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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"> Dynamics of Magnetic Evaporative Beamline Cooling for Preparation of Cold Atomic Beams </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Esfahani%2C+A+A">A. Ashtari Esfahani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhagvati%2C+S">S. Bhagvati</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6ser%2C+S">S. B枚ser</a>, <a href="/search/nucl-ex?searchtype=author&query=Brandsema%2C+M+J">M. J. Brandsema</a>, <a href="/search/nucl-ex?searchtype=author&query=Cabral%2C+R">R. Cabral</a>, <a href="/search/nucl-ex?searchtype=author&query=Chirayath%2C+V+A">V. A. Chirayath</a>, <a href="/search/nucl-ex?searchtype=author&query=Claessens%2C+C">C. Claessens</a>, <a href="/search/nucl-ex?searchtype=author&query=Coward%2C+N">N. Coward</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Viveiros%2C+L">L. de Viveiros</a>, <a href="/search/nucl-ex?searchtype=author&query=Doe%2C+P+J">P. J. Doe</a>, <a href="/search/nucl-ex?searchtype=author&query=Elliott%2C+M+G">M. G. Elliott</a>, <a href="/search/nucl-ex?searchtype=author&query=Enomoto%2C+S">S. Enomoto</a>, <a href="/search/nucl-ex?searchtype=author&query=Fertl%2C+M">M. Fertl</a>, <a href="/search/nucl-ex?searchtype=author&query=Formaggio%2C+J+A">J. A. Formaggio</a>, <a href="/search/nucl-ex?searchtype=author&query=Foust%2C+B+T">B. T. Foust</a>, <a href="/search/nucl-ex?searchtype=author&query=Gaison%2C+J+K">J. K. Gaison</a>, <a href="/search/nucl-ex?searchtype=author&query=Harmston%2C+P">P. Harmston</a>, <a href="/search/nucl-ex?searchtype=author&query=Heeger%2C+K+M">K. M. Heeger</a>, <a href="/search/nucl-ex?searchtype=author&query=Jones%2C+B+J+P">B. J. P. Jones</a>, <a href="/search/nucl-ex?searchtype=author&query=Karim%2C+E">E. Karim</a>, <a href="/search/nucl-ex?searchtype=author&query=Kazkaz%2C+K">K. Kazkaz</a>, <a href="/search/nucl-ex?searchtype=author&query=Kolbeck%2C+P+T">P. T. Kolbeck</a>, <a href="/search/nucl-ex?searchtype=author&query=Li%2C+M">M. Li</a>, <a href="/search/nucl-ex?searchtype=author&query=Lindman%2C+A">A. Lindman</a>, <a href="/search/nucl-ex?searchtype=author&query=Liu%2C+C+Y">C. Y. Liu</a> , et al. (33 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="2502.00188v1-abstract-short" style="display: inline;"> The most sensitive direct neutrino mass searches today are based on measurement of the endpoint of the beta spectrum of tritium to infer limits on the mass of the unobserved recoiling neutrino. To avoid the smearing associated with the distribution of molecular final states in the T-He molecule, the next generation of these experiments will need to employ atomic (T) rather than molecular (T$_{2}$)… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2502.00188v1-abstract-full').style.display = 'inline'; document.getElementById('2502.00188v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2502.00188v1-abstract-full" style="display: none;"> The most sensitive direct neutrino mass searches today are based on measurement of the endpoint of the beta spectrum of tritium to infer limits on the mass of the unobserved recoiling neutrino. To avoid the smearing associated with the distribution of molecular final states in the T-He molecule, the next generation of these experiments will need to employ atomic (T) rather than molecular (T$_{2}$) tritium sources. Following production, atomic T can be trapped in gravitational and / or magnetic bottles for beta spectrum experiments, if and only if it can first be cooled to millikelvin temperatures. Accomplishing this cooling presents substantial technological challenges. The Project 8 collaboration is developing a technique based on magnetic evaporative cooling along a beamline (MECB) for the purpose of cooling T to feed a magneto-gravitational trap that also serves as a cyclotron radiation emission spectroscope. Initial tests of the approach are planned in a pathfinder apparatus using atomic Li. This paper presents a method for analyzing the dynamics of the MECB technique, and applies these calculations to the design of systems for cooling and slowing of atomic Li and T. A scheme is outlined that could provide a current of T at the millikelvin temperatures required for the Project 8 neutrino mass search. