, <a href="https://arxiv.org/ps/1805.04400">ps</a>, <a href="https://arxiv.org/format/1805.04400">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> </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.98.014910">10.1103/PhysRevC.98.014910 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Global polarization of $螞$ hyperons in Au+Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoyama%2C+R">R. Aoyama</a>, <a href="/search/nucl-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/nucl-ex?searchtype=author&query=Atetalla%2C+F">F. Atetalla</a>, <a href="/search/nucl-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bassill%2C+A+J">A. J. Bassill</a>, <a href="/search/nucl-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a> , et al. (324 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="1805.04400v2-abstract-short" style="display: inline;"> Global polarization of $螞$ hyperons has been measured to be of the order of a few tenths of a percent in Au+Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV, with no significant difference between $螞$ and $\bar螞$. These new results reveal the collision energy dependence of the global polarization together with the results previously observed at $\sqrt{s_{_{NN}}}$ = 7.7 -- 62.4 GeV and indicate notice… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1805.04400v2-abstract-full').style.display = 'inline'; document.getElementById('1805.04400v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1805.04400v2-abstract-full" style="display: none;"> Global polarization of $螞$ hyperons has been measured to be of the order of a few tenths of a percent in Au+Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV, with no significant difference between $螞$ and $\bar螞$. These new results reveal the collision energy dependence of the global polarization together with the results previously observed at $\sqrt{s_{_{NN}}}$ = 7.7 -- 62.4 GeV and indicate noticeable vorticity of the medium created in non-central heavy-ion collisions at the highest RHIC collision energy. The signal is in rough quantitative agreement with the theoretical predictions from a hydrodynamic model and from the AMPT (A Multi-Phase Transport) model. The polarization is larger in more peripheral collisions, and depends weakly on the hyperon's transverse momentum and pseudorapidity $畏^H$ within $|畏^H|<1$. An indication of the polarization dependence on the event-by-event charge asymmetry is observed at the $2蟽$ level, suggesting a possible contribution to the polarization from the axial current induced by the initial magnetic field. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1805.04400v2-abstract-full').style.display = 'none'; document.getElementById('1805.04400v2-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, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 11 May, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2018. </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">11 pages, 8 figures, Accepted for publication in 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 98, 014910 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1805.03745">arXiv:1805.03745</a> <span> [<a href="https://arxiv.org/pdf/1805.03745">pdf</a>, <a href="https://arxiv.org/format/1805.03745">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"> $J/蠄$ production cross section and its dependence on charged-particle multiplicity in $p+p$ collisions at $\sqrt{s}$ = 200 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoyama%2C+R">R. Aoyama</a>, <a href="/search/nucl-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/nucl-ex?searchtype=author&query=Atetalla%2C+F">F. Atetalla</a>, <a href="/search/nucl-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bassill%2C+A+J">A. J. Bassill</a>, <a href="/search/nucl-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a> , et al. (325 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="1805.03745v2-abstract-short" style="display: inline;"> We present a measurement of inclusive $J/蠄$ production at mid-rapidity ($|y|<1$) in $p+p$ collisions at a center-of-mass energy of $\sqrt{s}$ = 200 GeV with the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The differential production cross section for $J/蠄$ as a function of transverse momentum ($p_T$) for $0<p_T<14$ GeV/$c$ and the total cross section are reported and compared to… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1805.03745v2-abstract-full').style.display = 'inline'; document.getElementById('1805.03745v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1805.03745v2-abstract-full" style="display: none;"> We present a measurement of inclusive $J/蠄$ production at mid-rapidity ($|y|<1$) in $p+p$ collisions at a center-of-mass energy of $\sqrt{s}$ = 200 GeV with the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The differential production cross section for $J/蠄$ as a function of transverse momentum ($p_T$) for $0<p_T<14$ GeV/$c$ and the total cross section are reported and compared to calculations from the color evaporation model and the non-relativistic Quantum Chromodynamics model. The dependence of $J/蠄$ relative yields in three $p_T$ intervals on charged-particle multiplicity at mid-rapidity is measured for the first time in $p+p$ collisions at $\sqrt{s}$ = 200 GeV and compared with that measured at $\sqrt{s}$ = 7 TeV, PYTHIA8 and EPOS3 Monte Carlo generators, and the Percolation model prediction. