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class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2502.03537">arXiv:2502.03537</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2502.03537">pdf</a>, <a href="https://arxiv.org/format/2502.03537">other</a>]&nbsp;</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="Atomic Physics">physics.atom-ph</span> </div> </div> <p class="title is-5 mathjax"> Probing new hadronic forces with heavy exotic atoms </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=Liu%2C+H">Hongkai Liu</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ohayon%2C+B">Ben Ohayon</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Shtaif%2C+O">Omer Shtaif</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Soreq%2C+Y">Yotam Soreq</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="2502.03537v1-abstract-short" style="display: inline;"> We explore the potential of precision spectroscopy of heavy exotic atoms where electrons are substituted by negative hadrons to detect new force carriers with hadronic couplings. The selected transitions are unaffected by nuclear contact terms, thus enabling highly accurate calculations using bound-state QED, provided that the nuclear polarization is under control. Alternatively, we demonstrate th&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2502.03537v1-abstract-full').style.display = 'inline'; document.getElementById('2502.03537v1-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2502.03537v1-abstract-full" style="display: none;"> We explore the potential of precision spectroscopy of heavy exotic atoms where electrons are substituted by negative hadrons to detect new force carriers with hadronic couplings. The selected transitions are unaffected by nuclear contact terms, thus enabling highly accurate calculations using bound-state QED, provided that the nuclear polarization is under control. Alternatively, we demonstrate that the dipole polarizability, a fundamental property of nuclei, can be extracted from the spectroscopy of exotic atoms in a novel way by combining two transitions while maintaining high sensitivity to new physics. Based on existing data, we extracted world-leading bounds on mediator masses ranging from $0.1\,$MeV to $10\,$MeV for two benchmark models and show that forthcoming experiments could enhance the sensitivity to new physics by two orders of magnitude. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2502.03537v1-abstract-full').style.display = 'none'; document.getElementById('2502.03537v1-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 5 February, 2025; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2025. </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, 3 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/2412.17887">arXiv:2412.17887</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2412.17887">pdf</a>, <a href="https://arxiv.org/format/2412.17887">other</a>]&nbsp;</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> <p class="title is-5 mathjax"> Detectors for next-generation quasi-free scattering experiments </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=Tanaka%2C+J">Junki Tanaka</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cort%C3%A9s%2C+M+L">Martha Liliana Cort茅s</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Liu%2C+H">Hongna Liu</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Taniuchi%2C+R">Ryo Taniuchi</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="2412.17887v1-abstract-short" style="display: inline;"> Quasi-free scattering of atomic nuclei away from the stability line has reached several milestones over the past decade. The advent of gamma, charged particles, and neutron detection devices for inverse kinematics, especially in combination with RI beams, has opened new horizons in nuclear physics. Research is progressing with detection devices optimized to explore these new and challenging area o&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.17887v1-abstract-full').style.display = 'inline'; document.getElementById('2412.17887v1-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2412.17887v1-abstract-full" style="display: none;"> Quasi-free scattering of atomic nuclei away from the stability line has reached several milestones over the past decade. The advent of gamma, charged particles, and neutron detection devices for inverse kinematics, especially in combination with RI beams, has opened new horizons in nuclear physics. Research is progressing with detection devices optimized to explore these new and challenging area of physics. While some of the new detection developments aim for high energy and angular resolution, others focus on the increasing detection efficiency or enhancing large angular acceptance. As high-intensity RI beams become available worldwide, we reflect on past detectors and provide a review of the future development of the detection devices. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.17887v1-abstract-full').style.display = 'none'; document.getElementById('2412.17887v1-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 December, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 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">Contribution to review article collection for the Symposium &#34;Direct reaction and spectroscopy with hydrogen targets: past 10 years at the RIBF and future prospects&#34;. to be submitted to PTEP</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2412.17588">arXiv:2412.17588</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2412.17588">pdf</a>, <a href="https://arxiv.org/format/2412.17588">other</a>]&nbsp;</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> <p class="title is-5 mathjax"> Shell Migration at N = 32, 34 around Ca Region </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=Liu%2C+H">Hongna Liu</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Chen%2C+S">Sidong Chen</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Browne%2C+F">Frank Browne</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="2412.17588v1-abstract-short" style="display: inline;"> The neutron numbers N = 32 and 34 are new magic numbers suggested in neutron-rich $pf$-shell nuclei. In this article, we discuss the experimental observables and state-of-the-art theoretical calculations that characterize and explain the shell evolution leading to new magic numbers. Particular focus shall be afforded to the experimental progress of the shell migration study at and beyond N = 32, 3&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.17588v1-abstract-full').style.display = 'inline'; document.getElementById('2412.17588v1-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2412.17588v1-abstract-full" style="display: none;"> The neutron numbers N = 32 and 34 are new magic numbers suggested in neutron-rich $pf$-shell nuclei. In this article, we discuss the experimental observables and state-of-the-art theoretical calculations that characterize and explain the shell evolution leading to new magic numbers. Particular focus shall be afforded to the experimental progress of the shell migration study at and beyond N = 32, 34 in Ar, K, Ca, and Sc isotopes at the RIBF using direct reactions with liquid hydrogen targets over the past ten years. The results prove the double magicity of \ts{52,54}Ca, and support the persistence of the N = 34 subshell closure below Z = 20 with a sharp weakening beyond Z = 20. Future measurements of intruder bands of N = 32, 34 nuclei and shell evolution towards N = 40 are discussed within the context of an upgraded RIBF facility and the development of novel detection systems. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.17588v1-abstract-full').style.display = 'none'; document.getElementById('2412.17588v1-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 December, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 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">This article is part of a review collection from the &#39;&#39;Symposium Direct reactions and spectroscopy with hydrogen targets: past 10 years at the RIBF and future prospects&#39;&#39;, to be submitted to PTEP</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2412.03602">arXiv:2412.03602</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2412.03602">pdf</a>, <a href="https://arxiv.org/format/2412.03602">other</a>]&nbsp;</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.110.064301">10.1103/PhysRevC.110.064301 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Spectroscopy of $^{52}$K </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=Enciu%2C+M">M. Enciu</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Obertelli%2C+A">A. Obertelli</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Doornenbal%2C+P">P. Doornenbal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Heinz%2C+M">M. Heinz</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Miyagi%2C+T">T. Miyagi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Nowacki%2C+F">F. Nowacki</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ogata%2C+K">K. Ogata</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Poves%2C+A">A. Poves</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Schwenk%2C+A">A. Schwenk</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Yoshida%2C+K">K. Yoshida</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Achouri%2C+N+L">N. L. Achouri</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Baba%2C+H">H. Baba</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Browne%2C+F">F. Browne</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Calvet%2C+D">D. Calvet</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ch%C3%A2teau%2C+F">F. Ch芒teau</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Chen%2C+S">S. Chen</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Chiga%2C+N">N. Chiga</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Corsi%2C+A">A. Corsi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cort%C3%A9s%2C+M+L">M. L. Cort茅s</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Delbart%2C+A">A. Delbart</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Gheller%2C+J+-">J. -M. Gheller</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Giganon%2C+A">A. Giganon</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Gillibert%2C+A">A. Gillibert</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Hilaire%2C+C">C. Hilaire</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Isobe%2C+T">T. Isobe</a> , et al. (56 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="2412.03602v1-abstract-short" style="display: inline;"> The first spectroscopy of $^{52}$K was investigated via in-beam $纬$-ray spectroscopy at the RIKEN Radioactive Isotope Beam Factory after one-proton and one-neutron knockout from $^{53}$Ca and $^{53}$K beams impinging on a 15-cm liquid hydrogen target at $\approx$ 230~MeV/nucleon. The energy level scheme of $^{52}$K was built using single $纬$ and $纬$-$纬$ coincidence spectra. The spins and parities&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.03602v1-abstract-full').style.display = 'inline'; document.getElementById('2412.03602v1-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2412.03602v1-abstract-full" style="display: none;"> The first spectroscopy of $^{52}$K was investigated via in-beam $纬$-ray spectroscopy at the RIKEN Radioactive Isotope Beam Factory after one-proton and one-neutron knockout from $^{53}$Ca and $^{53}$K beams impinging on a 15-cm liquid hydrogen target at $\approx$ 230~MeV/nucleon. The energy level scheme of $^{52}$K was built using single $纬$ and $纬$-$纬$ coincidence spectra. The spins and parities of the excited states were established based on momentum distributions of the fragment after the knockout reaction and based on exclusive cross sections. The results were compared to state-of-the-art shell model calculations with the SDPF-Umod interaction and ab initio IMSRG calculations with chiral effective field theory nucleon-nucleon and three-nucleon forces. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.03602v1-abstract-full').style.display = 'none'; document.getElementById('2412.03602v1-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 3 December, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 110, 064301 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2410.16086">arXiv:2410.16086</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2410.16086">pdf</a>, <a href="https://arxiv.org/format/2410.16086">other</a>]&nbsp;</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="Solar and Stellar Astrophysics">astro-ph.SR</span> </div> </div> <p class="title is-5 mathjax"> Enhanced $S$-factor for the $^{14}$N$(p,纬)^{15}$O reaction and its impact on the solar composition problem </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=Chen%2C+X">X. Chen</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Su%2C+J">J. Su</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Shen%2C+Y+P">Y. P. Shen</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Zhang%2C+L+Y">L. Y. Zhang</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=He%2C+J+J">J. J. He</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Chen%2C+S+Z">S. Z. Chen</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Wang%2C+S">S. Wang</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Shen%2C+Z+L">Z. L. Shen</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Lin%2C+S">S. Lin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Song%2C+L+Y">L. Y. Song</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Zhang%2C+H">H. Zhang</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Wang%2C+L+H">L. H. Wang</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Jiang%2C+X+Z">X. Z. Jiang</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Wang%2C+L">L. Wang</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Huang%2C+Y+T">Y. T. Huang</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Qin%2C+Z+W">Z. W. Qin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Liu%2C+F+C">F. C. Liu</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Sheng%2C+Y+D">Y. D. Sheng</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Chen%2C+Y+J">Y. J. Chen</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Lu%2C+Y+L">Y. L. Lu</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Li%2C+X+Y">X. Y. Li</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Dong%2C+J+Y">J. Y. Dong</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Jiang%2C+Y+C">Y. C. Jiang</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Zhang%2C+Y+Q">Y. Q. Zhang</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Zhang%2C+Y">Y. Zhang</a> , et al. (23 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="2410.16086v1-abstract-short" style="display: inline;"> The solar composition problem has puzzled astrophysicists for more than 20 years. Recent measurements of carbon-nitrogen-oxygen (CNO) neutrinos by the Borexino experiment show a $\sim2蟽$ tension with the &#34;low-metallicity&#34; determinations. $^{14}$N$(p,纬)^{15}$O, the slowest reaction in the CNO cycle, plays a crucial role in the standard solar model (SSM) calculations of CNO neutrino fluxes. Here we&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.16086v1-abstract-full').style.display = 'inline'; document.getElementById('2410.16086v1-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2410.16086v1-abstract-full" style="display: none;"> The solar composition problem has puzzled astrophysicists for more than 20 years. Recent measurements of carbon-nitrogen-oxygen (CNO) neutrinos by the Borexino experiment show a $\sim2蟽$ tension with the &#34;low-metallicity&#34; determinations. $^{14}$N$(p,纬)^{15}$O, the slowest reaction in the CNO cycle, plays a crucial role in the standard solar model (SSM) calculations of CNO neutrino fluxes. Here we report a direct measurement of the $^{14}$N$(p,纬)^{15}$O reaction, in which $S$-factors for all transitions were simultaneously determined in the energy range of $E_p=110-260$ keV for the first time. Our results resolve previous discrepancies in the ground-state transition, yielding a zero-energy $S$-factor $S_{114}(0) = 1.92\pm0.08$ keV b which is 14% higher than the $1.68\pm0.14$ keV b recommended in Solar Fusion III (SF-III). With our $S_{114}$ values, the SSM B23-GS98, and the latest global analysis of solar neutrino measurements, the C and N photospheric abundance determined by the Borexino experiment is updated to $N_{\mathrm{CN}}=({4.45}^{+0.69}_{-0.61})\times10^{-4}$. This new $N_{\mathrm{CN}}$ value agrees well with latest &#34;high-metallicity&#34; composition, however, is also consistent with the &#34;low-metallicity&#34; determination within $\sim 1蟽$ C.L., indicating that the solar metallicity problem remains an open question. In addition, the significant reduction in the uncertainty of $S_{114}$ paves the way for the precise determination of the CN abundance in future large-volume solar neutrino measurements. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.16086v1-abstract-full').style.display = 'none'; document.getElementById('2410.16086v1-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 October, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2410.13515">arXiv:2410.13515</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2410.13515">pdf</a>, <a href="https://arxiv.org/format/2410.13515">other</a>]&nbsp;</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 - Lattice">hep-lat</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> </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/10.1038/s41467-024-55042-y">10.1038/s41467-024-55042-y <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of a rare beta decay of the charmed baryon with a Graph Neural Network </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Afedulidis%2C+O">O. Afedulidis</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=An%2C+Q">Q. An</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bai%2C+Y">Y. Bai</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bakina%2C+O">O. Bakina</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Balossino%2C+I">I. Balossino</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ban%2C+Y">Y. Ban</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bao%2C+H+-">H. -R. Bao</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Batozskaya%2C+V">V. Batozskaya</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Berger%2C+N">N. Berger</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bianco%2C+E">E. Bianco</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bortone%2C+A">A. Bortone</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Boyko%2C+I">I. Boyko</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Briere%2C+R+A">R. A. Briere</a> , et al. (637 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="2410.13515v2-abstract-short" style="display: inline;"> The beta decay of the lightest charmed baryon $螞_c^+$ provides unique insights into the fundamental mechanism of strong and electro-weak interactions, serving as a testbed for investigating non-perturbative quantum chromodynamics and constraining the Cabibbo-Kobayashi-Maskawa (CKM) matrix parameters. This article presents the first observation of the Cabibbo-suppressed decay&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.13515v2-abstract-full').style.display = 'inline'; document.getElementById('2410.13515v2-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2410.13515v2-abstract-full" style="display: none;"> The beta decay of the lightest charmed baryon $螞_c^+$ provides unique insights into the fundamental mechanism of strong and electro-weak interactions, serving as a testbed for investigating non-perturbative quantum chromodynamics and constraining the Cabibbo-Kobayashi-Maskawa (CKM) matrix parameters. This article presents the first observation of the Cabibbo-suppressed decay $螞_c^+ \rightarrow n e^+ 谓_{e}$, utilizing $4.5~\mathrm{fb}^{-1}$ of electron-positron annihilation data collected with the BESIII detector. A novel Graph Neural Network based technique effectively separates signals from dominant backgrounds, notably $螞_c^+ \rightarrow 螞e^+ 谓_{e}$, achieving a statistical significance exceeding $10蟽$. The absolute branching fraction is measured to be $(3.57\pm0.34_{\mathrm{stat.}}\pm0.14_{\mathrm{syst.}})\times 10^{-3}$. For the first time, the CKM matrix element $\left|V_{cd}\right|$ is extracted via a charmed baryon decay as $0.208\pm0.011_{\rm exp.}\pm0.007_{\rm LQCD}\pm0.001_{蟿_{螞_c^+}}$. This work highlights a new approach to further understand fundamental interactions in the charmed baryon sector, and showcases the power of modern machine learning techniques in experimental high-energy physics. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.13515v2-abstract-full').style.display = 'none'; document.getElementById('2410.13515v2-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 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">27 pages, 5 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nature Commun. 