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2502.00188v1-abstract-full').style.display = 'none'; document.getElementById('2502.00188v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 31 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2025. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2501.11539">arXiv:2501.11539</a> <span> [<a href="https://arxiv.org/pdf/2501.11539">pdf</a>, <a href="https://arxiv.org/format/2501.11539">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> </div> <p class="title is-5 mathjax"> Evolution of two-neutrons configuration from 11Li to 13Li </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Andr%C3%A8%2C+P">P. Andr猫</a>, <a href="/search/nucl-ex?searchtype=author&query=Corsi%2C+A">A. Corsi</a>, <a href="/search/nucl-ex?searchtype=author&query=Revel%2C+A">A. Revel</a>, <a href="/search/nucl-ex?searchtype=author&query=Kubota%2C+Y">Y. Kubota</a>, <a href="/search/nucl-ex?searchtype=author&query=Casal%2C+J">J. Casal</a>, <a href="/search/nucl-ex?searchtype=author&query=Fossez%2C+K">K. Fossez</a>, <a href="/search/nucl-ex?searchtype=author&query=Gomez-Camacho%2C+J">J. Gomez-Camacho</a>, <a href="/search/nucl-ex?searchtype=author&query=Gomez-Ramos%2C+M">M. Gomez-Ramos</a>, <a href="/search/nucl-ex?searchtype=author&query=Moro%2C+A+M">A. M. Moro</a>, <a href="/search/nucl-ex?searchtype=author&query=Authelet%2C+G">G. Authelet</a>, <a href="/search/nucl-ex?searchtype=author&query=Baba%2C+H">H. Baba</a>, <a href="/search/nucl-ex?searchtype=author&query=Caesar%2C+C">C. Caesar</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvet%2C+D">D. Calvet</a>, <a href="/search/nucl-ex?searchtype=author&query=Delbart%2C+A">A. Delbart</a>, <a href="/search/nucl-ex?searchtype=author&query=Dozono%2C+M">M. Dozono</a>, <a href="/search/nucl-ex?searchtype=author&query=Feng%2C+J">J. Feng</a>, <a href="/search/nucl-ex?searchtype=author&query=Flavigny%2C+F">F. Flavigny</a>, <a href="/search/nucl-ex?searchtype=author&query=Gheller%2C+J+-">J. -M. Gheller</a>, <a href="/search/nucl-ex?searchtype=author&query=Gibelin%2C+J">J. Gibelin</a>, <a href="/search/nucl-ex?searchtype=author&query=Giganon%2C+A">A. Giganon</a>, <a href="/search/nucl-ex?searchtype=author&query=Gillibert%2C+A">A. Gillibert</a>, <a href="/search/nucl-ex?searchtype=author&query=Hasegawa%2C+K">K. Hasegawa</a>, <a href="/search/nucl-ex?searchtype=author&query=Isobe%2C+T">T. Isobe</a>, <a href="/search/nucl-ex?searchtype=author&query=Kanaya%2C+Y">Y. Kanaya</a>, <a href="/search/nucl-ex?searchtype=author&query=Kawakami%2C+S">S. Kawakami</a> , et al. (47 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="2501.11539v1-abstract-short" style="display: inline;"> In this work we investigate the two-neutron decay of 13Li and of the excited states of 11Li populated via one-proton removal from 14Be and 12Be, respectively. A phenomenological model is used to describe the decay of 11Li and 13Li. While the first one displays important sequential components, the second one appears dominated by the direct two-neutron decay. A microscopic three-body model is used t… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2501.11539v1-abstract-full').style.display = 'inline'; document.getElementById('2501.11539v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2501.11539v1-abstract-full" style="display: none;"> In this work we investigate the two-neutron decay of 13Li and of the excited states of 11Li populated via one-proton removal from 14Be and 12Be, respectively. A phenomenological model is used to describe the decay of 11Li and 13Li. While the first one displays important sequential components, the second one appears dominated by the direct two-neutron decay. A microscopic three-body model is used to extract information on the spatial configuration of the emitted neutrons before the decay and shows that the average distance between the neutrons increases going from 11Li to 13Li. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2501.11539v1-abstract-full').style.display = 'none'; document.getElementById('2501.11539v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2025. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett. B 857, 138977 (2024) </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> [<a href="https://arxiv.org/pdf/2412.03602">pdf</a>, <a href="https://arxiv.org/format/2412.03602">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.