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1805.03745v2-abstract-full').style.display = 'none'; document.getElementById('1805.03745v2-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 September, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 May, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2018. </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, 4 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/1804.08647">arXiv:1804.08647</a> <span> [<a href="https://arxiv.org/pdf/1804.08647">pdf</a>, <a href="https://arxiv.org/ps/1804.08647">ps</a>, <a href="https://arxiv.org/format/1804.08647">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> </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.2018.07.013">10.1016/j.physletb.2018.07.013 <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 rapidity-even dipolar flow in Au+Au collisions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoyama%2C+R">R. Aoyama</a>, <a href="/search/nucl-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/nucl-ex?searchtype=author&query=Atetalla%2C+F">F. Atetalla</a>, <a href="/search/nucl-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bassill%2C+A">AJ Bassill</a>, <a href="/search/nucl-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a> , et al. (325 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="1804.08647v2-abstract-short" style="display: inline;"> New measurements of directed flow for charged hadrons, characterized by the Fourier coefficient \vone, are presented for transverse momenta $\mathrm{p_T}$, and centrality intervals in Au+Au collisions recorded by the STAR experiment for the center-of-mass energy range $\mathrm{\sqrt{s_{_{NN}}}} = 7.7 - 200$ GeV. The measurements underscore the importance of momentum conservation and the characteri… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1804.08647v2-abstract-full').style.display = 'inline'; document.getElementById('1804.08647v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1804.08647v2-abstract-full" style="display: none;"> New measurements of directed flow for charged hadrons, characterized by the Fourier coefficient \vone, are presented for transverse momenta $\mathrm{p_T}$, and centrality intervals in Au+Au collisions recorded by the STAR experiment for the center-of-mass energy range $\mathrm{\sqrt{s_{_{NN}}}} = 7.7 - 200$ GeV. The measurements underscore the importance of momentum conservation and the characteristic dependencies on $\mathrm{\sqrt{s_{_{NN}}}}$, centrality and $\mathrm{p_T}$ are consistent with the expectations of geometric fluctuations generated in the initial stages of the collision, acting in concert with a hydrodynamic-like expansion. The centrality and $\mathrm{p_T}$ dependencies of $\mathrm{v^{even}_{1}}$, as well as an observed similarity between its excitation function and that for $\mathrm{v_3}$, could serve as constraints for initial-state models. The $\mathrm{v^{even}_{1}}$ excitation function could also provide an important supplement to the flow measurements employed for precision extraction of the temperature dependence of the specific shear viscosity. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1804.08647v2-abstract-full').style.display = 'none'; document.getElementById('1804.08647v2-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 May, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 April, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2018. </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, four figures, submitted for publication</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1803.03876">arXiv:1803.03876</a> <span> [<a href="https://arxiv.org/pdf/1803.03876">pdf</a>, <a href="https://arxiv.org/ps/1803.03876">ps</a>, <a href="https://arxiv.org/format/1803.03876">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"> Correlation Measurements Between Flow Harmonics in Au+Au Collisions at RHIC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoyama%2C+R">R. Aoyama</a>, <a href="/search/nucl-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/nucl-ex?searchtype=author&query=Atetalla%2C+F">F. Atetalla</a>, <a href="/search/nucl-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bassill%2C+A+J">A. J. Bassill</a>, <a href="/search/nucl-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a> , et al. (325 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="1803.03876v3-abstract-short" style="display: inline;"> Flow harmonics ($v_n$) in the Fourier expansion of the azimuthal distribution of particles are widely used to quantify the anisotropy in particle emission in high-energy heavy-ion collisions. The symmetric cumulants, $SC(m,n)$, are used to measure the correlations between different orders of flow harmonics. These correlations are used to constrain the initial conditions and the transport propertie… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1803.03876v3-abstract-full').style.display = 'inline'; document.getElementById('1803.03876v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1803.03876v3-abstract-full" style="display: none;"> Flow harmonics ($v_n$) in the Fourier expansion of the azimuthal distribution of particles are widely used to