16, 681 (2025) </p> </li> <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>&nbsp;[<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>]&nbsp;</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&amp;query=Abrams%2C+D">D. Abrams</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Albataineh%2C+H">H. Albataineh</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aljawrneh%2C+B+S">B. S. Aljawrneh</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alsalmi%2C+S">S. Alsalmi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Androic%2C+D">D. Androic</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aniol%2C+K">K. Aniol</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Armstrong%2C+W">W. Armstrong</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Arrington%2C+J">J. Arrington</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Atac%2C+H">H. Atac</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Averett%2C+T">T. Averett</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Gayoso%2C+C+A">C. Ayerbe Gayoso</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bane%2C+J">J. Bane</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Barcus%2C+S">S. Barcus</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Beck%2C+A">A. Beck</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bellini%2C+V">V. Bellini</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhatt%2C+H">H. Bhatt</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhetuwal%2C+D">D. Bhetuwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Biswas%2C+D">D. Biswas</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Blyth%2C+D">D. Blyth</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Boeglin%2C+W">W. Boeglin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bulumulla%2C+D">D. Bulumulla</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Butler%2C+J">J. Butler</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Camsonne%2C+A">A. Camsonne</a>, <a href="/search/nucl-ex?searchtype=author&amp;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&hellip; <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';">&#9661; 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';">&#9651; 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/2407.10339">arXiv:2407.10339</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2407.10339">pdf</a>, <a href="https://arxiv.org/format/2407.10339">other</a>]&nbsp;</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="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Solar and Stellar Astrophysics">astro-ph.SR</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="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Supernova Pointing Capabilities of DUNE </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=DUNE+Collaboration"> DUNE Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abud%2C+A+A">A. Abed Abud</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abi%2C+B">B. Abi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adames%2C+M+R">M. R. Adames</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adamov%2C+G">G. Adamov</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adamowski%2C+M">M. Adamowski</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adams%2C+D">D. Adams</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adriano%2C+C">C. Adriano</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aduszkiewicz%2C+A">A. Aduszkiewicz</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aguilar%2C+J">J. Aguilar</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aimard%2C+B">B. Aimard</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Akbar%2C+F">F. Akbar</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Allison%2C+K">K. Allison</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alrashed%2C+M">M. Alrashed</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alton%2C+A">A. Alton</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alvarez%2C+R">R. Alvarez</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alves%2C+T">T. Alves</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amar%2C+H">H. Amar</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amedo%2C+P">P. Amedo</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Anderson%2C+J">J. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Andrade%2C+D+A">D. A. Andrade</a> , et al. (1340 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="2407.10339v1-abstract-short" style="display: inline;"> The determination of the direction of a stellar core collapse via its neutrino emission is crucial for the identification of the progenitor for a multimessenger follow-up. A highly effective method of reconstructing supernova directions within the Deep Underground Neutrino Experiment (DUNE) is introduced. The supernova neutrino pointing resolution is studied by simulating and reconstructing electr&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.10339v1-abstract-full').style.display = 'inline'; document.getElementById('2407.10339v1-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2407.10339v1-abstract-full" style="display: none;"> The determination of the direction of a stellar core collapse via its neutrino emission is crucial for the identification of the progenitor for a multimessenger follow-up. A highly effective method of reconstructing supernova directions within the Deep Underground Neutrino Experiment (DUNE) is introduced. The supernova neutrino pointing resolution is studied by simulating and reconstructing electron-neutrino charged-current absorption on $^{40}$Ar and elastic scattering of neutrinos on electrons. Procedures to reconstruct individual interactions, including a newly developed technique called ``brems flipping&#39;&#39;, as well as the burst direction from an ensemble of interactions are described. Performance of the burst direction reconstruction is evaluated for supernovae happening at a distance of 10 kpc for a specific supernova burst flux model. The pointing resolution is found to be 3.4 degrees at 68% coverage for a perfect interaction-channel classification and a fiducial mass of 40 kton, and 6.6 degrees for a 10 kton fiducial mass respectively. Assuming a 4% rate of charged-current interactions being misidentified as elastic scattering, DUNE&#39;s burst pointing resolution is found to be 4.3 degrees (8.7 degrees) at 68% coverage. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.10339v1-abstract-full').style.display = 'none'; document.getElementById('2407.10339v1-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">25 pages, 16 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-24-0319-LBNF </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2407.04529">arXiv:2407.04529</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2407.04529">pdf</a>, <a href="https://arxiv.org/format/2407.04529">other</a>]&nbsp;</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.2024.138828">10.1016/j.physletb.2024.138828 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Spectroscopy of deeply bound orbitals in neutron-rich Ca isotopes </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=Li%2C+P+J">P. J. Li</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Lee%2C+J">J. Lee</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Doornenbal%2C+P">P. Doornenbal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Chen%2C+S">S. Chen</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Wang%2C+S">S. Wang</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Obertelli%2C+A">A. Obertelli</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Chazono%2C+Y">Y. Chazono</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Holt%2C+J+D">J. D. Holt</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Hu%2C+B+S">B. S. Hu</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ogata%2C+K">K. Ogata</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Utsuno%2C+Y">Y. Utsuno</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Yoshida%2C+K">K. Yoshida</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Achouri%2C+N+L">N. L. Achouri</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Baba%2C+H">H. Baba</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Browne%2C+F">F. Browne</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Calvet%2C+D">D. Calvet</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ch%C3%A2teau%2C+F">F. Ch芒teau</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Chiga%2C+N">N. Chiga</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Corsi%2C+A">A. Corsi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cort%C3%A9s%2C+M+L">M. L. Cort茅s</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Delbart%2C+A">A. Delbart</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Gheller%2C+J">J-M. Gheller</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Giganon%2C+A">A. Giganon</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Gillibert%2C+A">A. Gillibert</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Hilaire%2C+C">C. Hilaire</a> , et al. (63 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="2407.04529v1-abstract-short" style="display: inline;"> The calcium isotopes are an ideal system to investigate the evolution of shell structure and magic numbers. Although the properties of surface nucleons in calcium have been well studied, probing the structure of deeply bound nucleons remains a challenge. Here, we report on the first measurement of unbound states in $^{53}$Ca and $^{55}$Ca, populated from \ts{54,56}Ca($p,pn$) reactions at a beam en&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.04529v1-abstract-full').style.display = 'inline'; document.getElementById('2407.04529v1-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2407.04529v1-abstract-full" style="display: none;"> The calcium isotopes are an ideal system to investigate the evolution of shell structure and magic numbers. Although the properties of surface nucleons in calcium have been well studied, probing the structure of deeply bound nucleons remains a challenge. Here, we report on the first measurement of unbound states in $^{53}$Ca and $^{55}$Ca, populated from \ts{54,56}Ca($p,pn$) reactions at a beam energy of around 216 MeV/nucleon at the RIKEN Radioactive Isotopes Beam Factory. The resonance properties, partial cross sections, and momentum distributions of these unbound states were analyzed. Orbital angular momentum $l$ assignments were extracted from momentum distributions based on calculations using the distorted wave impulse approximation (DWIA) reaction model. The resonances at excitation energies of 5516(41)\,keV in $^{53}$Ca and 6000(250)\,keV in $^{55}$Ca indicate a significant $l$\, =\,3 component, providing the first experimental evidence for the $谓0f_{7/2}$ single-particle strength of unbound hole states in the neutron-rich Ca isotopes. The observed excitation energies and cross-sections point towards extremely localized and well separated strength distributions, with some fragmentation for the $谓0f_{7/2}$ orbital in $^{55}$Ca. These results are in good agreement with predictions from shell-model calculations using the effective GXPF1Bs interaction and \textit{ab initio} calculations and diverge markedly from the experimental distributions in the nickel isotones at $Z=28$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.04529v1-abstract-full').style.display = 'none'; document.getElementById('2407.04529v1-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 5 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">13 pages, 7 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Lett. B, 855 (2024),138828 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2406.08301">arXiv:2406.08301</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2406.08301">pdf</a>, <a href="https://arxiv.org/format/2406.08301">other</a>]&nbsp;</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.110.044901">10.1103/PhysRevC.110.044901 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Jet modification via $蟺^0$-hadron correlations 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&amp;query=PHENIX+Collaboration"> PHENIX Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abdulameer%2C+N+J">N. J. Abdulameer</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Acharya%2C+U">U. Acharya</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adare%2C+A">A. Adare</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Afanasiev%2C+S">S. Afanasiev</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Al-Bataineh%2C+H">H. Al-Bataineh</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alexander%2C+J">J. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alfred%2C+M">M. Alfred</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Apadula%2C+N">N. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aphecetche%2C+L">L. Aphecetche</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Asai%2C+J">J. Asai</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Asano%2C+H">H. Asano</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Averbeck%2C+R">R. Averbeck</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Awes%2C+T+C">T. C. Awes</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Azmoun%2C+B">B. Azmoun</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Babintsev%2C+V">V. Babintsev</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bai%2C+M">M. Bai</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Baksay%2C+G">G. Baksay</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Baksay%2C+L">L. Baksay</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Baldisseri%2C+A">A. Baldisseri</a> , et al. (511 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="2406.08301v2-abstract-short" style="display: inline;"> High-momentum two-particle correlations are a useful tool for studying jet-quenching effects in the quark-gluon plasma. Angular correlations between neutral-pion triggers and charged hadrons with transverse momenta in the range 4--12~GeV/$c$ and 0.5--7~GeV/$c$, respectively, have been measured by the PHENIX experiment in 2014 for Au$+$Au collisions at $\sqrt{s_{_{NN}}}=200$~GeV. Suppression is obs&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.08301v2-abstract-full').style.display = 'inline'; document.getElementById('2406.08301v2-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2406.08301v2-abstract-full" style="display: none;"> High-momentum two-particle correlations are a useful tool for studying jet-quenching effects in the quark-gluon plasma. Angular correlations between neutral-pion triggers and charged hadrons with transverse momenta in the range 4--12~GeV/$c$ and 0.5--7~GeV/$c$, respectively, have been measured by the PHENIX experiment in 2014 for Au$+$Au collisions at $\sqrt{s_{_{NN}}}=200$~GeV. Suppression is observed in the yield of high-momentum jet fragments opposite the trigger particle, which indicates jet suppression stemming from in-medium partonic energy loss, while enhancement is observed for low-momentum particles. The ratio and differences between the yield in Au$+$Au collisions and $p$$+$$p$ collisions, $I_{AA}$ and $螖_{AA}$, as a function of the trigger-hadron azimuthal separation, $螖蠁$, are measured for the first time at the Relativistic Heavy Ion Collider. These results better quantify how the yield of low-$p_T$ associated hadrons is enhanced at wide angle, which is crucial for studying energy loss as well as medium-response effects. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.08301v2-abstract-full').style.display = 'none'; document.getElementById('2406.08301v2-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 October, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 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">535 authors from 84 institutions, 12 pages, 8 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 110, 044901 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2404.16235">arXiv:2404.16235</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2404.16235">pdf</a>, <a href="https://arxiv.org/format/2404.16235">other</a>]&nbsp;</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> <p class="title is-5 mathjax"> Inclusive studies of two- and three-nucleon short-range correlations in $^3$H and $^3$He </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=Li%2C+S">S. Li</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Santiesteban%2C+S+N">S. N. Santiesteban</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Arrington%2C+J">J. Arrington</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cruz-Torres%2C+R">R. Cruz-Torres</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Kurbany%2C+L">L. Kurbany</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abrams%2C+D">D. Abrams</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alsalmi%2C+S">S. Alsalmi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Androic%2C+D">D. Androic</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aniol%2C+K">K. Aniol</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Averett%2C+T">T. Averett</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Gayoso%2C+C+A">C. Ayerbe Gayoso</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bane%2C+J">J. Bane</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Barcus%2C+S">S. Barcus</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Barrow%2C+J">J. Barrow</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Beck%2C+A">A. Beck</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bellini%2C+V">V. Bellini</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhatt%2C+H">H. Bhatt</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhetuwal%2C+D">D. Bhetuwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Biswas%2C+D">D. Biswas</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bulumulla%2C+D">D. Bulumulla</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Camsonne%2C+A">A. Camsonne</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Castellanos%2C+J">J. Castellanos</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Chen%2C+J">J. Chen</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Chen%2C+J">J-P. Chen</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Chrisman%2C+D">D. Chrisman</a> , et al. (91 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="2404.16235v1-abstract-short" style="display: inline;"> Inclusive electron scattering at carefully chosen kinematics can isolate scattering from short-range correlations (SRCs), produced through hard, short-distance interactions of nucleons in the nucleus. Because the two-nucleon (2N) SRCs arise from the same N-N interaction in all nuclei, the cross section in the SRC-dominated regime is identical up to an overall scaling factor, and the A/2H cross sec&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.16235v1-abstract-full').style.display = 'inline'; document.getElementById('2404.16235v1-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2404.16235v1-abstract-full" style="display: none;"> Inclusive electron scattering at carefully chosen kinematics can isolate scattering from short-range correlations (SRCs), produced through hard, short-distance interactions of nucleons in the nucleus. Because the two-nucleon (2N) SRCs arise from the same N-N interaction in all nuclei, the cross section in the SRC-dominated regime is identical up to an overall scaling factor, and the A/2H cross section ratio is constant in this region. This scaling behavior has been used to identify SRC dominance and to map out the contribution of SRCs for a wide range of nuclei. We examine this scaling behavior at lower momentum transfers using new data on $^2$H, $^3$H, and $^3$He which show that the scaling region is larger than in heavy nuclei. Based on the improved scaling, especially for $^3$H/$^3$He, we examine the ratios at kinematics where three-nucleon SRCs may play an important role. The data for the largest initial nucleon momenta are consistent with isolation of scattering from 3N-SRCs, and suggest that the very-highest momentum nucleons in $^3$He have a nearly isospin-independent momentum configuration, or a small enhancement of the proton distribution. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.16235v1-abstract-full').style.display = 'none'; document.getElementById('2404.16235v1-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 April, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2404.08784">arXiv:2404.08784</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2404.08784">pdf</a>, <a href="https://arxiv.org/format/2404.08784">other</a>]&nbsp;</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.110.044908">10.1103/PhysRevC.110.044908 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Correlations of event activity with hard and soft processes in $p$ + Au collisions at $\sqrt{s_\mathrm{NN}}$ = 200 GeV at STAR </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhosale%2C+S+R">S. R. Bhosale</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Brandenburg%2C+J+D">J. D. Brandenburg</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Broodo%2C+C">C. Broodo</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cai%2C+X+Z">X. Z. Cai</a> , et al. (338 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="2404.08784v2-abstract-short" style="display: inline;"> With the STAR experiment at the BNL Relativisic Heavy Ion Collider, we characterize $\sqrt{s_\mathrm{NN}}$ = 200 GeV p+Au collisions by event activity (EA) measured within the pseudorapidity range $eta$ $in$ [-5, -3.4] in the Au-going direction and report correlations between this EA and hard- and soft- scale particle production at midrapidity ($畏$ $\in$ [-1, 1]). At the soft scale, charged partic&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.08784v2-abstract-full').style.display = 'inline'; document.getElementById('2404.08784v2-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2404.08784v2-abstract-full" style="display: none;"> With the STAR experiment at the BNL Relativisic Heavy Ion Collider, we characterize $\sqrt{s_\mathrm{NN}}$ = 200 GeV p+Au collisions by event activity (EA) measured within the pseudorapidity range $eta$ $in$ [-5, -3.4] in the Au-going direction and report correlations between this EA and hard- and soft- scale particle production at midrapidity ($畏$ $\in$ [-1, 1]). At the soft scale, charged particle production in low-EA p+Au collisions is comparable to that in p+p collisions and increases monotonically with increasing EA. At the hard scale, we report measurements of high transverse momentum (pT) jets in events of different EAs. In contrast with the soft particle production, high-pT particle production and EA are found to be inversely related. To investigate whether this is a signal of jet quenching in high-EA events, we also report ratios of pT imbalance and azimuthal separation of dijets in high- and low-EA events. Within our measurement precision, no significant differences are observed, disfavoring the presence of jet quenching in the highest 30% EA p+Au collisions at $\sqrt{s_\mathrm{NN}}$ = 200 GeV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.08784v2-abstract-full').style.display = 'none'; document.getElementById('2404.08784v2-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 October, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 April, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 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">12 page, 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 110, 044908 Published 16 October 2024 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2403.01173">arXiv:2403.01173</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2403.01173">pdf</a>, <a