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&query=Enciu%2C+M">M. Enciu</a>, <a href="/search/nucl-ex?searchtype=author&query=Obertelli%2C+A">A. Obertelli</a>, <a href="/search/nucl-ex?searchtype=author&query=Doornenbal%2C+P">P. Doornenbal</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinz%2C+M">M. Heinz</a>, <a href="/search/nucl-ex?searchtype=author&query=Miyagi%2C+T">T. Miyagi</a>, <a href="/search/nucl-ex?searchtype=author&query=Nowacki%2C+F">F. Nowacki</a>, <a href="/search/nucl-ex?searchtype=author&query=Ogata%2C+K">K. Ogata</a>, <a href="/search/nucl-ex?searchtype=author&query=Poves%2C+A">A. Poves</a>, <a href="/search/nucl-ex?searchtype=author&query=Schwenk%2C+A">A. Schwenk</a>, <a href="/search/nucl-ex?searchtype=author&query=Yoshida%2C+K">K. Yoshida</a>, <a href="/search/nucl-ex?searchtype=author&query=Achouri%2C+N+L">N. L. Achouri</a>, <a href="/search/nucl-ex?searchtype=author&query=Baba%2C+H">H. Baba</a>, <a href="/search/nucl-ex?searchtype=author&query=Browne%2C+F">F. Browne</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvet%2C+D">D. Calvet</a>, <a href="/search/nucl-ex?searchtype=author&query=Ch%C3%A2teau%2C+F">F. Ch芒teau</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+S">S. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Chiga%2C+N">N. Chiga</a>, <a href="/search/nucl-ex?searchtype=author&query=Corsi%2C+A">A. Corsi</a>, <a href="/search/nucl-ex?searchtype=author&query=Cort%C3%A9s%2C+M+L">M. L. Cort茅s</a>, <a href="/search/nucl-ex?searchtype=author&query=Delbart%2C+A">A. Delbart</a>, <a href="/search/nucl-ex?searchtype=author&query=Gheller%2C+J+-">J. -M. Gheller</a>, <a href="/search/nucl-ex?searchtype=author&query=Giganon%2C+A">A. Giganon</a>, <a href="/search/nucl-ex?searchtype=author&query=Gillibert%2C+A">A. Gillibert</a>, <a href="/search/nucl-ex?searchtype=author&query=Hilaire%2C+C">C. Hilaire</a>, <a href="/search/nucl-ex?searchtype=author&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… <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';">▽ 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';">△ 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/2410.13515">arXiv:2410.13515</a> <span> [<a href="https://arxiv.org/pdf/2410.13515">pdf</a>, <a href="https://arxiv.org/format/2410.13515">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - 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&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/nucl-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/nucl-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&query=Afedulidis%2C+O">O. Afedulidis</a>, <a href="/search/nucl-ex?searchtype=author&query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/nucl-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/nucl-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/nucl-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/nucl-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/nucl-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/nucl-ex?searchtype=author&query=Bao%2C+H+-">H. -R. Bao</a>, <a href="/search/nucl-ex?searchtype=author&query=Batozskaya%2C+V">V. Batozskaya</a>, <a href="/search/nucl-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/nucl-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bianco%2C+E">E. Bianco</a>, <a href="/search/nucl-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/nucl-ex?searchtype=author&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… <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';">▽ 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';">△ 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/2409.09367">arXiv:2409.09367</a> <span> [<a href="https://arxiv.org/pdf/2409.09367">pdf</a>, <a href="https://arxiv.org/format/2409.09367">other</a>] </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> <p class="title is-5 mathjax"> Multiple-models prediction for light neutron-rich isotopes cross section by $Q_g$ systematics in $^{40}$Ar projectile fragmentation reactions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Wei%2C+X+B">X. B. Wei</a>, <a href="/search/nucl-ex?searchtype=author&query=Wei%2C+H+L">H. L. Wei</a>, <a href="/search/nucl-ex?searchtype=author&query=Ma%2C+C+W">C. W. Ma</a>, <a