quantify the anisotropy in particle emission in high-energy heavy-ion collisions. The symmetric cumulants, $SC(m,n)$, are used to measure the correlations between different orders of flow harmonics. These correlations are used to constrain the initial conditions and the transport properties of the medium in theoretical models. In this Letter, we present the first measurements of the four-particle symmetric cumulants in Au+Au collisions at $\sqrt{s_{NN}}$ = 39 and 200 GeV from data collected by the STAR experiment at RHIC. We observe that $v_{2}$ and $v_{3}$ are anti-correlated in all centrality intervals with similar correlation strengths from 39 GeV Au+Au to 2.76 TeV Pb+Pb (measured by the ALICE experiment). The $v_{2}$-$v_{4}$ correlation seems to be stronger at 39 GeV than at higher collision energies. The initial-stage anti-correlations between second and third order eccentricities are sufficient to describe the measured correlations between $v_{2}$ and $v_{3}$. The best description of $v_{2}$-$v_{4}$ correlations at $\sqrt{s_{NN}}$ = 200 GeV is obtained with inclusion of the system's nonlinear response to initial eccentricities accompanied by the viscous effect with $畏/s$ $>$ 0.08. Theoretical calculations using different initial conditions, equations of state and viscous coefficients need to be further explored to extract $畏/s$ of the medium created at RHIC. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1803.03876v3-abstract-full').style.display = 'none'; document.getElementById('1803.03876v3-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> 24 July, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 March, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2018. </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">4 figures, Accepted for publication in Physics Letter B, and final 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/1712.07009">arXiv:1712.07009</a> <span> [<a href="https://arxiv.org/pdf/1712.07009">pdf</a>, <a href="https://arxiv.org/format/1712.07009">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> </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.97.065204">10.1103/PhysRevC.97.065204 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for three-nucleon short-range correlations in light nuclei </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Ye%2C+Z">Z. Ye</a>, <a href="/search/nucl-ex?searchtype=author&query=Solvignon%2C+P">P. Solvignon</a>, <a href="/search/nucl-ex?searchtype=author&query=Nguyen%2C+D">D. Nguyen</a>, <a href="/search/nucl-ex?searchtype=author&query=Aguilera%2C+P">P. Aguilera</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahmed%2C+Z">Z. Ahmed</a>, <a href="/search/nucl-ex?searchtype=author&query=Albataineh%2C+H">H. Albataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Allada%2C+K">K. Allada</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+B">B. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Anez%2C+D">D. Anez</a>, <a href="/search/nucl-ex?searchtype=author&query=Aniol%2C+K">K. Aniol</a>, <a href="/search/nucl-ex?searchtype=author&query=Annand%2C+J">J. Annand</a>, <a href="/search/nucl-ex?searchtype=author&query=Arrington%2C+J">J. Arrington</a>, <a href="/search/nucl-ex?searchtype=author&query=Averett%2C+T">T. Averett</a>, <a href="/search/nucl-ex?searchtype=author&query=Baghdasaryan%2C+H">H. Baghdasaryan</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Beck%2C+A">A. Beck</a>, <a href="/search/nucl-ex?searchtype=author&query=Beck%2C+S">S. Beck</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellini%2C+V">V. Bellini</a>, <a href="/search/nucl-ex?searchtype=author&query=Benmokhtar%2C+F">F. Benmokhtar</a>, <a href="/search/nucl-ex?searchtype=author&query=Camsonne%2C+A">A. Camsonne</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+C">C. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+J+-">J. -P. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Chirapatpimol%2C+K">K. Chirapatpimol</a>, <a href="/search/nucl-ex?searchtype=author&query=Cisbani%2C+E">E. Cisbani</a>, <a href="/search/nucl-ex?searchtype=author&query=Dalton%2C+M+M">M. M. Dalton</a> , et al. (78 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="1712.07009v2-abstract-short" style="display: inline;"> We present new data probing short-range correlations (SRCs) in nuclei through the measurement of electron scattering off high-momentum nucleons in nuclei. The inclusive 4He/3He cross section ratio is observed to be both x and Q2 independent for 1.5 < x < 2, confirming the dominance of two- nucleon (2N) short-range correlations (SRCs). For x > 2, our data do not support a previous claim of three-nu… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1712.07009v2-abstract-full').style.display = 'inline'; document.getElementById('1712.07009v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1712.07009v2-abstract-full" style="display: none;"> We present new data probing short-range correlations (SRCs) in nuclei through the measurement of electron scattering off high-momentum nucleons in nuclei. The inclusive 4He/3He cross section ratio is observed to be both x and Q2 independent for 1.5 < x < 2, confirming the dominance of two- nucleon (2N) short-range correlations (SRCs). For x > 2, our data do not support a previous claim of three-nucleon (3N) correlation dominance. While contributions beyond those from stationary 2N- SRCs are observed, our data show that isolating 3N-SRCs is more complicated than for 2N-SRCs. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1712.07009v2-abstract-full').style.display = 'none'; document.getElementById('1712.07009v2-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 June, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 19 December, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2017. </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, 2 figures, new experimental results from JLab E08-014</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 97, 065204 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1712.01332">arXiv:1712.01332</a> <span> [<a href="https://arxiv.org/pdf/1712.01332">pdf</a>, <a href="https://arxiv.org/ps/1712.01332">ps</a>, <a href="https://arxiv.org/format/1712.01332">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> </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.98.014915">10.1103/PhysRevC.98.014915 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Azimuthal anisotropy in Cu+Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoyama%2C+R">R. Aoyama</a>, <a href="/search/nucl-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Ashraf%2C+M+U">M. U. Ashraf</a>, <a href="/search/nucl-ex?searchtype=author&query=Attri%2C+A">A. Attri</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Behera%2C+A">A. Behera</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhattarai%2C+P">P. Bhattarai</a> , et al. (329 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="1712.01332v2-abstract-short" style="display: inline;"> The azimuthal anisotropic flow of identified and unidentified charged particles has been systematically studied in Cu+Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV for harmonics $n=$ 1-4 in the pseudorapidity range $|畏|<1$. The directed flow in Cu+Au collisions is compared with the rapidity-odd and, for the first time, the rapidity-even components of charged particle directed flow in Au+Au collisi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1712.01332v2-abstract-full').style.display = 'inline'; document.getElementById('1712.01332v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1712.01332v2-abstract-full" style="display: none;"> The azimuthal anisotropic flow of identified and unidentified charged particles has been systematically studied in Cu+Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV for harmonics $n=$ 1-4 in the pseudorapidity range $|畏|<1$. The directed flow in Cu+Au collisions is compared with the rapidity-odd and, for the first time, the rapidity-even components of charged particle directed flow in Au+Au collisions at $\sqrt{s_{_{NN}}}$ = 200~GeV. The slope of the directed flow pseudorapidity dependence in Cu+Au collisions is found to be similar to that in Au+Au collisions, with the intercept shifted toward positive $畏$ values, i.e., the Cu-going direction. The mean transverse momentum projected onto the spectator plane, $\langle p_x\rangle$, in Cu+Au collision also exhibits approximately linear dependence on $畏$ with the intercept at about $畏\approx-0.4$, closer to the rapidity of the Cu+Au system center-of-mass. The observed dependencies find natural explanation in a picture of the directed flow originating partly due the "tilted source" and partly due to the rapidity dependent asymmetry in the initial density distribution. Charge-dependence of the $\langle p_x\rangle$ was also observed in Cu+Au collisions, indicating an effect of the initial electric field created by charge difference of the spectator protons in two colliding nuclei. The rapidity-even component of directed flow in Au+Au collisions is close to that in Pb+Pb collisions at $\sqrt{s_{_{NN}}}$ = 2.76 TeV, indicating a similar magnitude of dipole-like fluctuations in the initial-state density distribution. Higher harmonic flow in Cu+Au collisions exhibits similar trends to those observed in Au+Au and Pb+Pb collisions and is qualitatively reproduced by a viscous hydrodynamic model and a multi-phase transport model. For all harmonics with $n\ge2$ we observe an approximate scaling of $v_n$ with the number of constituent quarks. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1712.01332v2-abstract-full').style.display = 'none'; document.getElementById('1712.01332v2-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, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 4 December, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2017. </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, 19 figures, Accepted for publication in 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 98, 014915 (2018) </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=Bai%2C+X&start=50" class="pagination-next" >Next </a> <ul class="pagination-list"> <li> <a href="/search/?searchtype=author&query=Bai%2C+X&start=0" class="pagination-link is-current" aria-label="Goto page 1">1 </a> </li> <li> <a href="/search/?searchtype=author&query=Bai%2C+X&start=50" class="pagination-link " aria-label="Page 2" aria-current="page">2 </a> </li> <li> <a href="/search/?searchtype=author&query=Bai%2C+X&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> <footer> <div 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