href="https://arxiv.org/format/2403.01173">other</a>]&nbsp;</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"> Electroproduction of the Lambda/Sigma^0 hyperons at Q^2~0.5 (GeV/c)^2 at forward angles </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=Okuyama%2C+K">K. Okuyama</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Itabashi%2C+K">K. Itabashi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Nagao%2C+S">S. Nagao</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Nakamura%2C+S+N">S. N. Nakamura</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Suzuki%2C+K+N">K. N. Suzuki</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Gogami%2C+T">T. Gogami</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Pandey%2C+B">B. Pandey</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Tang%2C+L">L. Tang</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Byd%C5%BEovsk%C3%BD%2C+P">P. Byd啪ovsk媒</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Skoupil%2C+D">D. Skoupil</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Mart%2C+T">T. Mart</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abrams%2C+D">D. Abrams</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Akiyama%2C+T">T. Akiyama</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Androic%2C+D">D. Androic</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aniol%2C+K">K. Aniol</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Gayoso%2C+C+A">C. Ayerbe Gayoso</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bane%2C+J">J. Bane</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Barcus%2C+S">S. Barcus</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Barrow%2C+J">J. Barrow</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bellini%2C+V">V. Bellini</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhatt%2C+H">H. Bhatt</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhetuwal%2C+D">D. Bhetuwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Biswas%2C+D">D. Biswas</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Camsonne%2C+A">A. Camsonne</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Castellanos%2C+J">J. Castellanos</a> , et al. (61 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="2403.01173v5-abstract-short" style="display: inline;"> In 2018, the E12-17-003 experiment was conducted at the Thomas Jefferson National Accelerator Facility (JLab) to explore the possible existence of an nnLambda state in the reconstructed missing mass distribution from a tritium gas target [K. N. Suzuki et al., Prog. Theor. Exp. Phys. 2022, 013D01 (2022), B. Pandey et al., Phys. Rev. C 105, L051001 (2022)]. As part of this investigation, data was al&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2403.01173v5-abstract-full').style.display = 'inline'; document.getElementById('2403.01173v5-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2403.01173v5-abstract-full" style="display: none;"> In 2018, the E12-17-003 experiment was conducted at the Thomas Jefferson National Accelerator Facility (JLab) to explore the possible existence of an nnLambda state in the reconstructed missing mass distribution from a tritium gas target [K. N. Suzuki et al., Prog. Theor. Exp. Phys. 2022, 013D01 (2022), B. Pandey et al., Phys. Rev. C 105, L051001 (2022)]. As part of this investigation, data was also collected using a gaseous hydrogen target, not only for a precise absolute mass scale calibration but also for the study of Lambda/Sigma^0 electroproduction. This dataset was acquired at Q^2~0.5 (GeV/c)^2, W=2.14 GeV, and theta_{gamma K}^{c.m.}~8 deg. It covers forward angles where photoproduction data is scarce and a low-Q^2 region that is of interest for hypernuclear experiments. On the other hand, this kinematic region is at a slightly higher Q^2 than previous hypernuclear experiments, thus providing crucial information for understanding the Q^2 dependence of the differential cross sections for Lambda/Sigma^0 hyperon electroproduction. This paper reports on the Q^2 dependence of the differential cross section for the e + p -&gt; e&#39; + K^+ + Lambda/Sigma^0 reaction in the 0.2-0.8 (GeV/c)^2, and provides comparisons with the currently available theoretical models. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2403.01173v5-abstract-full').style.display = 'none'; document.getElementById('2403.01173v5-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 March, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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">11 pages, 15 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/2402.16135">arXiv:2402.16135</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2402.16135">pdf</a>, <a href="https://arxiv.org/format/2402.16135">other</a>]&nbsp;</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.109.024323">10.1103/PhysRevC.109.024323 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Ultra-High precision Compton polarimetry at 2 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=Zec%2C+A">A. Zec</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Premathilake%2C+S">S. Premathilake</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cornejo%2C+J+C">J. C. Cornejo</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Dalton%2C+M+M">M. M. Dalton</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Gal%2C+C">C. Gal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Gaskell%2C+D">D. Gaskell</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Gericke%2C+M">M. Gericke</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Halilovic%2C+I">I. Halilovic</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Liu%2C+H">H. Liu</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Mammei%2C+J">J. Mammei</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Michaels%2C+R">R. Michaels</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Palatchi%2C+C">C. Palatchi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Pan%2C+J">J. Pan</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Paschke%2C+K+D">K. D. Paschke</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Quinn%2C+B">B. Quinn</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Zhang%2C+J">J. 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="2402.16135v1-abstract-short" style="display: inline;"> We report a high precision measurement of electron beam polarization using Compton polarimetry. The measurement was made in experimental Hall A at Jefferson Lab during the CREX experiment in 2020. A total uncertainty of dP/P=0.36% was achieved detecting the back-scattered photons from the Compton scattering process. This is the highest accuracy in a measurement of electron beam polarization using&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.16135v1-abstract-full').style.display = 'inline'; document.getElementById('2402.16135v1-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2402.16135v1-abstract-full" style="display: none;"> We report a high precision measurement of electron beam polarization using Compton polarimetry. The measurement was made in experimental Hall A at Jefferson Lab during the CREX experiment in 2020. A total uncertainty of dP/P=0.36% was achieved detecting the back-scattered photons from the Compton scattering process. This is the highest accuracy in a measurement of electron beam polarization using Compton scattering ever reported, surpassing the ground-breaking measurement from the SLAC Large Detector (SLD) Compton polarimeter. Such uncertainty reaches the level required for the future flagship measurements to be made by the MOLLER and SoLID experiments. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.16135v1-abstract-full').style.display = 'none'; document.getElementById('2402.16135v1-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 25 February, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 109, 024323 2024 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2402.15077">arXiv:2402.15077</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2402.15077">pdf</a>, <a href="https://arxiv.org/format/2402.15077">other</a>]&nbsp;</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"> The Pixel Charging-up effect in Gas Micro-Pixel Detectors </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=Yi%2C+D">Difan Yi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Liu%2C+Q">Qian Liu</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Liu%2C+H">Hongbang Liu</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Xie%2C+F">Fei Xie</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Feng%2C+H">Huanbo Feng</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Zhou%2C+L">Lin Zhou</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Feng%2C+Z">Zuke Feng</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Zheng%2C+Y">Yangheng Zheng</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="2402.15077v2-abstract-short" style="display: inline;"> This study investigates the charging-up effect on the Topmetal-II- chip in Gas Micro-Pixel Detectors(GMPD). It is found that this effect differs from the charging-up typically observed in gas detector multiplier devices and increases the relative gain of the detector. The research indicates that this effect originates from the accumulation of charges on the insulating layer of the chip&#39;s pixel sur&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.15077v2-abstract-full').style.display = 'inline'; document.getElementById('2402.15077v2-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2402.15077v2-abstract-full" style="display: none;"> This study investigates the charging-up effect on the Topmetal-II- chip in Gas Micro-Pixel Detectors(GMPD). It is found that this effect differs from the charging-up typically observed in gas detector multiplier devices and increases the relative gain of the detector. The research indicates that this effect originates from the accumulation of charges on the insulating layer of the chip&#39;s pixel surface. Iterative simulations using COMSOL and GARFIELD++ are employed to model the variation of detector relative gain with the charging-up effect, and a simple yet effective model is proposed, which aligns well with experimental data. The feasibility of validating the deposition of resistive materials and adjusting the local voltage distribution on the chip to suppress charging-up effects and enhance the relative gain is also verified. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.15077v2-abstract-full').style.display = 'none'; document.getElementById('2402.15077v2-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 5 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 February, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2402.14975">arXiv:2402.14975</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2402.14975">pdf</a>, <a href="https://arxiv.org/format/2402.14975">other</a>]&nbsp;</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.132.242301">10.1103/PhysRevLett.132.242301 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Modification of $蠂_{c1}$(3872) and $蠄$(2$S$) production in $p$Pb collisions at $\sqrt{s_{NN}} = 8.16$ TeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aaij%2C+R">R. Aaij</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adeva%2C+B">B. Adeva</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Akar%2C+S">S. Akar</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Akiba%2C+K">K. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alessio%2C+F">F. Alessio</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alexander%2C+M">M. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amalric%2C+R">R. Amalric</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amato%2C+S">S. Amato</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amhis%2C+Y">Y. Amhis</a> , et al. (1082 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2402.14975v2-abstract-short" style="display: inline;"> The LHCb collaboration measures production of the exotic hadron $蠂_{c1}$(3872) in proton-nucleus collisions for the first time. Comparison with the charmonium state $蠄$(2$S$) suggests that the exotic $蠂_{c1}$(3872) experiences different dynamics in the nuclear medium than conventional hadrons, and comparison with data from proton-proton collisions indicates that the presence of the nucleus may mod&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.14975v2-abstract-full').style.display = 'inline'; document.getElementById('2402.14975v2-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2402.14975v2-abstract-full" style="display: none;"> The LHCb collaboration measures production of the exotic hadron $蠂_{c1}$(3872) in proton-nucleus collisions for the first time. Comparison with the charmonium state $蠄$(2$S$) suggests that the exotic $蠂_{c1}$(3872) experiences different dynamics in the nuclear medium than conventional hadrons, and comparison with data from proton-proton collisions indicates that the presence of the nucleus may modify $蠂_{c1}$(3872) production rates. This is the first measurement of the nuclear modification factor of an exotic hadron. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.14975v2-abstract-full').style.display = 'none'; document.getElementById('2402.14975v2-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 February, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2023-026.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2023-026, CERN-EP-2024-033 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 132 (2024) 242301 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2401.11342">arXiv:2401.11342</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2401.11342">pdf</a>, <a href="https://arxiv.org/format/2401.11342">other</a>]&nbsp;</span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP04(2024)111">10.1007/JHEP04(2024)111 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Prompt and nonprompt $蠄(2S)$ production in $p$Pb collisions at $\sqrt{s_{NN}}=8.16$ TeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aaij%2C+R">R. Aaij</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adeva%2C+B">B. Adeva</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Akar%2C+S">S. Akar</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Akiba%2C+K">K. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alessio%2C+F">F. Alessio</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alexander%2C+M">M. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amalric%2C+R">R. Amalric</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amato%2C+S">S. Amato</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amey%2C+J+L">J. L. Amey</a> , et al. (1079 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2401.11342v2-abstract-short" style="display: inline;"> The production of $蠄(2S)$ mesons in proton-lead collisions at a centre-of-mass energy per nucleon pair of $\sqrt{s_{NN}}=8.16$ TeV is studied with the LHCb detector using data corresponding to an integrated luminosity of 34 nb$^{-1}$. The prompt and nonprompt $蠄(2S)$ production cross-sections and the ratio of the $蠄(2S)$ to $J/蠄$ cross-section are measured as a function of the meson transverse mom&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.11342v2-abstract-full').style.display = 'inline'; document.getElementById('2401.11342v2-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2401.11342v2-abstract-full" style="display: none;"> The production of $蠄(2S)$ mesons in proton-lead collisions at a centre-of-mass energy per nucleon pair of $\sqrt{s_{NN}}=8.16$ TeV is studied with the LHCb detector using data corresponding to an integrated luminosity of 34 nb$^{-1}$. The prompt and nonprompt $蠄(2S)$ production cross-sections and the ratio of the $蠄(2S)$ to $J/蠄$ cross-section are measured as a function of the meson transverse momentum and rapidity in the nucleon-nucleon centre-of-mass frame, together with forward-to-backward ratios and nuclear modification factors. The production of prompt $蠄(2S)$ is observed to be more suppressed compared to $pp$ collisions than the prompt $J/蠄$ production, while the nonprompt productions have similar suppression factors. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.11342v2-abstract-full').style.display = 'none'; document.getElementById('2401.11342v2-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 April, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 20 January, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2023-024.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2023-024, CERN-EP-2023-293 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 04 (2024) 111 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2401.09012">arXiv:2401.09012</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2401.09012">pdf</a>, <a href="https://arxiv.org/format/2401.09012">other</a>]&nbsp;</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"> First study of antihyperon-nucleon scattering $\bar螞p\rightarrow\bar螞p$ and measurement of $螞p\rightarrow螞p$ cross section </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Afedulidis%2C+O">O. Afedulidis</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=An%2C+Q">Q. An</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bai%2C+Y">Y. Bai</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bakina%2C+O">O. Bakina</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Balossino%2C+I">I. Balossino</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ban%2C+Y">Y. Ban</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bao%2C+H+-">H. -R. Bao</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Batozskaya%2C+V">V. Batozskaya</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Berger%2C+N">N. Berger</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bianco%2C+E">E. Bianco</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bortone%2C+A">A. Bortone</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Boyko%2C+I">I. Boyko</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Briere%2C+R+A">R. A. Briere</a> , et al. (634 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2401.09012v2-abstract-short" style="display: inline;"> Using $(10.087\pm0.044)\times10^{9}$ $J/蠄$ events collected with the BESIII detector at the BEPCII storage ring, the processes $螞p\rightarrow螞p$ and $\bar螞p\rightarrow\bar螞p$ are studied, where the $螞/\bar螞$ baryons are produced in the process $J/蠄\rightarrow螞\bar螞$ and the protons are the hydrogen nuclei in the cooling oil of the beam pipe. Clear signals are observed for the two reactions. The cr&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.09012v2-abstract-full').style.display = 'inline'; document.getElementById('2401.09012v2-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2401.09012v2-abstract-full" style="display: none;"> Using $(10.087\pm0.044)\times10^{9}$ $J/蠄$ events collected with the BESIII detector at the BEPCII storage ring, the processes $螞p\rightarrow螞p$ and $\bar螞p\rightarrow\bar螞p$ are studied, where the $螞/\bar螞$ baryons are produced in the process $J/蠄\rightarrow螞\bar螞$ and the protons are the hydrogen nuclei in the cooling oil of the beam pipe. Clear signals are observed for the two reactions. The cross sections in $-0.9\leq\rm{cos}胃_{螞/\bar螞}\leq0.9$ are measured to be $蟽(螞p\rightarrow螞p)=(12.2\pm1.6_{\rm{stat}}\pm1.1_{\rm{sys}})$ mb and $蟽(\bar螞 p\rightarrow\bar螞 p)=(17.5\pm2.1_{\rm{stat}}\pm1.6_{\rm{sys}})$ mb at the $螞/\bar螞$ momentum of $1.074$ GeV/$c$ within a range of $\pm0.017$ GeV/$c$, where the $胃_{螞/\bar螞}$ are the scattering angles of the $螞/\bar螞$ in the $螞p/\bar螞p$ rest frames. Furthermore, the differential cross sections of the two reactions are also measured, where there is a slight tendency of forward scattering for $螞p\rightarrow螞p$, and a strong forward peak for $\bar螞p\rightarrow\bar螞p$. We present an approach to extract the total elastic cross sections by extrapolation. The study of $\bar螞p\rightarrow\bar螞p$ represents the first study of antihyperon-nucleon scattering, and these new measurements will serve as important inputs for the theoretical understanding of the (anti)hyperon-nucleon interaction. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.09012v2-abstract-full').style.display = 'none'; document.getElementById('2401.09012v2-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 18 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 January, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">9 pages, 5 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2312.07464">arXiv:2312.07464</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2312.07464">pdf</a>, <a href="https://arxiv.org/format/2312.07464">other</a>]&nbsp;</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"> Measurement of flow coefficients in high-multiplicity $p$+Au, $d$+Au and $^{3}$He$+$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&amp;query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhosale%2C+S+R">S. R. Bhosale</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Brandenburg%2C+J+D">J. D. Brandenburg</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Broodo%2C+C">C. Broodo</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cai%2C+X+Z">X. Z. Cai</a> , et al. (343 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="2312.07464v4-abstract-short" style="display: inline;"> Flow coefficients ($v_2$ and $v_3$) are measured in high-multiplicity $p$+Au, $d$+Au, and $^{3}$He$+$Au collisions at a center-of-mass energy of $\sqrt{s_{_{\mathrm{NN}}}}$ = 200 GeV using the STAR detector. The measurements utilize two-particle correlations with a pseudorapidity requirement of $|畏| &lt;$ 0.9 and a pair gap of $|螖畏|&gt;1.0$. The primary focus is on analysis methods, particularly the sub&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2312.07464v4-abstract-full').style.display = 'inline'; document.getElementById('2312.07464v4-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2312.07464v4-abstract-full" style="display: none;"> Flow coefficients ($v_2$ and $v_3$) are measured in high-multiplicity $p$+Au, $d$+Au, and $^{3}$He$+$Au collisions at a center-of-mass energy of $\sqrt{s_{_{\mathrm{NN}}}}$ = 200 GeV using the STAR detector. The measurements utilize two-particle correlations with a pseudorapidity requirement of $|畏| &lt;$ 0.9 and a pair gap of $|螖畏|&gt;1.0$. The primary focus is on analysis methods, particularly the subtraction of non-flow contributions. Four established non-flow subtraction methods are applied to determine $v_n$, validated using the HIJING event generator. $v_n$ values are compared across the three collision systems at similar multiplicities; this comparison cancels the final state effects and isolates the impact of initial geometry. While $v_2$ values show differences among these collision systems, $v_3$ values are largely similar, consistent with expectations of subnucleon fluctuations in the initial geometry. The ordering of $v_n$ differs quantitatively from previous measurements using two-particle correlations with a larger rapidity gap, which, according to model calculations, can be partially attributed to the effects of longitudinal flow decorrelations. The prospects for future measurements to improve our understanding of flow decorrelation and subnucleonic fluctuations are also discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2312.07464v4-abstract-full').style.display = 'none'; document.getElementById('2312.07464v4-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 November, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 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">29 pages, 25 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/2311.13129">arXiv:2311.13129</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2311.13129">pdf</a>, <a href="https://arxiv.org/format/2311.13129">other</a>]&nbsp;</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.131.212501">10.1103/PhysRevLett.131.212501 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Validation of the $^{10}\mathrm{Be}$ Ground-State Molecular Structure Using $^{10}\mathrm{Be}(p,p伪)^{6}\mathrm{He}$ Triple Differential Reaction Cross-Section Measurements </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=Li%2C+P+J">P. J. Li</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Beaumel%2C+D">D. Beaumel</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Lee%2C+J">J. Lee</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Assi%C3%A9%2C+M">M. Assi茅</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Chen%2C+S">S. Chen</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Franchoo%2C+S">S. Franchoo</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Gibelin%2C+J">J. Gibelin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Hammache%2C+F">F. Hammache</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Harada%2C+T">T. Harada</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Kanada-En%27yo%2C+Y">Y. Kanada-En&#39;yo</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Kubota%2C+Y">Y. Kubota</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Leblond%2C+S">S. Leblond</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Liang%2C+P+F">P. F. Liang</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Lokotko%2C+T">T. Lokotko</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Lyu%2C+M">M. Lyu</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Marqu%C3%A9s%2C+F+M">F. M. Marqu茅s</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Matsuda%2C+Y">Y. Matsuda</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ogata%2C+K">K. Ogata</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Otsu%2C+H">H. Otsu</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Rindel%2C+E">E. Rindel</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Stuhl%2C+L">L. Stuhl</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Suzuki%2C+D">D. Suzuki</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Togano%2C+Y">Y. Togano</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Tomai%2C+T">T. Tomai</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Xu%2C+X+X">X. X. Xu</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="2311.13129v1-abstract-short" style="display: inline;"> The cluster structure of the neutron-rich isotope $^{10}$Be has been probed via the $(p,p伪)$ reaction at 150 MeV/nucleon in inverse kinematics and in quasifree conditions. The populated states of $^{6}$He residues were investigated through missing mass spectroscopy. The triple differential cross-section for the ground-state transition was extracted for quasifree angle pairs ($胃_{p}$, $胃_伪$) and co&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.13129v1-abstract-full').style.display = 'inline'; document.getElementById('2311.13129v1-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.13129v1-abstract-full" style="display: none;"> The cluster structure of the neutron-rich isotope $^{10}$Be has been probed via the $(p,p伪)$ reaction at 150 MeV/nucleon in inverse kinematics and in quasifree conditions. The populated states of $^{6}$He residues were investigated through missing mass spectroscopy. The triple differential cross-section for the ground-state transition was extracted for quasifree angle pairs ($胃_{p}$, $胃_伪$) and compared to distorted-wave impulse approximation reaction calculations performed in a microscopic framework using successively the Tohsaki-Horiuchi-Schuck-R枚pke product wave-function and the wave-function deduced from Antisymmetrized Molecular Dynamics calculations. The remarkable agreement between calculated and measured cross-sections in both shape and magnitude validates the molecular structure description of the $^{10}$Be ground-state, configured as an $伪$-$伪$ core with two valence neutrons occupying $蟺$-type molecular orbitals. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.13129v1-abstract-full').style.display = 'none'; document.getElementById('2311.13129v1-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 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">7 pages, 3 figures, 1 tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 131 (2023) 212501 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.11020">arXiv:2311.11020</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2311.11020">pdf</a>, <a href="https://arxiv.org/format/2311.11020">other</a>]&nbsp;</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/PhysRevC.110.054911">10.1103/PhysRevC.110.054911 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Production of Protons and Light Nuclei in Au+Au Collisions at $\sqrt{s_{\mathrm{NN}}}$ = 3 GeV with the STAR Detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhosale%2C+S+R">S. R. Bhosale</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Brandenburg%2C+J+D">J. D. Brandenburg</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Broodo%2C+C">C. Broodo</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cai%2C+X+Z">X. Z. Cai</a> , et al. (342 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="2311.11020v2-abstract-short" style="display: inline;"> We report the systematic measurement of protons and light nuclei production in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 3 GeV by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The transverse momentum ($p_{T}$) spectra of protons ($p$), deuterons ($d$), tritons ($t$), $^{3}\mathrm{He}$, and $^{4}\mathrm{He}$ are measured from mid-rapidity to target rapidity for different c&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.11020v2-abstract-full').style.display = 'inline'; document.getElementById('2311.11020v2-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.11020v2-abstract-full" style="display: none;"> We report the systematic measurement of protons and light nuclei production in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 3 GeV by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The transverse momentum ($p_{T}$) spectra of protons ($p$), deuterons ($d$), tritons ($t$), $^{3}\mathrm{He}$, and $^{4}\mathrm{He}$ are measured from mid-rapidity to target rapidity for different collision centralities. We present the rapidity and centrality dependence of particle yields ($dN/dy$), average transverse momentum ($\langle p_{T}\rangle$), yield ratios ($d/p$, $t/p$,$^{3}\mathrm{He}/p$, $^{4}\mathrm{He}/p$), as well as the coalescence parameters ($B_2$, $B_3$). The 4$蟺$ yields for various particles are determined by utilizing the measured rapidity distributions, $dN/dy$. Furthermore, we present the energy, centrality, and rapidity dependence of the compound yield ratios ($N_{p} \times N_{t} / N_{d}^{2}$) and compare them with various model calculations. The physics implications of those results on the production mechanism of light nuclei and on QCD phase structure are discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.11020v2-abstract-full').style.display = 'none'; document.getElementById('2311.11020v2-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 October, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 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">17 pages, 17 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> PhysRevC.110.054911(2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.09985">arXiv:2311.09985</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2311.09985">pdf</a>, <a href="https://arxiv.org/format/2311.09985">other</a>]&nbsp;</span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.109.054908">10.1103/PhysRevC.109.054908 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of forward charged hadron flow harmonics in peripheral PbPb collisions at $\sqrt{s_{NN}}=5.02$ TeV with the LHCb detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aaij%2C+R">R. Aaij</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adeva%2C+B">B. Adeva</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Akar%2C+S">S. Akar</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Akiba%2C+K">K. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alessio%2C+F">F. Alessio</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alexander%2C+M">M. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amalric%2C+R">R. Amalric</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amato%2C+S">S. Amato</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amhis%2C+Y">Y. Amhis</a> , et al. (1079 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="2311.09985v2-abstract-short" style="display: inline;"> Flow harmonic coefficients, $v_n$, which are the key to studying the hydrodynamics of the quark-gluon plasma (QGP) created in heavy-ion collisions, have been measured in various collision systems and kinematic regions and using various particle species. The study of flow harmonics in a wide pseudorapidity range is particularly valuable to understand the temperature dependence of the shear viscosit&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.09985v2-abstract-full').style.display = 'inline'; document.getElementById('2311.09985v2-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.09985v2-abstract-full" style="display: none;"> Flow harmonic coefficients, $v_n$, which are the key to studying the hydrodynamics of the quark-gluon plasma (QGP) created in heavy-ion collisions, have been measured in various collision systems and kinematic regions and using various particle species. The study of flow harmonics in a wide pseudorapidity range is particularly valuable to understand the temperature dependence of the shear viscosity to entropy density ratio of the QGP. This paper presents the first LHCb results of the second- and the third-order flow harmonic coefficients of charged hadrons as a function of transverse momentum in the forward region, corresponding to pseudorapidities between 2.0 and 4.9, using the data collected from PbPb collisions in 2018 at a center-of-mass energy of $5.02$ TeV. The coefficients measured using the two-particle angular correlation analysis method are smaller than the central-pseudorapidity measurements at ALICE and ATLAS from the same collision system but share similar features. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.09985v2-abstract-full').style.display = 'none'; document.getElementById('2311.09985v2-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 16 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 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">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2023-031.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2023-031, CERN-EP-2023-240 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 109 (2024) 054908 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.08490">arXiv:2311.08490</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2311.08490">pdf</a>, <a href="https://arxiv.org/format/2311.08490">other</a>]&nbsp;</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.110.L031105">10.1103/PhysRevD.110.L031105 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of strangeness enhancement with charmed mesons in high-multiplicity $p\mathrm{Pb}$ collisions at $\sqrt {s_{\mathrm{NN}}}=8.16\,$TeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aaij%2C+R">R. Aaij</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adeva%2C+B">B. Adeva</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Akar%2C+S">S. Akar</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Akiba%2C+K">K. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alessio%2C+F">F. Alessio</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alexander%2C+M">M. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amalric%2C+R">R. Amalric</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amato%2C+S">S. Amato</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amey%2C+J+L">J. L. Amey</a> , et al. (1085 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="2311.08490v2-abstract-short" style="display: inline;"> The production of prompt $D^+_{s}$ and $D^+$ mesons is measured by the LHCb experiment in proton-lead ($p\mathrm{Pb}$) collisions in both the forward ($1.5&lt;y^*&lt;4.0$) and backward ($-5.0&lt;y^*&lt;-2.5$) rapidity regions at a nucleon-nucleon center-of-mass energy of $\sqrt {s_{\mathrm{NN}}}=8.16\,$TeV. The nuclear modification factors of both $D^+_{s}$ and $D^+$ mesons are determined as a function of tra&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.08490v2-abstract-full').style.display = 'inline'; document.getElementById('2311.08490v2-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.08490v2-abstract-full" style="display: none;"> The production of prompt $D^+_{s}$ and $D^+$ mesons is measured by the LHCb experiment in proton-lead ($p\mathrm{Pb}$) collisions in both the forward ($1.5&lt;y^*&lt;4.0$) and backward ($-5.0&lt;y^*&lt;-2.5$) rapidity regions at a nucleon-nucleon center-of-mass energy of $\sqrt {s_{\mathrm{NN}}}=8.16\,$TeV. The nuclear modification factors of both $D^+_{s}$ and $D^+$ mesons are determined as a function of transverse momentum, $p_{\mathrm{T}}$, and rapidity. In addition, the $D^+_{s}$ to $D^+$ cross-section ratio is measured as a function of the charged particle multiplicity in the event. An enhanced $D^+_{s}$ to $D^+$ production in high-multiplicity events is observed for the whole measured $p_{\mathrm{T}}$ range, in particular at low $p_{\mathrm{T}}$ and backward rapidity, where the significance exceeds six standard deviations. This constitutes the first observation of strangeness enhancement in charm quark hadronization in high-multiplicity $p\mathrm{Pb}$ collisions. The results are also qualitatively consistent with the presence of quark coalescence as an additional charm quark hadronization mechanism in high-multiplicity proton-lead collisions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.08490v2-abstract-full').style.display = 'none'; document.getElementById('2311.08490v2-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 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">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2023-021.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2023-021, CERN-EP-2023-236 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 110, L031105 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.01562">arXiv:2311.01562</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2311.01562">pdf</a>, <a href="https://arxiv.org/format/2311.01562">other</a>]&nbsp;</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.132.102302">10.1103/PhysRevLett.132.102302 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Fraction of $蠂_c$ decays in prompt $J/蠄$ production measured in pPb collisions at $\sqrt{s_{NN}}=8.16$ TeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aaij%2C+R">R. Aaij</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adeva%2C+B">B. Adeva</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Akar%2C+S">S. Akar</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Akiba%2C+K">K. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alessio%2C+F">F. Alessio</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alexander%2C+M">M. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amalric%2C+R">R. Amalric</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amato%2C+S">S. Amato</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amhis%2C+Y">Y. Amhis</a> , et al. (1078 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="2311.01562v1-abstract-short" style="display: inline;"> The fraction of $蠂_{c1}$ and $蠂_{c2}$ decays in the prompt $J/蠄$ yield, $F_{蠂c}=蟽_{蠂_c \to J/蠄}/蟽_{J/蠄}$, is measured by the LHCb detector in pPb collisions at $\sqrt{s_{NN}}=8.16$ TeV. The study covers the forward ($1.5&lt;y^*&lt;4.0$) and backward ($-5.0&lt;y^*&lt;-2.5$) rapidity regions, where $y^*$ is the $J/蠄$ rapidity in the nucleon-nucleon center-of-mass system. Forward and backward rapidity samples co&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.01562v1-abstract-full').style.display = 'inline'; document.getElementById('2311.01562v1-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.01562v1-abstract-full" style="display: none;"> The fraction of $蠂_{c1}$ and $蠂_{c2}$ decays in the prompt $J/蠄$ yield, $F_{蠂c}=蟽_{蠂_c \to J/蠄}/蟽_{J/蠄}$, is measured by the LHCb detector in pPb collisions at $\sqrt{s_{NN}}=8.16$ TeV. The study covers the forward ($1.5&lt;y^*&lt;4.0$) and backward ($-5.0&lt;y^*&lt;-2.5$) rapidity regions, where $y^*$ is the $J/蠄$ rapidity in the nucleon-nucleon center-of-mass system. Forward and backward rapidity samples correspond to integrated luminosities of 13.6 $\pm$ 0.3 nb$^{-1}$ and 20.8 $\pm$ 0.5 nb$^{-1}$, respectively. The result is presented as a function of the $J/蠄$ transverse momentum $p_{T,J/蠄}$ in the range 1$&lt;p_{T, J/蠄}&lt;20$ GeV/$c$. The $F_{蠂c}$ fraction at forward rapidity is compatible with the LHCb measurement performed in $pp$ collisions at $\sqrt{s}=7$ TeV, whereas the result at backward rapidity is 2.4 $蟽$ larger than in the forward region for $1&lt;p_{T, J/蠄}&lt;3$ GeV/$c$. The increase of $F_{蠂c}$ at low $p_{T, J/蠄}$ at backward rapidity is compatible with the suppression of the $蠄$(2S) contribution to the prompt $J/蠄$ yield. The lack of in-medium dissociation of $蠂_c$ states observed in this study sets an upper limit of 180 MeV on the free energy available in these pPb collisions to dissociate or inhibit charmonium state formation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.01562v1-abstract-full').style.display = 'none'; document.getElementById('2311.01562v1-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 2 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 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">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2023-028.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2023-028, CERN-EP-2023-224 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 132 (2024) 102302 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.00934">arXiv:2311.00934</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2311.00934">pdf</a>, <a href="https://arxiv.org/format/2311.00934">other</a>]&nbsp;</span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2024.138966">10.1016/j.physletb.2024.138966 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurements of charged-particle multiplicity dependence of higher-order net-proton cumulants in $p$+$p$ collisions at $\sqrt{s} =$ 200 GeV from STAR at RHIC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhosale%2C+S+R">S. R. Bhosale</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Brandenburg%2C+J+D">J. D. Brandenburg</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Broodo%2C+C">C. Broodo</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cai%2C+X+Z">X. Z. Cai</a> , et al. (338 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="2311.00934v2-abstract-short" style="display: inline;"> We report on the charged-particle multiplicity dependence of net-proton cumulant ratios up to sixth order from $\sqrt{s}=200$ GeV $p$+$p$ collisions at the Relativistic Heavy Ion Collider (RHIC). The measured ratios $C_{4}/C_{2}$, $C_{5}/C_{1}$, and $C_{6}/C_{2}$ decrease with increased charged-particle multiplicity and rapidity acceptance. Neither the Skellam baselines nor PYTHIA8 calculations ac&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.00934v2-abstract-full').style.display = 'inline'; document.getElementById('2311.00934v2-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.00934v2-abstract-full" style="display: none;"> We report on the charged-particle multiplicity dependence of net-proton cumulant ratios up to sixth order from $\sqrt{s}=200$ GeV $p$+$p$ collisions at the Relativistic Heavy Ion Collider (RHIC). The measured ratios $C_{4}/C_{2}$, $C_{5}/C_{1}$, and $C_{6}/C_{2}$ decrease with increased charged-particle multiplicity and rapidity acceptance. Neither the Skellam baselines nor PYTHIA8 calculations account for the observed multiplicity dependence. In addition, the ratios $C_{5}/C_{1}$ and $C_{6}/C_{2}$ approach negative values in the highest-multiplicity events, which implies that thermalized QCD matter may be formed in $p$+$p$ collisions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.00934v2-abstract-full').style.display = 'none'; document.getElementById('2311.00934v2-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 1 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 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">12 pages, 6 figures, accepted version by PLB</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2310.17326">arXiv:2310.17326</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2310.17326">pdf</a>, <a href="https://arxiv.org/format/2310.17326">other</a>]&nbsp;</span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.109.024907">10.1103/PhysRevC.109.024907 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Production of $畏$ and $畏&#39;$ mesons in $pp$ and $p$Pb collisions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aaij%2C+R">R. Aaij</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adeva%2C+B">B. Adeva</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Akar%2C+S">S. Akar</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Akiba%2C+K">K. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alessio%2C+F">F. Alessio</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alexander%2C+M">M. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amalric%2C+R">R. Amalric</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amato%2C+S">S. Amato</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amhis%2C+Y">Y. Amhis</a> , et al. (1080 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="2310.17326v2-abstract-short" style="display: inline;"> The production of $畏$ and $畏&#39;$ mesons is studied in proton-proton and proton-lead collisions collected with the LHCb detector. Proton-proton collisions are studied at center-of-mass energies of $5.02$ and $13~{\rm TeV}$, and proton-lead collisions are studied at a center-of-mass energy per nucleon of $8.16~{\rm TeV}$. The studies are performed in center-of-mass rapidity regions&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.17326v2-abstract-full').style.display = 'inline'; document.getElementById('2310.17326v2-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2310.17326v2-abstract-full" style="display: none;"> The production of $畏$ and $畏&#39;$ mesons is studied in proton-proton and proton-lead collisions collected with the LHCb detector. Proton-proton collisions are studied at center-of-mass energies of $5.02$ and $13~{\rm TeV}$, and proton-lead collisions are studied at a center-of-mass energy per nucleon of $8.16~{\rm TeV}$. The studies are performed in center-of-mass rapidity regions $2.5&lt;y_{\rm c.m.}&lt;3.5$ (forward rapidity) and $-4.0&lt;y_{\rm c.m.}&lt;-3.0$ (backward rapidity) defined relative to the proton beam direction. The $畏$ and $畏&#39;$ production cross sections are measured differentially as a function of transverse momentum for $1.5&lt;p_{\rm T}&lt;10~{\rm GeV}$ and $3&lt;p_{\rm T}&lt;10~{\rm GeV}$, respectively. The differential cross sections are used to calculate nuclear modification factors. The nuclear modification factors for $畏$ and $畏&#39;$ mesons agree at both forward and backward rapidity, showing no significant evidence of mass dependence. The differential cross sections of $畏$ mesons are also used to calculate $畏/蟺^0$ cross section ratios, which show evidence of a deviation from the world average. These studies offer new constraints on mass-dependent nuclear effects in heavy-ion collisions, as well as $畏$ and $畏&#39;$ meson fragmentation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.17326v2-abstract-full').style.display = 'none'; document.getElementById('2310.17326v2-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 13 February, 2025; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 October, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 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">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/Publications/p/LHCb-PAPER-2023-030.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2023-030, CERN-EP-2023-228 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C109 (2024), 024907 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2310.13096">arXiv:2310.13096</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2310.13096">pdf</a>, <a href="https://arxiv.org/format/2310.13096">other</a>]&nbsp;</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/PhysRevC.110.014905">10.1103/PhysRevC.110.014905 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Estimate of Background Baseline and Upper Limit on the Chiral Magnetic Effect in Isobar Collisions at $\sqrt{s_{\text{NN}}}=200$ GeV at the Relativistic Heavy-Ion Collider </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aitbaev%2C+A">A. Aitbaev</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alpatov%2C+E">E. Alpatov</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aparin%2C+A">A. Aparin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhosale%2C+S+R">S. R. Bhosale</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Brandenburg%2C+J+D">J. D. Brandenburg</a> , et al. (333 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2310.13096v2-abstract-short" style="display: inline;"> For the search of the chiral magnetic effect (CME), STAR previously presented the results from isobar collisions (${^{96}_{44}\text{Ru}}+{^{96}_{44}\text{Ru}}$, ${^{96}_{40}\text{Zr}}+{^{96}_{40}\text{Zr}}$) obtained through a blind analysis. The ratio of results in Ru+Ru to Zr+Zr collisions for the CME-sensitive charge-dependent azimuthal correlator ($螖纬$), normalized by elliptic anisotropy (&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.13096v2-abstract-full').style.display = 'inline'; document.getElementById('2310.13096v2-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2310.13096v2-abstract-full" style="display: none;"> For the search of the chiral magnetic effect (CME), STAR previously presented the results from isobar collisions (${^{96}_{44}\text{Ru}}+{^{96}_{44}\text{Ru}}$, ${^{96}_{40}\text{Zr}}+{^{96}_{40}\text{Zr}}$) obtained through a blind analysis. The ratio of results in Ru+Ru to Zr+Zr collisions for the CME-sensitive charge-dependent azimuthal correlator ($螖纬$), normalized by elliptic anisotropy ($v_{2}$), was observed to be close to but systematically larger than the inverse multiplicity ratio. The background baseline for the isobar ratio, $Y = \frac{(螖纬/v_{2})^{\text{Ru}}}{(螖纬/v_{2})^{\text{Zr}}}$, is naively expected to be $\frac{(1/N)^{\text{Ru}}}{(1/N)^{\text{Zr}}}$; however, genuine two- and three-particle correlations are expected to alter it. We estimate the contributions to $Y$ from those correlations, utilizing both the isobar data and HIJING simulations. After including those contributions, we arrive at a final background baseline for $Y$, which is consistent with the isobar data. We extract an upper limit for the CME fraction in the $螖纬$ measurement of approximately $10\%$ at a $95\%$ confidence level on in isobar collisions at $\sqrt{s_{\text{NN}}} = 200$ GeV, with an expected $15\%$ difference in their squared magnetic fields. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.13096v2-abstract-full').style.display = 'none'; document.getElementById('2310.13096v2-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 19 October, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 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">19 pages, 14 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 110, 014905 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2310.12674">arXiv:2310.12674</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2310.12674">pdf</a>, <a href="https://arxiv.org/format/2310.12674">other</a>]&nbsp;</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/10.1038/s41586-024-07823-0">10.1038/s41586-024-07823-0 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of the Antimatter Hypernucleus $^4_{\bar螞}\overline{\hbox{H}}$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhosale%2C+S+R">S. R. Bhosale</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Brandenburg%2C+J+D">J. D. Brandenburg</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Broodo%2C+C">C. Broodo</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cai%2C+X+Z">X. Z. Cai</a> , et al. (342 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="2310.12674v3-abstract-short" style="display: inline;"> At the origin of the Universe, asymmetry between the amount of created matter and antimatter led to the matter-dominated Universe as we know today. The origins of this asymmetry remain not completely understood yet. High-energy nuclear collisions create conditions similar to the Universe microseconds after the Big Bang, with comparable amounts of matter and antimatter. Much of the created antimatt&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.12674v3-abstract-full').style.display = 'inline'; document.getElementById('2310.12674v3-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2310.12674v3-abstract-full" style="display: none;"> At the origin of the Universe, asymmetry between the amount of created matter and antimatter led to the matter-dominated Universe as we know today. The origins of this asymmetry remain not completely understood yet. High-energy nuclear collisions create conditions similar to the Universe microseconds after the Big Bang, with comparable amounts of matter and antimatter. Much of the created antimatter escapes the rapidly expanding fireball without annihilating, making such collisions an effective experimental tool to create heavy antimatter nuclear objects and study their properties, hoping to shed some light on existing questions on the asymmetry between matter and antimatter. Here we report the first observation of the antimatter hypernucleus \hbox{$^4_{\bar螞}\overline{\hbox{H}}$}, composed of a $\bar螞$ , an antiproton and two antineutrons. The discovery was made through its two-body decay after production in ultrarelativistic heavy-ion collisions by the STAR experiment at the Relativistic Heavy Ion Collider. In total, 15.6 candidate \hbox{$^4_{\bar螞}\overline{\hbox{H}}$} antimatter hypernuclei are obtained with an estimated background count of 6.4. The lifetimes of the antihypernuclei \hbox{$^3_{\bar螞}\overline{\hbox{H}}$} and \hbox{$^4_{\bar螞}\overline{\hbox{H}}$} are measured and compared with the lifetimes of their corresponding hypernuclei, testing the symmetry between matter and antimatter. Various production yield ratios among (anti)hypernuclei and (anti)nuclei are also measured and compared with theoretical model predictions, shedding light on their production mechanisms. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.12674v3-abstract-full').style.display = 'none'; document.getElementById('2310.12674v3-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 19 October, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">28 pages, 5 figures in the main paper; 16 pages, 5 figures in the methods part</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2310.06082">arXiv:2310.06082</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2310.06082">pdf</a>, <a href="https://arxiv.org/format/2310.06082">other</a>]&nbsp;</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"> Measurement of nuclear effects in neutrino-argon interactions using generalized kinematic imbalance variables with the MicroBooNE detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=MicroBooNE+collaboration"> MicroBooNE collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abratenko%2C+P">P. Abratenko</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alterkait%2C+O">O. Alterkait</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aldana%2C+D+A">D. Andrade Aldana</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Arellano%2C+L">L. Arellano</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Asaadi%2C+J">J. Asaadi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ashkenazi%2C+A">A. Ashkenazi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Balasubramanian%2C+S">S. Balasubramanian</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Baller%2C+B">B. Baller</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Barr%2C+G">G. Barr</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Barrow%2C+D">D. Barrow</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Barrow%2C+J">J. Barrow</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Basque%2C+V">V. Basque</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Rodrigues%2C+O+B">O. Benevides Rodrigues</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Berkman%2C+S">S. Berkman</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhanderi%2C+A">A. Bhanderi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhat%2C+A">A. Bhat</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhattacharya%2C+M">M. Bhattacharya</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bishai%2C+M">M. Bishai</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Blake%2C+A">A. Blake</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bogart%2C+B">B. Bogart</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bolton%2C+T">T. Bolton</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Book%2C+J+Y">J. Y. Book</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Brunetti%2C+M+B">M. B. Brunetti</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Camilleri%2C+L">L. Camilleri</a> , et al. (163 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="2310.06082v4-abstract-short" style="display: inline;"> We present a set of new generalized kinematic imbalance variables that can be measured in neutrino scattering. These variables extend previous measurements of kinematic imbalance on the transverse plane, and are more sensitive to modeling of nuclear effects. We demonstrate the enhanced power of these variables using simulation, and then use the MicroBooNE detector to measure them for the first tim&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.06082v4-abstract-full').style.display = 'inline'; document.getElementById('2310.06082v4-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2310.06082v4-abstract-full" style="display: none;"> We present a set of new generalized kinematic imbalance variables that can be measured in neutrino scattering. These variables extend previous measurements of kinematic imbalance on the transverse plane, and are more sensitive to modeling of nuclear effects. We demonstrate the enhanced power of these variables using simulation, and then use the MicroBooNE detector to measure them for the first time. We report flux-integrated single- and double-differential measurements of charged-current muon neutrino scattering on argon using a topolgy with one muon and one proton in the final state as a function of these novel kinematic imbalance variables. These measurements allow us to demonstrate that the treatment of charged current quasielastic interactions in GENIE version 2 is inadequate to describe data. Further, they reveal tensions with more modern generator predictions particularly in regions of phase space where final state interactions are important. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.06082v4-abstract-full').style.display = 'none'; document.getElementById('2310.06082v4-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 October, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 109, 092007 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2310.00720">arXiv:2310.00720</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2310.00720">pdf</a>, <a href="https://arxiv.org/format/2310.00720">other</a>]&nbsp;</span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.109.L052201">10.1103/PhysRevC.109.L052201 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First measurement of $螞N$ inelastic scattering with $螞$ from $e^{+} e^{-} \rightarrow J/蠄\to 螞\bar螞$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Afedulidis%2C+O">O. Afedulidis</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=An%2C+Q">Q. An</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bai%2C+Y">Y. Bai</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bakina%2C+O">O. Bakina</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Balossino%2C+I">I. Balossino</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ban%2C+Y">Y. Ban</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bao%2C+H+-">H. -R. Bao</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Batozskaya%2C+V">V. Batozskaya</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Berger%2C+N">N. Berger</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bianco%2C+E">E. Bianco</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bortone%2C+A">A. Bortone</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Boyko%2C+I">I. Boyko</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Briere%2C+R+A">R. A. Briere</a> , et al. (626 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="2310.00720v1-abstract-short" style="display: inline;"> Using an $e^+ e^-$ collision data sample of $(10087 \pm 44)\times10^6 ~J/蠄$ events taken at the center-of-mass energy of $3.097~\rm{GeV}$ by the BESIII detector at the BEPCII collider, the process $螞+N \rightarrow 危^+ + X$ is studied for the first time employing a novel method. The $危^{+}$ hyperons are produced by the collisions of $螞$ hyperons from $J/蠄$ decays with nuclei in the material of the&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.00720v1-abstract-full').style.display = 'inline'; document.getElementById('2310.00720v1-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2310.00720v1-abstract-full" style="display: none;"> Using an $e^+ e^-$ collision data sample of $(10087 \pm 44)\times10^6 ~J/蠄$ events taken at the center-of-mass energy of $3.097~\rm{GeV}$ by the BESIII detector at the BEPCII collider, the process $螞+N \rightarrow 危^+ + X$ is studied for the first time employing a novel method. The $危^{+}$ hyperons are produced by the collisions of $螞$ hyperons from $J/蠄$ decays with nuclei in the material of the BESIII detector. The total cross section of $螞+ ^{9}{\rm Be} \rightarrow 危^+ + X$ is measured to be $蟽= (37.3 \pm 4.7 \pm 3.5)~{\rm mb}$ at $螞$ beam momenta within $[1.057, 1.091]~{\rm GeV}/c$, where the uncertainties are statistical and systematic, respectively. This analysis is the first study of $螞$-nucleon interactions at an $e^+ e^-$ collider, providing information and constraints relevant for the strong-interaction potential, the origin of color confinement, the unified model for baryon-baryon interactions, and the internal structure of neutron stars. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.00720v1-abstract-full').style.display = 'none'; document.getElementById('2310.00720v1-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 October, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2309.16622">arXiv:2309.16622</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2309.16622">pdf</a>, <a href="https://arxiv.org/format/2309.16622">other</a>]&nbsp;</span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2024.138601">10.1016/j.physletb.2024.138601 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Results on Elastic Cross Sections in Proton-Proton Collisions at $\sqrt{s} = 510$ GeV with the STAR Detector at RHIC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhosale%2C+S+R">S. R. Bhosale</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Brandenburg%2C+J+D">J. D. Brandenburg</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Broodo%2C+C">C. Broodo</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cai%2C+X+Z">X. Z. Cai</a> , et al. (343 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="2309.16622v4-abstract-short" style="display: inline;"> We report results on an elastic cross section measurement in proton-proton collisions at a center-of-mass energy $\sqrt{s}=510$ GeV, obtained with the Roman Pot setup of the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The elastic differential cross section is measured in the four-momentum transfer squared range $0.23 \leq -t \leq 0.67$ GeV$^2$. We find that a constant slope $B$&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2309.16622v4-abstract-full').style.display = 'inline'; document.getElementById('2309.16622v4-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2309.16622v4-abstract-full" style="display: none;"> We report results on an elastic cross section measurement in proton-proton collisions at a center-of-mass energy $\sqrt{s}=510$ GeV, obtained with the Roman Pot setup of the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The elastic differential cross section is measured in the four-momentum transfer squared range $0.23 \leq -t \leq 0.67$ GeV$^2$. We find that a constant slope $B$ does not fit the data in the aforementioned $t$ range, and we obtain a much better fit using a second-order polynomial for $B(t)$. The $t$ dependence of $B$ is determined using six subintervals of $t$ in the STAR measured $t$ range, and is in good agreement with the phenomenological models. The measured elastic differential cross section $\mathrm{d}蟽/\mathrm{dt}$ agrees well with the results obtained at $\sqrt{s} = 546$ GeV for proton--antiproton collisions by the UA4 experiment. We also determine that the integrated elastic cross section within the STAR $t$-range is $蟽^\mathrm{fid}_\mathrm{el} = 462.1 \pm 0.9 (\mathrm{stat.}) \pm 1.1 (\mathrm {syst.}) \pm 11.6 (\mathrm {scale})$~$渭\mathrm{b}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2309.16622v4-abstract-full').style.display = 'none'; document.getElementById('2309.16622v4-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 September, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 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">9 pages, 9 figures Version as published in Physics Letters B. HEPDATA: https://www.hepdata.net/record/144920</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physics Letters B, Volume 852, May 2024, 138601 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2309.14206">arXiv:2309.14206</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2309.14206">pdf</a>, <a href="https://arxiv.org/format/2309.14206">other</a>]&nbsp;</span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP01(2024)070">10.1007/JHEP01(2024)070 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of prompt $D^+$ and $D^+_{s}$ production in $p\mathrm{Pb}$ collisions at $\sqrt {s_{\mathrm{NN}}}=5.02\,$TeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aaij%2C+R">R. Aaij</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adeva%2C+B">B. Adeva</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Akar%2C+S">S. Akar</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Akiba%2C+K">K. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alessio%2C+F">F. Alessio</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alexander%2C+M">M. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amalric%2C+R">R. Amalric</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amato%2C+S">S. Amato</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amey%2C+J+L">J. L. Amey</a> , et al. (1039 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="2309.14206v4-abstract-short" style="display: inline;"> The production of prompt $D^+$ and $D^+_{s}$ mesons is studied in proton-lead collisions at a centre-of-mass energy of $\sqrt {s_{\mathrm{NN}}}=5.02\,$TeV. The data sample corresponding to an integrated luminosity of $(1.58\pm0.02)\mathrm{nb}^{-1}$ is collected by the LHCb experiment at the LHC. The differential production cross-sections are measured using $D^+$ and $D^+_{s}$ candidates with trans&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2309.14206v4-abstract-full').style.display = 'inline'; document.getElementById('2309.14206v4-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2309.14206v4-abstract-full" style="display: none;"> The production of prompt $D^+$ and $D^+_{s}$ mesons is studied in proton-lead collisions at a centre-of-mass energy of $\sqrt {s_{\mathrm{NN}}}=5.02\,$TeV. The data sample corresponding to an integrated luminosity of $(1.58\pm0.02)\mathrm{nb}^{-1}$ is collected by the LHCb experiment at the LHC. The differential production cross-sections are measured using $D^+$ and $D^+_{s}$ candidates with transverse momentum in the range of $0&lt;p_{\mathrm{T}} &lt;14\,\mathrm{GeV}/c$ and rapidities in the ranges of $1.5&lt;y^*&lt;4.0$ and $-5.0&lt;y^*&lt;-2.5$ in the nucleon-nucleon centre-of-mass system. For both particles, the nuclear modification factor and the forward-backward production ratio are determined. These results are compared with theoretical models that include initial-state nuclear effects. In addition, measurements of the cross-section ratios between $D^+$, $D^+_{s}$ and $D^0$ mesons are presented, providing a baseline for studying the charm hadronization in lead-lead collisions at LHC energies. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2309.14206v4-abstract-full').style.display = 'none'; document.getElementById('2309.14206v4-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 25 January, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 25 September, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 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">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2023-006.html (LHCb public pages). arXiv admin note: text overlap with arXiv:1707.02750</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2023-142, LHCb-PAPER-2023-006 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 01 (2024) 070 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2309.12610">arXiv:2309.12610</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2309.12610">pdf</a>, <a href="https://arxiv.org/format/2309.12610">other</a>]&nbsp;</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.109.044914">10.1103/PhysRevC.109.044914 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Reaction plane correlated triangular flow in Au+Au collisions at $\sqrt{s_{NN}}=3$ GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhosale%2C+S+R">S. R. Bhosale</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Brandenburg%2C+J+D">J. D. Brandenburg</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Broodo%2C+C">C. Broodo</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cai%2C+X+Z">X. Z. Cai</a> , et al. (341 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="2309.12610v2-abstract-short" style="display: inline;"> We measure triangular flow relative to the reaction plane at 3 GeV center-of-mass energy in Au+Au collisions at the BNL Relativistic Heavy Ion Collider. A significant $v_3$ signal for protons is observed, which increases for higher rapidity, higher transverse momentum, and more peripheral collisions. The triangular flow is essentially rapidity-odd with a slope at mid-rapidity, $dv_3/dy|_{(y=0)}$,&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2309.12610v2-abstract-full').style.display = 'inline'; document.getElementById('2309.12610v2-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2309.12610v2-abstract-full" style="display: none;"> We measure triangular flow relative to the reaction plane at 3 GeV center-of-mass energy in Au+Au collisions at the BNL Relativistic Heavy Ion Collider. A significant $v_3$ signal for protons is observed, which increases for higher rapidity, higher transverse momentum, and more peripheral collisions. The triangular flow is essentially rapidity-odd with a slope at mid-rapidity, $dv_3/dy|_{(y=0)}$, opposite in sign compared to the slope for directed flow. No significant $v_3$ signal is observed for charged pions and kaons. Comparisons with models suggest that a mean field potential is required to describe these results, and that the triangular shape of the participant nucleons is the result of stopping and nuclear geometry. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2309.12610v2-abstract-full').style.display = 'none'; document.getElementById('2309.12610v2-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 April, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 September, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 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">12 pages, 14 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 109, 044914 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2308.16846">arXiv:2308.16846</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2308.16846">pdf</a>, <a href="https://arxiv.org/format/2308.16846">other</a>]&nbsp;</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/PhysRevResearch.6.L032005">10.1103/PhysRevResearch.6.L032005 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Upper Limit on the Chiral Magnetic Effect in Isobar Collisions at the Relativistic Heavy-Ion Collider </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aitbaev%2C+A">A. Aitbaev</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alpatov%2C+E">E. Alpatov</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aparin%2C+A">A. Aparin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhosale%2C+S+R">S. R. Bhosale</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Brandenburg%2C+J+D">J. D. Brandenburg</a> , et al. (333 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2308.16846v2-abstract-short" style="display: inline;"> The chiral magnetic effect (CME) is a phenomenon that arises from the QCD anomaly in the presence of an external magnetic field. The experimental search for its evidence has been one of the key goals of the physics program of the Relativistic Heavy-Ion Collider. The STAR collaboration has previously presented the results of a blind analysis of isobar collisions (&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2308.16846v2-abstract-full').style.display = 'inline'; document.getElementById('2308.16846v2-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2308.16846v2-abstract-full" style="display: none;"> The chiral magnetic effect (CME) is a phenomenon that arises from the QCD anomaly in the presence of an external magnetic field. The experimental search for its evidence has been one of the key goals of the physics program of the Relativistic Heavy-Ion Collider. The STAR collaboration has previously presented the results of a blind analysis of isobar collisions (${^{96}_{44}\text{Ru}}+{^{96}_{44}\text{Ru}}$, ${^{96}_{40}\text{Zr}}+{^{96}_{40}\text{Zr}}$) in the search for the CME. The isobar ratio ($Y$) of CME-sensitive observable, charge separation scaled by elliptic anisotropy, is close to but systematically larger than the inverse multiplicity ratio, the naive background baseline. This indicates the potential existence of a CME signal and the presence of remaining nonflow background due to two- and three-particle correlations, which are different between the isobars. In this post-blind analysis, we estimate the contributions from those nonflow correlations as a background baseline to $Y$, utilizing the isobar data as well as Heavy Ion Jet Interaction Generator simulations. This baseline is found consistent with the isobar ratio measurement, and an upper limit of 10% at 95% confidence level is extracted for the CME fraction in the charge separation measurement in isobar collisions at $\sqrt{s_{\rm NN}}=200$ GeV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2308.16846v2-abstract-full').style.display = 'none'; document.getElementById('2308.16846v2-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 31 August, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">8 pages, 4 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Research 6, L032005 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2307.16276">arXiv:2307.16276</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2307.16276">pdf</a>, <a href="https://arxiv.org/format/2307.16276">other</a>]&nbsp;</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> <p class="title is-5 mathjax"> Precise determination of $^{210}$Pb $尾$ Decay Spectrum at 0 keV and its Implication to Theoretical Calculations </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=Zhang%2C+S">Shuo Zhang</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Mougeot%2C+X">Xavier Mougeot</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Liu%2C+H">Hao-Ran Liu</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Han%2C+K">Ke Han</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Sun%2C+T">Tao Sun</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Wu%2C+W">Wen-Tao Wu</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cantor%2C+R">Robin Cantor</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Xia%2C+J">Jing-Kai Xia</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Liang%2C+J">Jun-Cheng Liang</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Fan%2C+F">Fu-You Fan</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Wu%2C+B">Bing-Jun Wu</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Zhang%2C+L">Le Zhang</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ge%2C+M">Ming-Yu Ge</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Zhou%2C+X">XiaoPeng Zhou</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Liu%2C+Z">Zhi Liu</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="2307.16276v1-abstract-short" style="display: inline;"> The atomic exchange effect will lead to a significant increase in the probability density of $尾$ decays below a few keV. This effect is very important for scientific experiments that performed by low-energy electron spectroscopy measurements. However, the atomic exchange effect involves multi-electron interactions, especially for a system with 82 electrons such as lead. Different parameters will l&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.16276v1-abstract-full').style.display = 'inline'; document.getElementById('2307.16276v1-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2307.16276v1-abstract-full" style="display: none;"> The atomic exchange effect will lead to a significant increase in the probability density of $尾$ decays below a few keV. This effect is very important for scientific experiments that performed by low-energy electron spectroscopy measurements. However, the atomic exchange effect involves multi-electron interactions, especially for a system with 82 electrons such as lead. Different parameters will lead to different trends in the energy spectrum predicted by the theory, so it is urgent to carry out experimental measurements to provide parameter limits for the theory. The probability increase brought about by the atomic exchange effect is most obvious near 0keV, and the $尾$ energy spectrum is accurately measured near this energy point, so as to provide constraints for the physical model of atomic exchange. However, it is extremely difficult to measure the $尾$ energy spectrum at 0keV due to the limitations of electronic noise and internal conversion effects. The excited decay path of $^{210}$Pb was taken as the observation object,by measuring the total energy spectrum of $尾$ rays and cascaded gamma rays, the precise measurement of the $尾$ energy spectrum near 0keV has been completed. The analysis of the $尾$ energy spectrum of $^{210}$Pb gives the following conclusions. The experimental results first verified the theory that the exchange effect causes the probability increase at the low energy end near 0keV. At the same time, the experimental results are higher than the existing predictions of the atomic exchange effect. At least for Pb element, all the electron shells have played a role in improving the probability density of the low end of the $尾$ energy spectrum. This discovery will promote the theoretical calculation of the $尾$ energy spectrum of $^{214}$Pb, at the same time, it also indicates that the reactor neutrinos have a higher probability density at the omnipotent end. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.16276v1-abstract-full').style.display = 'none'; document.getElementById('2307.16276v1-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 30 July, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2307.13891">arXiv:2307.13891</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2307.13891">pdf</a>, <a href="https://arxiv.org/format/2307.13891">other</a>]&nbsp;</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"> Jet-hadron correlations with respect to the event plane in $\sqrt{s_{\mathrm{NN}}}$ = 200 GeV Au+Au collisions in STAR </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhosale%2C+S+R">S. R. Bhosale</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Brandenburg%2C+J+D">J. D. Brandenburg</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cai%2C+X+Z">X. Z. Cai</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Caines%2C+H">H. Caines</a> , et al. (340 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2307.13891v4-abstract-short" style="display: inline;"> Angular distributions of charged particles relative to jet axes are studied in $\sqrt{s_{\mathrm{NN}}}$ = 200 GeV Au+Au collisions as a function of the jet orientation with respect to the event plane. This differential study tests the expected path-length dependence of energy loss experienced by a hard-scattered parton as it traverses the hot and dense medium formed in heavy-ion collisions. A seco&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.13891v4-abstract-full').style.display = 'inline'; document.getElementById('2307.13891v4-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2307.13891v4-abstract-full" style="display: none;"> Angular distributions of charged particles relative to jet axes are studied in $\sqrt{s_{\mathrm{NN}}}$ = 200 GeV Au+Au collisions as a function of the jet orientation with respect to the event plane. This differential study tests the expected path-length dependence of energy loss experienced by a hard-scattered parton as it traverses the hot and dense medium formed in heavy-ion collisions. A second-order event plane is used in the analysis as an experimental estimate of the reaction plane formed by the collision impact parameter and the beam direction. Charged-particle jets with $15 &lt; p_{\rm T, jet} &lt;$ 20 and $20 &lt; p_{\rm T, jet} &lt;$ 40 GeV/$c$ were reconstructed with the anti-$k_{\rm T}$ algorithm with radius parameter setting of (R=0.4) in the 20-50\% centrality bin to maximize the initial-state eccentricity of the interaction region. The reaction plane fit method is implemented to remove the flow-modulated background with better precision than prior methods. Yields and widths of jet-associated charged-hadron distributions are extracted in three angular bins between the jet axis and the event plane. The event-plane (EP) dependence is further quantified by ratios of the associated yields in different EP bins. No dependence on orientation of the jet axis with respect to the event plane is seen within the uncertainties in the kinematic regime studied. This finding is consistent with a similar experimental observation by ALICE in $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV Pb+Pb collision data. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.13891v4-abstract-full').style.display = 'none'; document.getElementById('2307.13891v4-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 March, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 25 July, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2307.07077">arXiv:2307.07077</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2307.07077">pdf</a>, <a href="https://arxiv.org/format/2307.07077">other</a>]&nbsp;</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.2023.138025">10.1016/j.physletb.2023.138025 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Level Structures of $^{56,58}$Ca Cast Doubt on a doubly magic $^{60}$Ca </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=Chen%2C+S">S. Chen</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Browne%2C+F">F. Browne</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Doornenbal%2C+P">P. Doornenbal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Lee%2C+J">J. Lee</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Obertelli%2C+A">A. Obertelli</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Tsunoda%2C+Y">Y. Tsunoda</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Otsuka%2C+T">T. Otsuka</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Chazono%2C+Y">Y. Chazono</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Hagen%2C+G">G. Hagen</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Holt%2C+J+D">J. D. Holt</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Jansen%2C+G+R">G. R. Jansen</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ogata%2C+K">K. Ogata</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Shimizu%2C+N">N. Shimizu</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Utsuno%2C+Y">Y. Utsuno</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Yoshida%2C+K">K. Yoshida</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Achouri%2C+N+L">N. L. Achouri</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Baba%2C+H">H. Baba</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Calvet%2C+D">D. Calvet</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ch%C3%A2teau%2C+F">F. Ch芒teau</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Chiga%2C+N">N. Chiga</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Corsi%2C+A">A. Corsi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cort%C3%A9s%2C+M+L">M. L. Cort茅s</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Delbart%2C+A">A. Delbart</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Gheller%2C+J+-">J. -M. Gheller</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Giganon%2C+A">A. Giganon</a> , et al. (58 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="2307.07077v1-abstract-short" style="display: inline;"> Gamma decays were observed in $^{56}$Ca and $^{58}$Ca following quasi-free one-proton knockout reactions from $^{57,59}$Sc beams at $\approx 200$ MeV/nucleon. For $^{56}$Ca, a $纬$ ray transition was measured to be 1456(12) keV, while for $^{58}$Ca an indication for a transition was observed at 1115(34) keV. Both transitions were tentatively assigned as the $2^+_1 \rightarrow 0^+_{gs}$ decays, and&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.07077v1-abstract-full').style.display = 'inline'; document.getElementById('2307.07077v1-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2307.07077v1-abstract-full" style="display: none;"> Gamma decays were observed in $^{56}$Ca and $^{58}$Ca following quasi-free one-proton knockout reactions from $^{57,59}$Sc beams at $\approx 200$ MeV/nucleon. For $^{56}$Ca, a $纬$ ray transition was measured to be 1456(12) keV, while for $^{58}$Ca an indication for a transition was observed at 1115(34) keV. Both transitions were tentatively assigned as the $2^+_1 \rightarrow 0^+_{gs}$ decays, and were compared to results from ab initio and conventional shell-model approaches. A shell-model calculation in a wide model space with a marginally modified effective nucleon-nucleon interaction depicts excellent agreement with experiment for $2^+_1$ level energies, two-neutron separation energies, and reaction cross sections, corroborating the formation of a new nuclear shell above the $N$ = 34 shell. Its constituents, the $0f_{5/2}$ and $0g_{9/2}$ orbitals, are almost degenerate. This degeneracy precludes the possibility for a doubly magic $^{60}$Ca and potentially drives the dripline of Ca isotopes to $^{70}$Ca or even beyond. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.07077v1-abstract-full').style.display = 'none'; document.getElementById('2307.07077v1-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 13 July, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">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> Phys. Lett. B 843 (2023) 138025 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2307.06867">arXiv:2307.06867</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2307.06867">pdf</a>, <a href="https://arxiv.org/format/2307.06867">other</a>]&nbsp;</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="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epja/s10050-022-00873-w">10.1140/epja/s10050-022-00873-w <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Silicon tracker array for RIB experiments at SAMURAI </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=Stefanescu%2C+A+I">A. I. Stefanescu</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Panin%2C+V">V. Panin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Trache%2C+L">L. Trache</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Motobayashi%2C+T">T. Motobayashi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Otsu%2C+H">H. Otsu</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Saastamoinen%2C+A">A. Saastamoinen</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Uesaka%2C+T">T. Uesaka</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Stuhl%2C+L">L. Stuhl</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Tanaka%2C+J">J. Tanaka</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Tudor%2C+D">D. Tudor</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Stefanescu%2C+I+C">I. C. Stefanescu</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Spiridon%2C+A+E">A. E. Spiridon</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Yoneda%2C+K">K. Yoneda</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Baba%2C+H">H. Baba</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Kurokawa%2C+M">M. Kurokawa</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Togano%2C+Y">Y. Togano</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Halasz%2C+Z">Z. Halasz</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Sasano%2C+M">M. Sasano</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ota%2C+S">S. Ota</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Kubota%2C+Y">Y. Kubota</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ahn%2C+D+S">D. S. Ahn</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Kobayashi%2C+T">T. Kobayashi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Elekes%2C+Z">Z. Elekes</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Fukuda%2C+N">N. Fukuda</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Takeda%2C+H">H. Takeda</a> , et al. (27 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="2307.06867v1-abstract-short" style="display: inline;"> This work describes a silicon tracker system developed for experiments with proton-rich radioactive ion beams at the SAMURAI superconducting spectrometer of RIBF at RIKEN. The system is designed for accurate angular reconstruction and atomic number identification of relativistic heavy ions and protons which are simultaneously produced in reactions motivated by studies of proton capture reactions o&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.06867v1-abstract-full').style.display = 'inline'; document.getElementById('2307.06867v1-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2307.06867v1-abstract-full" style="display: none;"> This work describes a silicon tracker system developed for experiments with proton-rich radioactive ion beams at the SAMURAI superconducting spectrometer of RIBF at RIKEN. The system is designed for accurate angular reconstruction and atomic number identification of relativistic heavy ions and protons which are simultaneously produced in reactions motivated by studies of proton capture reactions of interest for nuclear astrophysics. The technical characteristics of the tracking array are described in detail as are its performance in two pilot experiments. The physics justification for such a system is also presented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.06867v1-abstract-full').style.display = 'none'; document.getElementById('2307.06867v1-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 13 July, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. A (2022) 58:223 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2305.18205">arXiv:2305.18205</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2305.18205">pdf</a>]&nbsp;</span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Signal Processing">eess.SP</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="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/10.1109/TNS.2024.3444888">10.1109/TNS.2024.3444888 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Pulse shape discrimination based on the Tempotron: a powerful classifier on GPU </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=Liu%2C+H">Haoran Liu</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Li%2C+P">Peng Li</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Liu%2C+M">Ming-Zhe Liu</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Wang%2C+K">Kai-Ming Wang</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Zuo%2C+Z">Zhuo Zuo</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Liu%2C+B">Bing-Qi Liu</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="2305.18205v2-abstract-short" style="display: inline;"> This study utilized the Tempotron, a robust classifier based on a third-generation neural network model, for pulse shape discrimination. By eliminating the need for manual feature extraction, the Tempotron model can process pulse signals directly, generating discrimination results based on prior knowledge. The study performed experiments using GPU acceleration, resulting in over 500 times faster c&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2305.18205v2-abstract-full').style.display = 'inline'; document.getElementById('2305.18205v2-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2305.18205v2-abstract-full" style="display: none;"> This study utilized the Tempotron, a robust classifier based on a third-generation neural network model, for pulse shape discrimination. By eliminating the need for manual feature extraction, the Tempotron model can process pulse signals directly, generating discrimination results based on prior knowledge. The study performed experiments using GPU acceleration, resulting in over 500 times faster compared to the CPU-based model, and investigated the impact of noise augmentation on the Tempotron performance. Experimental results substantiated that Tempotron serves as a formidable classifier, adept at accomplishing high discrimination accuracy on both AmBe and time-of-flight PuBe datasets. Furthermore, analyzing the neural activity of Tempotron during training shed light on its learning characteristics and aided in selecting its hyperparameters. Moreover, the study addressed the constraints and potential avenues for future development in utilizing the Tempotron for pulse shape discrimination. The dataset used in this study and the GPU-based Tempotron are publicly available on GitHub at https://github.com/HaoranLiu507/TempotronGPU. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2305.18205v2-abstract-full').style.display = 'none'; document.getElementById('2305.18205v2-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 May, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 9 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> IEEE Transactions on Nuclear Science (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2305.06711">arXiv:2305.06711</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2305.06711">pdf</a>, <a href="https://arxiv.org/format/2305.06711">other</a>]&nbsp;</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.109.044901">10.1103/PhysRevC.109.044901 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of $螢_{c}^{+}$ production in $p$Pb collisions at $\sqrt{s_{NN}}=8.16$ TeV at LHCb </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aaij%2C+R">R. Aaij</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adeva%2C+B">B. Adeva</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Akar%2C+S">S. Akar</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Akiba%2C+K">K. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alessio%2C+F">F. Alessio</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alexander%2C+M">M. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amalric%2C+R">R. Amalric</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amato%2C+S">S. Amato</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amey%2C+J+L">J. L. Amey</a> , et al. (1040 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2305.06711v4-abstract-short" style="display: inline;"> A study of prompt $螢_{c}^{+}$ production in proton-lead collisions is performed with the LHCb experiment at a centre-of-mass energy per nucleon pair of 8.16 TeV in 2016 in $p$Pb and Pb$p$ collisions with an estimated integrated luminosity of approximately 12.5 and 17.4 nb$^{-1}$, respectively. The $螢_{c}^{+}$ production cross-section, as well as the $螢_{c}^{+}$ to $螞_{c}^{+}$ production cross-sect&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2305.06711v4-abstract-full').style.display = 'inline'; document.getElementById('2305.06711v4-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2305.06711v4-abstract-full" style="display: none;"> A study of prompt $螢_{c}^{+}$ production in proton-lead collisions is performed with the LHCb experiment at a centre-of-mass energy per nucleon pair of 8.16 TeV in 2016 in $p$Pb and Pb$p$ collisions with an estimated integrated luminosity of approximately 12.5 and 17.4 nb$^{-1}$, respectively. The $螢_{c}^{+}$ production cross-section, as well as the $螢_{c}^{+}$ to $螞_{c}^{+}$ production cross-section ratio, are measured as a function of the transverse momentum and rapidity and compared to latest theory predictions. The forward-backward asymmetry is also measured as a function of the $螢_{c}^{+}$ transverse momentum. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2305.06711v4-abstract-full').style.display = 'none'; document.getElementById('2305.06711v4-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 11 May, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-041.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2022-041, CERN-EP-2023-057 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physical Review C 109, 044901 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2304.13921">arXiv:2304.13921</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2304.13921">pdf</a>, <a href="https://arxiv.org/ps/2304.13921">ps</a>, <a href="https://arxiv.org/format/2304.13921">other</a>]&nbsp;</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.130.251902">10.1103/PhysRevLett.130.251902 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First study of reaction $螢^{0}n\rightarrow螢^{-}p$ using $螢^0$-nucleus scattering at an electron-positron collider </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=An%2C+M+R">M. R. An</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=An%2C+Q">Q. An</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bai%2C+Y">Y. Bai</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bakina%2C+O">O. Bakina</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Balossino%2C+I">I. Balossino</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ban%2C+Y">Y. Ban</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Batozskaya%2C+V">V. Batozskaya</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Berger%2C+N">N. Berger</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bianco%2C+E">E. Bianco</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bloms%2C+J">J. Bloms</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bortone%2C+A">A. Bortone</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Boyko%2C+I">I. Boyko</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Brueggemann%2C+A">A. Brueggemann</a> , et al. (593 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2304.13921v3-abstract-short" style="display: inline;"> Using $(1.0087\pm0.0044)\times10^{10}$ $J/蠄$ events collected with the BESIII detector at the BEPCII storage ring, the process $螢^{0}n\rightarrow螢^{-}p$ is studied, where the $螢^0$ baryon is produced in the process $J/蠄\rightarrow螢^0\bar螢^0$ and the neutron is a component of the $^9\rm{Be}$, $^{12}\rm{C}$ and $^{197}\rm{Au}$ nuclei in the beam pipe. A clear signal is observed with a statistical si&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.13921v3-abstract-full').style.display = 'inline'; document.getElementById('2304.13921v3-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2304.13921v3-abstract-full" style="display: none;"> Using $(1.0087\pm0.0044)\times10^{10}$ $J/蠄$ events collected with the BESIII detector at the BEPCII storage ring, the process $螢^{0}n\rightarrow螢^{-}p$ is studied, where the $螢^0$ baryon is produced in the process $J/蠄\rightarrow螢^0\bar螢^0$ and the neutron is a component of the $^9\rm{Be}$, $^{12}\rm{C}$ and $^{197}\rm{Au}$ nuclei in the beam pipe. A clear signal is observed with a statistical significance of $7.1蟽$. The cross section of the reaction $螢^0+{^9\rm{Be}}\rightarrow螢^-+p+{^8\rm{Be}}$ is determined to be $蟽(螢^0+{^9\rm{Be}}\rightarrow螢^-+p+{^8\rm{Be}})=(22.1\pm5.3_{\rm{stat}}\pm4.5_{\rm{sys}})$ mb at the $螢^0$ momentum of $0.818$ GeV/$c$, where the first uncertainty is statistical and the second is systematic. No significant $H$-dibaryon signal is observed in the $螢^-p$ final state. This is the first study of hyperon-nucleon interactions in electron-positron collisions and opens up a new direction for such research. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.13921v3-abstract-full').style.display = 'none'; document.getElementById('2304.13921v3-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 May, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 April, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 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">13 pages, 7 figures, with Supplemental Material</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2304.13770">arXiv:2304.13770</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2304.13770">pdf</a>, <a href="https://arxiv.org/ps/2304.13770">ps</a>, <a href="https://arxiv.org/format/2304.13770">other</a>]&nbsp;</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 novel measurement of the neutron magnetic form factor from A=3 mirror nuclei </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=Santiesteban%2C+S+N">S. N. Santiesteban</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Li%2C+S">S. Li</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abrams%2C+D">D. Abrams</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alsalmi%2C+S">S. Alsalmi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Androic%2C+D">D. Androic</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aniol%2C+K">K. Aniol</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Arrington%2C+J">J. Arrington</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Averett%2C+T">T. Averett</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Gayoso%2C+C+A">C. Ayerbe Gayoso</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bane%2C+J">J. Bane</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Barcus%2C+S">S. Barcus</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Barrow%2C+J">J. Barrow</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Beck%2C+A">A. Beck</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bellini%2C+V">V. Bellini</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhatt%2C+H">H. Bhatt</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhetuwal%2C+D">D. Bhetuwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Biswas%2C+D">D. Biswas</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Camsonne%2C+A">A. Camsonne</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Castellanos%2C+J">J. Castellanos</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Chen%2C+J">J. Chen</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Chen%2C+J">J-P. Chen</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Chrisman%2C+D">D. Chrisman</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Christy%2C+M+E">M. E. Christy</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Clarke%2C+C">C. Clarke</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Covrig%2C+S">S. Covrig</a> , et al. (81 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2304.13770v2-abstract-short" style="display: inline;"> The electromagnetic form factors of the proton and neutron encode information on the spatial structure of their charge and magnetization distributions. While measurements of the proton are relatively straightforward, the lack of a free neutron target makes measurements of the neutron&#39;s electromagnetic structure more challenging and more sensitive to experimental or model-dependent uncertainties. V&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.13770v2-abstract-full').style.display = 'inline'; document.getElementById('2304.13770v2-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2304.13770v2-abstract-full" style="display: none;"> The electromagnetic form factors of the proton and neutron encode information on the spatial structure of their charge and magnetization distributions. While measurements of the proton are relatively straightforward, the lack of a free neutron target makes measurements of the neutron&#39;s electromagnetic structure more challenging and more sensitive to experimental or model-dependent uncertainties. Various experiments have attempted to extract the neutron form factors from scattering from the neutron in deuterium, with different techniques providing different, and sometimes large, systematic uncertainties. We present results from a novel measurement of the neutron magnetic form factor using quasielastic scattering from the mirror nuclei $^3$H and $^3$He, where the nuclear effects are larger than for deuterium but expected to largely cancel in the cross-section ratios. We extracted values of the neutron magnetic form factor for low-to-modest momentum transfer, $0.6&lt;Q^2&lt;2.9$ GeV$^2$, where existing measurements give inconsistent results. The precision and $Q^2$ range of this data allow for a better understanding of the current world&#39;s data, and suggest a path toward further improvement of our overall understanding of the neutron&#39;s magnetic form factor. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.13770v2-abstract-full').style.display = 'none'; document.getElementById('2304.13770v2-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 April, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 132, 162501 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2304.10993">arXiv:2304.10993</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2304.10993">pdf</a>, <a href="https://arxiv.org/format/2304.10993">other</a>]&nbsp;</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.2024.138560">10.1016/j.physletb.2024.138560 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Collision-energy Dependence of Deuteron Cumulants and Proton-deuteron Correlations in Au+Au collisions at RHIC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhosale%2C+S+R">S. R. Bhosale</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Brandenburg%2C+J+D">J. D. Brandenburg</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Broodo%2C+C">C. Broodo</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cai%2C+X+Z">X. Z. Cai</a> , et al. (343 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2304.10993v2-abstract-short" style="display: inline;"> We report the first measurements of cumulants, up to $4^{th}$ order, of deuteron number distributions and proton-deuteron correlations in Au+Au collisions recorded by the STAR experiment in phase-I of Beam Energy Scan (BES) program at the Relativistic Heavy Ion Collider. Deuteron cumulants, their ratios, and proton-deuteron mixed cumulants are presented for different collision centralities coverin&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.10993v2-abstract-full').style.display = 'inline'; document.getElementById('2304.10993v2-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2304.10993v2-abstract-full" style="display: none;"> We report the first measurements of cumulants, up to $4^{th}$ order, of deuteron number distributions and proton-deuteron correlations in Au+Au collisions recorded by the STAR experiment in phase-I of Beam Energy Scan (BES) program at the Relativistic Heavy Ion Collider. Deuteron cumulants, their ratios, and proton-deuteron mixed cumulants are presented for different collision centralities covering a range of center-of-mass energy per nucleon pair $\sqrt{s_{NN}}$~=~7.7 to 200~GeV. It is found that the cumulant ratios at lower collision energies favor a canonical ensemble over a grand canonical ensemble in thermal models. An anti-correlation between proton and deuteron multiplicity is observed across all collision energies and centralities, consistent with the expectation from global baryon number conservation. The UrQMD model coupled with a phase-space coalescence mechanism qualitatively reproduces the collision-energy dependence of cumulant ratios and proton-deuteron correlations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.10993v2-abstract-full').style.display = 'none'; document.getElementById('2304.10993v2-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 April, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 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">10 pages, 4 figures; published in Physics Letters B</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Lett. B 855 (2024) 138560 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2304.10037">arXiv:2304.10037</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2304.10037">pdf</a>, <a href="https://arxiv.org/format/2304.10037">other</a>]&nbsp;</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.108.014909">10.1103/PhysRevC.108.014909 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Event-by-event correlations between $螞$ ($\bar螞$) hyperon global polarization and handedness with charged hadron azimuthal separation in Au+Au collisions at $\sqrt{s_{\text{NN}}} = 27 \text{ GeV}$ from STAR </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aitbaev%2C+A">A. Aitbaev</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aparin%2C+A">A. Aparin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Baker%2C+W">W. Baker</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Brandenburg%2C+J+D">J. D. Brandenburg</a> , et al. (333 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2304.10037v2-abstract-short" style="display: inline;"> Global polarizations ($P$) of $螞$ ($\bar螞$) hyperons have been observed in non-central heavy-ion collisions. The strong magnetic field primarily created by the spectator protons in such collisions would split the $螞$ and $\bar螞$ global polarizations ($螖P = P_螞 - P_{\bar螞} &lt; 0$). Additionally, quantum chromodynamics (QCD) predicts topological charge fluctuations in vacuum, resulting in a chirality&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.10037v2-abstract-full').style.display = 'inline'; document.getElementById('2304.10037v2-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2304.10037v2-abstract-full" style="display: none;"> Global polarizations ($P$) of $螞$ ($\bar螞$) hyperons have been observed in non-central heavy-ion collisions. The strong magnetic field primarily created by the spectator protons in such collisions would split the $螞$ and $\bar螞$ global polarizations ($螖P = P_螞 - P_{\bar螞} &lt; 0$). Additionally, quantum chromodynamics (QCD) predicts topological charge fluctuations in vacuum, resulting in a chirality imbalance or parity violation in a local domain. This would give rise to an imbalance ($螖n = \frac{N_{\text{L}} - N_{\text{R}}}{\langle N_{\text{L}} + N_{\text{R}} \rangle} \neq 0$) between left- and right-handed $螞$ ($\bar螞$) as well as a charge separation along the magnetic field, referred to as the chiral magnetic effect (CME). This charge separation can be characterized by the parity-even azimuthal correlator ($螖纬$) and parity-odd azimuthal harmonic observable ($螖a_{1}$). Measurements of $螖P$, $螖纬$, and $螖a_{1}$ have not led to definitive conclusions concerning the CME or the magnetic field, and $螖n$ has not been measured previously. Correlations among these observables may reveal new insights. This paper reports measurements of correlation between $螖n$ and $螖a_{1}$, which is sensitive to chirality fluctuations, and correlation between $螖P$ and $螖纬$ sensitive to magnetic field in Au+Au collisions at 27 GeV. For both measurements, no correlations have been observed beyond statistical fluctuations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.10037v2-abstract-full').style.display = 'none'; document.getElementById('2304.10037v2-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 July, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 19 April, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 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">10 pages, 10 figures; paper from the STAR Collaboration</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 108, 014909 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2304.03430">arXiv:2304.03430</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2304.03430">pdf</a>, <a href="https://arxiv.org/format/2304.03430">other</a>]&nbsp;</span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Observation of the electromagnetic field effect via charge-dependent directed flow in heavy-ion collisions at the Relativistic Heavy Ion Collider </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aitbaev%2C+A">A. Aitbaev</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alpatov%2C+E">E. Alpatov</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aparin%2C+A">A. Aparin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhosale%2C+S+R">S. R. Bhosale</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Brandenburg%2C+J+D">J. D. Brandenburg</a> , et al. (331 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2304.03430v2-abstract-short" style="display: inline;"> The deconfined quark-gluon plasma (QGP) created in relativistic heavy-ion collisions enables the exploration of the fundamental properties of matter under extreme conditions. Non-central collisions can produce strong magnetic fields on the order of $10^{18}$ Gauss, which offers a probe into the electrical conductivity of the QGP. In particular, quarks and anti-quarks carry opposite charges and rec&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.03430v2-abstract-full').style.display = 'inline'; document.getElementById('2304.03430v2-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2304.03430v2-abstract-full" style="display: none;"> The deconfined quark-gluon plasma (QGP) created in relativistic heavy-ion collisions enables the exploration of the fundamental properties of matter under extreme conditions. Non-central collisions can produce strong magnetic fields on the order of $10^{18}$ Gauss, which offers a probe into the electrical conductivity of the QGP. In particular, quarks and anti-quarks carry opposite charges and receive contrary electromagnetic forces that alter their momenta. This phenomenon can be manifested in the collective motion of final-state particles, specifically in the rapidity-odd directed flow, denoted as $v_1(\mathsf{y})$. Here we present the charge-dependent measurements of $dv_1/d\mathsf{y}$ near midrapidities for $蟺^{\pm}$, $K^{\pm}$, and $p(\bar{p})$ in Au+Au and isobar ($_{44}^{96}$Ru+$_{44}^{96}$Ru and $_{40}^{96}$Zr+$_{40}^{96}$Zr) collisions at $\sqrt{s_{\rm NN}}=$ 200 GeV, and in Au+Au collisions at 27 GeV, recorded by the STAR detector at the Relativistic Heavy Ion Collider. The combined dependence of the $v_1$ signal on collision system, particle species, and collision centrality can be qualitatively and semi-quantitatively understood as several effects on constituent quarks. While the results in central events can be explained by the $u$ and $d$ quarks transported from initial-state nuclei, those in peripheral events reveal the impacts of the electromagnetic field on the QGP. Our data put valuable constraints on the electrical conductivity of the QGP in theoretical calculations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.03430v2-abstract-full').style.display = 'none'; document.getElementById('2304.03430v2-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 February, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 6 April, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2303.09074">arXiv:2303.09074</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2303.09074">pdf</a>, <a href="https://arxiv.org/format/2303.09074">other</a>]&nbsp;</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/PhysRevLett.131.202301">10.1103/PhysRevLett.131.202301 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Hyperon polarization along the beam direction relative to the second and third harmonic event planes in isobar collisions at $\sqrt{s_{NN}}$ = 200 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aitbaev%2C+A">A. Aitbaev</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aparin%2C+A">A. Aparin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Baker%2C+W">W. Baker</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Brandenburg%2C+J+D">J. D. Brandenburg</a> , et al. (338 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="2303.09074v2-abstract-short" style="display: inline;"> The polarization of $螞$ and $\bar螞$ hyperons along the beam direction has been measured relative to the second and third harmonic event planes in isobar Ru+Ru and Zr+Zr collisions at $\sqrt{s_{NN}}$ = 200 GeV. This is the first experimental evidence of the hyperon polarization by the triangular flow originating from the initial density fluctuations. The amplitudes of the sine modulation for the se&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.09074v2-abstract-full').style.display = 'inline'; document.getElementById('2303.09074v2-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2303.09074v2-abstract-full" style="display: none;"> The polarization of $螞$ and $\bar螞$ hyperons along the beam direction has been measured relative to the second and third harmonic event planes in isobar Ru+Ru and Zr+Zr collisions at $\sqrt{s_{NN}}$ = 200 GeV. This is the first experimental evidence of the hyperon polarization by the triangular flow originating from the initial density fluctuations. The amplitudes of the sine modulation for the second and third harmonic results are comparable in magnitude, increase from central to peripheral collisions, and show a mild $p_T$ dependence. The azimuthal angle dependence of the polarization follows the vorticity pattern expected due to elliptic and triangular anisotropic flow, and qualitatively disagree with most hydrodynamic model calculations based on thermal vorticity and shear induced contributions. The model results based on one of existing implementations of the shear contribution lead to a correct azimuthal angle dependence, but predict centrality and $p_T$ dependence that still disagree with experimental measurements. Thus, our results provide stringent constraints on the thermal vorticity and shear-induced contributions to hyperon polarization. Comparison to previous measurements at RHIC and the LHC for the second-order harmonic results shows little dependence on the collision system size and collision energy. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.09074v2-abstract-full').style.display = 'none'; document.getElementById('2303.09074v2-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 16 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">6 pages, 5 figures, Published in Physical Review Letters</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 131, 202301 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2303.06590">arXiv:2303.06590</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2303.06590">pdf</a>, <a href="https://arxiv.org/format/2303.06590">other</a>]&nbsp;</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/10.1007/JHEP06(2023)176">10.1007/JHEP06(2023)176 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of electrons from open heavy-flavor hadron decays in Au+Au collisions at $\sqrt{s_{\rm NN}}=200$ GeV with the STAR detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Baker%2C+W">W. Baker</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Brandenburg%2C+J+D">J. D. Brandenburg</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cai%2C+X+Z">X. Z. Cai</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="2303.06590v4-abstract-short" style="display: inline;"> We report a new measurement of the production of electrons from open heavy-flavor hadron decays (HFEs) at mid-rapidity ($|y|&lt;$ 0.7) in Au+Au collisions at $\sqrt{s_{\rm NN}}=200$ GeV. Invariant yields of HFEs are measured for the transverse momentum range of $3.5 &lt; p_{\rm T} &lt; 9$ GeV/$c$ in various configurations of the collision geometry. The HFE yields in head-on Au+Au collisions are suppressed&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.06590v4-abstract-full').style.display = 'inline'; document.getElementById('2303.06590v4-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2303.06590v4-abstract-full" style="display: none;"> We report a new measurement of the production of electrons from open heavy-flavor hadron decays (HFEs) at mid-rapidity ($|y|&lt;$ 0.7) in Au+Au collisions at $\sqrt{s_{\rm NN}}=200$ GeV. Invariant yields of HFEs are measured for the transverse momentum range of $3.5 &lt; p_{\rm T} &lt; 9$ GeV/$c$ in various configurations of the collision geometry. The HFE yields in head-on Au+Au collisions are suppressed by approximately a factor of 2 compared to that in $p$+$p$ collisions scaled by the average number of binary collisions, indicating strong interactions between heavy quarks and the hot and dense medium created in heavy-ion collisions. Comparison of these results with models provides additional tests of theoretical calculations of heavy quark energy loss in the quark-gluon plasma. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.06590v4-abstract-full').style.display = 'none'; document.getElementById('2303.06590v4-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 June, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 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">Journal ref:</span> JHEP 06 (2023) 176 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2303.03546">arXiv:2303.03546</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2303.03546">pdf</a>, <a href="https://arxiv.org/format/2303.03546">other</a>]&nbsp;</span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2023.138071">10.1016/j.physletb.2023.138071 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Elliptic Flow of Heavy-Flavor Decay Electrons in Au+Au Collisions at $\sqrt{s_{_{\rm NN}}}$ = 27 and 54.4 GeV at RHIC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Baker%2C+W">W. Baker</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Brandenburg%2C+J+D">J. D. Brandenburg</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Cai%2C+X+Z">X. Z. Cai</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="2303.03546v3-abstract-short" style="display: inline;"> We report on new measurements of elliptic flow ($v_2$) of electrons from heavy-flavor hadron decays at mid-rapidity ($|y|&lt;0.8$) in Au+Au collisions at $\sqrt{s_{_{\rm NN}}}$ = 27 and 54.4 GeV from the STAR experiment. Heavy-flavor decay electrons ($e^{\rm HF}$) in Au+Au collisions at $\sqrt{s_{_{\rm NN}}}$ = 54.4 GeV exhibit a non-zero $v_2$ in the transverse momentum ($p_{\rm T}$) region of&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.03546v3-abstract-full').style.display = 'inline'; document.getElementById('2303.03546v3-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2303.03546v3-abstract-full" style="display: none;"> We report on new measurements of elliptic flow ($v_2$) of electrons from heavy-flavor hadron decays at mid-rapidity ($|y|&lt;0.8$) in Au+Au collisions at $\sqrt{s_{_{\rm NN}}}$ = 27 and 54.4 GeV from the STAR experiment. Heavy-flavor decay electrons ($e^{\rm HF}$) in Au+Au collisions at $\sqrt{s_{_{\rm NN}}}$ = 54.4 GeV exhibit a non-zero $v_2$ in the transverse momentum ($p_{\rm T}$) region of $p_{\rm T}&lt;$ 2 GeV/$c$ with the magnitude comparable to that at $\sqrt{s_{_{\rm NN}}}=200$ GeV. The measured $e^{\rm HF}$ $v_2$ at 54.4 GeV is also consistent with the expectation of their parent charm hadron $v_2$ following number-of-constituent-quark scaling as other light and strange flavor hadrons at this energy. These suggest that charm quarks gain significant collectivity through the evolution of the QCD medium and may reach local thermal equilibrium in Au+Au collisions at $\sqrt{s_{_{\rm NN}}}=54.4$ GeV. The measured $e^{\rm HF}$ $v_2$ in Au+Au collisions at $\sqrt{s_{_{\rm NN}}}=$ 27 GeV is consistent with zero within large uncertainties. The energy dependence of $v_2$ for different flavor particles ($蟺,蠁,D^{0}/e^{\rm HF}$) shows an indication of quark mass hierarchy in reaching thermalization in high-energy nuclear collisions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.03546v3-abstract-full').style.display = 'none'; document.getElementById('2303.03546v3-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 3 August, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 6 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">12 pages, 7 figures, 1 table</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physics Letters B (2023) 844:138071 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2302.10460">arXiv:2302.10460</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2302.10460">pdf</a>, <a href="https://arxiv.org/format/2302.10460">other</a>]&nbsp;</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/10.1103/PhysRevD.108.033002">10.1103/PhysRevD.108.033002 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> How to measure the reactor neutrino flux below the inverse beta decay threshold with CE$谓$NS </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=Liao%2C+J">Jiajun Liao</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Liu%2C+H">Hongkai Liu</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Marfatia%2C+D">Danny Marfatia</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="2302.10460v2-abstract-short" style="display: inline;"> Most antineutrinos produced in a nuclear reactor have energies below the inverse beta decay threshold, and have not yet been detected. We show that a coherent elastic neutrino-nucleus scattering experiment with an ultra-low energy threshold like NUCLEUS can measure the flux of reactor neutrinos below 1.8 MeV. Using a regularized unfolding procedure, we find that a meaningful upper bound can be pla&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.10460v2-abstract-full').style.display = 'inline'; document.getElementById('2302.10460v2-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2302.10460v2-abstract-full" style="display: none;"> Most antineutrinos produced in a nuclear reactor have energies below the inverse beta decay threshold, and have not yet been detected. We show that a coherent elastic neutrino-nucleus scattering experiment with an ultra-low energy threshold like NUCLEUS can measure the flux of reactor neutrinos below 1.8 MeV. Using a regularized unfolding procedure, we find that a meaningful upper bound can be placed on the low energy flux, but the existence of the neutron capture component cannot be established. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.10460v2-abstract-full').style.display = 'none'; document.getElementById('2302.10460v2-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 August, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 February, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">6 pages, 7 figures. Version to appear in PRD</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 108, 033002 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2301.13253">arXiv:2301.13253</a> <span>&nbsp;[<a href="https://arxiv.org/pdf/2301.13253">pdf</a>, <a href="https://arxiv.org/format/2301.13253">other</a>]&nbsp;</span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</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.ppnp.2023.104080">10.1016/j.ppnp.2023.104080 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Dense Nuclear Matter Equation of State from Heavy-Ion Collisions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&amp;query=Sorensen%2C+A">Agnieszka Sorensen</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Agarwal%2C+K">Kshitij Agarwal</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Brown%2C+K+W">Kyle W. Brown</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Chaj%C4%99cki%2C+Z">Zbigniew Chaj臋cki</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Danielewicz%2C+P">Pawe艂 Danielewicz</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Drischler%2C+C">Christian Drischler</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Gandolfi%2C+S">Stefano Gandolfi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Holt%2C+J+W">Jeremy W. Holt</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Kaminski%2C+M">Matthias Kaminski</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Ko%2C+C">Che-Ming Ko</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Kumar%2C+R">Rohit Kumar</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Li%2C+B">Bao-An Li</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Lynch%2C+W+G">William G. Lynch</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=McIntosh%2C+A+B">Alan B. McIntosh</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Newton%2C+W+G">William G. Newton</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Pratt%2C+S">Scott Pratt</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Savchuk%2C+O">Oleh Savchuk</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Stefaniak%2C+M">Maria Stefaniak</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Tews%2C+I">Ingo Tews</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Tsang%2C+M+B">ManYee Betty Tsang</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Vogt%2C+R">Ramona Vogt</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Wolter%2C+H">Hermann Wolter</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Zbroszczyk%2C+H">Hanna Zbroszczyk</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Abbasi%2C+N">Navid Abbasi</a>, <a href="/search/nucl-ex?searchtype=author&amp;query=Aichelin%2C+J">J枚rg Aichelin</a> , et al. (111 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="2301.13253v4-abstract-short" style="display: inline;"> The nuclear equation of state (EOS) is at the center of numerous theoretical and experimental efforts in nuclear physics. With advances in microscopic theories for nuclear interactions, the availability of experiments probing nuclear matter under conditions not reached before, endeavors to develop sophisticated and reliable transport simulations to interpret these experiments, and the advent of mu&hellip; <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2301.13253v4-abstract-full').style.display = 'inline'; document.getElementById('2301.13253v4-abstract-short').style.display = 'none';">&#9661; More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2301.13253v4-abstract-full" style="display: none;"> The nuclear equation of state (EOS) is at the center of numerous theoretical and experimental efforts in nuclear physics. With advances in microscopic theories for nuclear interactions, the availability of experiments probing nuclear matter under conditions not reached before, endeavors to develop sophisticated and reliable transport simulations to interpret these experiments, and the advent of multi-messenger astronomy, the next decade will bring new opportunities for determining the nuclear matter EOS, elucidating its dependence on density, temperature, and isospin asymmetry. Among controlled terrestrial experiments, collisions of heavy nuclei at intermediate beam energies (from a few tens of MeV/nucleon to about 25 GeV/nucleon in the fixed-target frame) probe the widest ranges of baryon density and temperature, enabling studies of nuclear matter from a few tenths to about 5 times the nuclear saturation density and for temperatures from a few to well above a hundred MeV, respectively. Collisions of neutron-rich isotopes further bring the opportunity to probe effects due to the isospin asymmetry. However, capitalizing on the enormous scientific effort aimed at uncovering the dense nuclear matter EOS, both at RHIC and at FRIB as well as at other international facilities, depends on the continued development of state-of-the-art hadronic transport simulations. This white paper highlights the essential role that heavy-ion collision experiments and hadronic transport simulations play in understanding strong interactions in dense nuclear matter, with an emphasis on how these efforts can be used together with microscopic approaches and neutron star studies to uncover the nuclear EOS. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2301.13253v4-abstract-full').style.display = 'none'; document.getElementById('2301.13253v4-abstract-short').style.display = 'inline';">&#9651; Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 25 January, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 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">White paper prepared for the 2023 Long Range Plan. v3: Updated version as published in Progress in Particle and Nuclear Physics. Note: the published version does not include the executive summary; in the updated arXiv version, the executive summary is included as an appendix. v4: Corrected list of authors</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> INT-PUB-23-001, LA-UR-23-20514, LLNL-TR-844629 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Prog.Part.Nucl.Phys. 134 (2024) 104080 </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&amp;query=Liu%2C+H&amp;start=50" class="pagination-next" >Next </a> <ul class="pagination-list"> <li> <a href="/search/?searchtype=author&amp;query=Liu%2C+H&amp;start=0" class="pagination-link is-current" aria-label="Goto page 1">1 </a> </li> <li> <a 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