href="/search/nucl-ex?searchtype=author&query=Qiao%2C+C+Y">C. Y. Qiao</a>, <a href="/search/nucl-ex?searchtype=author&query=Guo%2C+Y+F">Y. F. Guo</a>, <a href="/search/nucl-ex?searchtype=author&query=Pu%2C+J">J. Pu</a>, <a href="/search/nucl-ex?searchtype=author&query=Cheng%2C+K+X">K. X. Cheng</a>, <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+Y+T">Y. T. Wang</a>, <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+Z+X">Z. X. Wang</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhou%2C+T+R">T. R. Zhou</a>, <a href="/search/nucl-ex?searchtype=author&query=Peng%2C+D">D. Peng</a>, <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+S+T">S. T. Wang</a>, <a href="/search/nucl-ex?searchtype=author&query=Tang%2C+S+W">S. W. Tang</a>, <a href="/search/nucl-ex?searchtype=author&query=Yu%2C+Y+H">Y. H. Yu</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhang%2C+X+H">X. H. Zhang</a>, <a href="/search/nucl-ex?searchtype=author&query=Sun%2C+Y+Z">Y. Z. Sun</a>, <a href="/search/nucl-ex?searchtype=author&query=Jin%2C+S+Y">S. Y. Jin</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhang%2C+G+L">G. L. Zhang</a>, <a href="/search/nucl-ex?searchtype=author&query=Jiang%2C+X">X. Jiang</a>, <a href="/search/nucl-ex?searchtype=author&query=Li%2C+Z+Y">Z. Y. Li</a>, <a href="/search/nucl-ex?searchtype=author&query=Xu%2C+Y+F">Y. F. Xu</a>, <a href="/search/nucl-ex?searchtype=author&query=Lu%2C+F+H">F. H. Lu</a>, <a href="/search/nucl-ex?searchtype=author&query=Liu%2C+T+Q">T. Q. 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="2409.09367v1-abstract-short" style="display: inline;"> Precise predictions for nuclei near drip lines are crucial for experiments in new generation of rare isotope facilities. A multi-models investigation of the $Q_g$ systematics for fragments production cross sections, with $Q_g$ defined as the difference of mass excess (ME) between the projectile ($Z_{p}, A_{p}$) and the fragment ($Z_{f}, A_{f}$) nuclei $Q_{g}=ME(Z_{p}, A_{p})-ME(Z_{f}, A_{f})$, has… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.09367v1-abstract-full').style.display = 'inline'; document.getElementById('2409.09367v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2409.09367v1-abstract-full" style="display: none;"> Precise predictions for nuclei near drip lines are crucial for experiments in new generation of rare isotope facilities. A multi-models investigation of the $Q_g$ systematics for fragments production cross sections, with $Q_g$ defined as the difference of mass excess (ME) between the projectile ($Z_{p}, A_{p}$) and the fragment ($Z_{f}, A_{f}$) nuclei $Q_{g}=ME(Z_{p}, A_{p})-ME(Z_{f}, A_{f})$, has been performed to verify the model prediction abilities for light neutron-rich isotopes in measured $^{40}$Ar + $^9$Be projectile fragmentation reactions from 57$A$ MeV to 1$A$ GeV. The models used are the FRACS parametrizations and the newly developed Bayesian neural networks (BNN) model. %method The results show that FRACS, BNN, and $Q_g$ extrapolations are generally consistent, except for fragments near the nuclear mass of the projectile. Additionally, both measured data and model extrapolations provide evidence for a shell closure at $N=$ 16 in fluorine and neon, as well as the disappearance of the traditional magic number $N=$ 20 in neon, sodium and magnesium. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.09367v1-abstract-full').style.display = 'none'; document.getElementById('2409.09367v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2408.08410">arXiv:2408.08410</a> <span> [<a href="https://arxiv.org/pdf/2408.08410">pdf</a>, <a href="https://arxiv.org/format/2408.08410">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> </div> <p class="title is-5 mathjax"> Coulomb Excitation of $^{80}$Sr and the limits of the $N = Z = 40$ island of deformation </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Russell%2C+R">R. Russell</a>, <a href="/search/nucl-ex?searchtype=author&query=Heery%2C+J">J. Heery</a>, <a href="/search/nucl-ex?searchtype=author&query=Henderson%2C+J">J. Henderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Wadsworth%2C+R">R. Wadsworth</a>, <a href="/search/nucl-ex?searchtype=author&query=Kaneko%2C+K">K. Kaneko</a>, <a href="/search/nucl-ex?searchtype=author&query=Shimizu%2C+N">N. Shimizu</a>, <a href="/search/nucl-ex?searchtype=author&query=Mizusaki%2C+T">T. Mizusaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Sun%2C+Y">Y. Sun</a>, <a href="/search/nucl-ex?searchtype=author&query=Andreoiu%2C+C">C. Andreoiu</a>, <a href="/search/nucl-ex?searchtype=author&query=Annen%2C+D+W">D. W. Annen</a>, <a href="/search/nucl-ex?searchtype=author&query=Avaa%2C+A+A">A. A. Avaa</a>, <a href="/search/nucl-ex?searchtype=author&query=Ball%2C+G+C">G. C. Ball</a>, <a href="/search/nucl-ex?searchtype=author&query=Bildstein%2C+V">V. Bildstein</a>, <a href="/search/nucl-ex?searchtype=author&query=Buck%2C+S">S. Buck</a>, <a href="/search/nucl-ex?searchtype=author&query=Cousins%2C+C">C. Cousins</a>, <a href="/search/nucl-ex?searchtype=author&query=Garnsworthy%2C+A+B">A. B. Garnsworthy</a>, <a href="/search/nucl-ex?searchtype=author&query=Gillespie%2C+S+A">S. A. Gillespie</a>, <a href="/search/nucl-ex?searchtype=author&query=Greaves%2C+B">B. Greaves</a>, <a href="/search/nucl-ex?searchtype=author&query=Grimes%2C+A">A. Grimes</a>, <a href="/search/nucl-ex?searchtype=author&query=Hackman%2C+G">G. Hackman</a>, <a href="/search/nucl-ex?searchtype=author&query=Hughes%2C+R+O">R. O. Hughes</a>, <a href="/search/nucl-ex?searchtype=author&query=Jenkins%2C+D+G">D. G. Jenkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Kowalewski%2C+T+M">T. M. Kowalewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Martin%2C+M+S">M. S. Martin</a>, <a href="/search/nucl-ex?searchtype=author&query=M%C3%BCller-Gatermann%2C+C">C. M眉ller-Gatermann</a> , et al. (11 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2408.08410v1-abstract-short" style="display: inline;"> The region of $N\approx Z\approx 40$ has long been associated with strongly deformed nuclear configurations. The presence of this strong deformation was recently confirmed through lifetime measurements in $N\approx Z$ Sr and Zr nuclei. Theoretically, however, these nuclei present a challenge due to the vast valence space required to incorporate all deformation driving interactions. Recent state-of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2408.08410v1-abstract-full').style.display = 'inline'; document.getElementById('2408.08410v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2408.08410v1-abstract-full" style="display: none;"> The region of $N\approx Z\approx 40$ has long been associated with strongly deformed nuclear configurations. The presence of this strong deformation was recently confirmed through lifetime measurements in $N\approx Z$ Sr and Zr nuclei. Theoretically, however, these nuclei present a challenge due to the vast valence space required to incorporate all deformation driving interactions. Recent state-of-the-art predictions indicate a near axial prolate deformation for $N=Z$ and $N=Z+2$ nuclei between $N=Z=36$ and $N=Z=40$. In this work we investigate the shores of this island of deformation through a sub-barrier Coulomb excitation study of the $N=Z+4$ nucleus, \textsuperscript{80}Sr. Extracting a spectroscopic quadrupole moment of $Q_s(2^+_1) = 0.45^{+0.83}_{-0.88}$~eb, we find that \textsuperscript{80}Sr is inconsistent with significant axial prolate deformation. This indicates that the predicted region of strong prolate deformation around $N=Z=40$ is tightly constrained to the quartet of nuclei: \textsuperscript{76,78}Sr and \textsuperscript{78,80}Zr. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2408.08410v1-abstract-full').style.display = 'none'; document.getElementById('2408.08410v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Submitted to Physics Letters B</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2407.14697">arXiv:2407.14697</a> <span> [<a href="https://arxiv.org/pdf/2407.14697">pdf</a>, <a href="https://arxiv.org/ps/2407.14697">ps</a>, <a href="https://arxiv.org/format/2407.14697">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2024.139143">10.1016/j.physletb.2024.139143 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Single-proton removal reaction in the IQMD+GEMINI model benchmarked by elemental fragmentation cross sections of $^{29-33}\mathrm{Si}$ on carbon at $\sim$230~MeV/nucleon </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Li%2C+G">Guang-Shuai Li</a>, <a href="/search/nucl-ex?searchtype=author&query=Su%2C+J">Jun Su</a>, <a href="/search/nucl-ex?searchtype=author&query=Terashima%2C+S">Satoru Terashima</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhao%2C+J">Jian-Wei Zhao</a>, <a href="/search/nucl-ex?searchtype=author&query=Xiao%2C+E">Er-Xi Xiao</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhang%2C+J">Ji-Chao Zhang</a>, <a href="/search/nucl-ex?searchtype=author&query=He%2C+L">Liu-Chun He</a>, <a href="/search/nucl-ex?searchtype=author&query=Guo%2C+G">Ge Guo</a>, <a href="/search/nucl-ex?searchtype=author&query=Lin%2C+W">Wei-Ping Lin</a>, <a href="/search/nucl-ex?searchtype=author&query=Lin%2C+W">Wen-Jian Lin</a>, <a href="/search/nucl-ex?searchtype=author&query=Liu%2C+C">Chuan-Ye Liu</a>, <a href="/search/nucl-ex?searchtype=author&query=Lu%2C+C">Chen-Gui Lu</a>, <a href="/search/nucl-ex?searchtype=author&query=Mei%2C+B">Bo Mei</a>, <a href="/search/nucl-ex?searchtype=author&query=Pang%2C+D">Dan-Yang Pang</a>, <a href="/search/nucl-ex?searchtype=author&query=Sun%2C+Y">Ye-Lei Sun</a>, <a href="/search/nucl-ex?searchtype=author&query=Sun%2C+Z">Zhi-Yu Sun</a>, <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+M">Meng Wang</a>, <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+F">Feng Wang</a>, <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+J">Jing Wang</a>, <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+S">Shi-Tao Wang</a>, <a href="/search/nucl-ex?searchtype=author&query=Wei%2C+X">Xiu-Lin Wei</a>, <a href="/search/nucl-ex?searchtype=author&query=Xu%2C+X">Xiao-Dong Xu</a>, <a href="/search/nucl-ex?searchtype=author&query=Xu%2C+J">Jun-Yao Xu</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhu%2C+L">Li-Hua Zhu</a>, <a href="/search/nucl-ex?searchtype=author&query=Zheng%2C+Y">Yong Zheng</a> , et al. (2 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="2407.14697v1-abstract-short" style="display: inline;"> We report on the first measurement of the elemental fragmentation cross sections (EFCSs) of $^{29-33}\mathrm{Si}$ on a carbon target at $\sim$230~MeV/nucleon. The experimental data covering charge changes of $螖Z$ = 1-4 are reproduced well by the isospin-dependent quantum molecular dynamics (IQMD) coupled with the evaporation GEMINI (IQMD+GEMINI) model. We further explore the mechanisms underlying… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.14697v1-abstract-full').style.display = 'inline'; document.getElementById('2407.14697v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2407.14697v1-abstract-full" style="display: none;"> We report on the first measurement of the elemental fragmentation cross sections (EFCSs) of $^{29-33}\mathrm{Si}$ on a carbon target at $\sim$230~MeV/nucleon. The experimental data covering charge changes of $螖Z$ = 1-4 are reproduced well by the isospin-dependent quantum molecular dynamics (IQMD) coupled with the evaporation GEMINI (IQMD+GEMINI) model. We further explore the mechanisms underlying the single-proton removal reaction in this model framework. We conclude that the cross sections from direct proton knockout exhibit a overall weak dependence on the mass number of $\mathrm{Si}$ projectiles. The proton evaporation induced after the projectile excitation significantly affects the cross sections for neutron-deficient $\mathrm{Si}$ isotopes, while neutron evaporation plays a crucial role in the reactions of neutron-rich $\mathrm{Si}$ isotopes. It is presented that the relative magnitude of one-proton and one-neutron separation energies is an essential factor that influences evaporation processes. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.14697v1-abstract-full').style.display = 'none'; document.getElementById('2407.14697v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">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">7 pages, 4 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physics Letters B 859 (2024) 139143 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2407.10199">arXiv:2407.10199</a> <span> [<a href="https://arxiv.org/pdf/2407.10199">pdf</a>, <a href="https://arxiv.org/format/2407.10199">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> </div> <p class="title is-5 mathjax"> Charge radii of $^{11-16}$C, $^{13-17}$N and $^{15-18}$O determined from their charge-changing cross-sections and the mirror-difference charge radii </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Zhao%2C+J+W">J. W. Zhao</a>, <a href="/search/nucl-ex?searchtype=author&query=Sun%2C+B+-">B. -H. Sun</a>, <a href="/search/nucl-ex?searchtype=author&query=Tanihata%2C+I">I. Tanihata</a>, <a href="/search/nucl-ex?searchtype=author&query=Xu%2C+J+Y">J. Y. Xu</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhang%2C+K+Y">K. Y. Zhang</a>, <a href="/search/nucl-ex?searchtype=author&query=Prochazka%2C+A">A. Prochazka</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhu%2C+L+H">L. H. Zhu</a>, <a href="/search/nucl-ex?searchtype=author&query=Terashima%2C+S">S. Terashima</a>, <a href="/search/nucl-ex?searchtype=author&query=Meng%2C+J">J. Meng</a>, <a href="/search/nucl-ex?searchtype=author&query=He%2C+L+C">L. C. He</a>, <a href="/search/nucl-ex?searchtype=author&query=Liu%2C+C+Y">C. Y. Liu</a>, <a href="/search/nucl-ex?searchtype=author&query=Li%2C+G+S">G. S. Li</a>, <a href="/search/nucl-ex?searchtype=author&query=Lu%2C+C+G">C. G. Lu</a>, <a href="/search/nucl-ex?searchtype=author&query=Lin%2C+W+J">W. J. Lin</a>, <a href="/search/nucl-ex?searchtype=author&query=Lin%2C+W+P">W. P. Lin</a>, <a href="/search/nucl-ex?searchtype=author&query=Liu%2C+Z">Z. Liu</a>, <a href="/search/nucl-ex?searchtype=author&query=Ren%2C+P+P">P. P Ren</a>, <a href="/search/nucl-ex?searchtype=author&query=Sun%2C+Z+Y">Z. Y. Sun</a>, <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+F">F. Wang</a>, <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+J">J. Wang</a>, <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+M">M. Wang</a>, <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+S+T">S. T. Wang</a>, <a href="/search/nucl-ex?searchtype=author&query=Wei%2C+X+L">X. L. Wei</a>, <a href="/search/nucl-ex?searchtype=author&query=Xu%2C+X+D">X. D. Xu</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhang%2C+J+C">J. C. Zhang</a> , et al. (2 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="2407.10199v3-abstract-short" style="display: inline;"> Charge-changing cross-sections of $^{11-16}$C, $^{13-17}$N and $^{15-18}$O on a carbon target have been determined at energies around 300 MeV/nucleon. A nucleon separation energy-dependent correction factor has been introduced to the Glauber model calculation for extracting the nuclear charge radii from the experimental CCCSs. The charge radii of $^{11}$C, $^{13,16}$N and $^{15}$O thus were determ… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.10199v3-abstract-full').style.display = 'inline'; document.getElementById('2407.10199v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2407.10199v3-abstract-full" style="display: none;"> Charge-changing cross-sections of $^{11-16}$C, $^{13-17}$N and $^{15-18}$O on a carbon target have been determined at energies around 300 MeV/nucleon. A nucleon separation energy-dependent correction factor has been introduced to the Glauber model calculation for extracting the nuclear charge radii from the experimental CCCSs. The charge radii of $^{11}$C, $^{13,16}$N and $^{15}$O thus were determined for the first time. With the new radii, we studied the experimental mirror-difference charge radii ($螖R_{\text {ch}}^{\text {mirror}}$) of $^{11}$B-$^{11}$C, $^{13}$C-$^{13}$N, $^{15}$N-$^{15}$O, $^{17}$N-$^{17}$Ne pairs for the first time. We find that the $螖R_{\text {ch}}^{\text {mirror}}$ values of $^{13}$C-$^{13}$N and $^{15}$N-$^{15}$O pairs follow well the empirical relation to the isospin asymmetry predicted by the $ab$ $initio$ calculations, while $螖R_{\text {ch}}^{\text {mirror}}$ of $^{11}$B-$^{11}$C and $^{17}$N-$^{17}$Ne pairs deviate from such relation by more than two standard deviations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.10199v3-abstract-full').style.display = 'none'; document.getElementById('2407.10199v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 October, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 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">3 figures, submitted to Physics Letters B</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2407.04529">arXiv:2407.04529</a> <span> [<a href="https://arxiv.org/pdf/2407.04529">pdf</a>, <a href="https://arxiv.org/format/2407.04529">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.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&query=Li%2C+P+J">P. J. Li</a>, <a href="/search/nucl-ex?searchtype=author&query=Lee%2C+J">J. Lee</a>, <a href="/search/nucl-ex?searchtype=author&query=Doornenbal%2C+P">P. Doornenbal</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+S">S. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+S">S. Wang</a>, <a href="/search/nucl-ex?searchtype=author&query=Obertelli%2C+A">A. Obertelli</a>, <a href="/search/nucl-ex?searchtype=author&query=Chazono%2C+Y">Y. Chazono</a>, <a href="/search/nucl-ex?searchtype=author&query=Holt%2C+J+D">J. D. Holt</a>, <a href="/search/nucl-ex?searchtype=author&query=Hu%2C+B+S">B. S. Hu</a>, <a href="/search/nucl-ex?searchtype=author&query=Ogata%2C+K">K. Ogata</a>, <a href="/search/nucl-ex?searchtype=author&query=Utsuno%2C+Y">Y. Utsuno</a>, <a href="/search/nucl-ex?searchtype=author&query=Yoshida%2C+K">K. Yoshida</a>, <a href="/search/nucl-ex?searchtype=author&query=Achouri%2C+N+L">N. L. Achouri</a>, <a href="/search/nucl-ex?searchtype=author&query=Baba%2C+H">H. Baba</a>, <a href="/search/nucl-ex?searchtype=author&query=Browne%2C+F">F. Browne</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvet%2C+D">D. Calvet</a>, <a href="/search/nucl-ex?searchtype=author&query=Ch%C3%A2teau%2C+F">F. Ch芒teau</a>, <a href="/search/nucl-ex?searchtype=author&query=Chiga%2C+N">N. Chiga</a>, <a href="/search/nucl-ex?searchtype=author&query=Corsi%2C+A">A. Corsi</a>, <a href="/search/nucl-ex?searchtype=author&query=Cort%C3%A9s%2C+M+L">M. L. Cort茅s</a>, <a href="/search/nucl-ex?searchtype=author&query=Delbart%2C+A">A. Delbart</a>, <a href="/search/nucl-ex?searchtype=author&query=Gheller%2C+J">J-M. Gheller</a>, <a href="/search/nucl-ex?searchtype=author&query=Giganon%2C+A">A. Giganon</a>, <a href="/search/nucl-ex?searchtype=author&query=Gillibert%2C+A">A. Gillibert</a>, <a href="/search/nucl-ex?searchtype=author&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… <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';">▽ 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';">△ 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/2405.02847">arXiv:2405.02847</a> <span> [<a href="https://arxiv.org/pdf/2405.02847">pdf</a>, <a href="https://arxiv.org/format/2405.02847">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Gases">cond-mat.quant-gas</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> </div> <p class="title is-5 mathjax"> Observation of Universal Expansion Anisotropy from Cold Atoms to Hot Quark-Gluon Plasma </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Li%2C+K">Ke Li</a>, <a href="/search/nucl-ex?searchtype=author&query=Song%2C+H">Hong-Fang Song</a>, <a href="/search/nucl-ex?searchtype=author&query=Sun%2C+Y">Yu-Liang Sun</a>, <a href="/search/nucl-ex?searchtype=author&query=Xu%2C+H">Hao-Jie Xu</a>, <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+F">Fuqiang Wang</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2405.02847v3-abstract-short" style="display: inline;"> Azimuthal anisotropy has been ubiquitously observed in high-energy proton-proton, proton-nucleus, and nucleus-nucleus (heavy-ion) collisions, shaking the early belief that those anisotropies must stem from utterly strong interactions. This work reports a study of anisotropic expansion of cold $^{6}$Li Fermi gases, initially trapped in an anisotropic potential, as a function of the interaction stre… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.02847v3-abstract-full').style.display = 'inline'; document.getElementById('2405.02847v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2405.02847v3-abstract-full" style="display: none;"> Azimuthal anisotropy has been ubiquitously observed in high-energy proton-proton, proton-nucleus, and nucleus-nucleus (heavy-ion) collisions, shaking the early belief that those anisotropies must stem from utterly strong interactions. This work reports a study of anisotropic expansion of cold $^{6}$Li Fermi gases, initially trapped in an anisotropic potential, as a function of the interaction strength that can be readily tuned by an external magnetic field. It is found that the expansion anisotropy builds up quickly at small interaction strength, without the need of utterly strong interactions. A universal behavior of the expansion anisotropy is quantitatively observed between cold-atom and heavy-ion systems, despite their vast differences in physics. This universality will potentially unify a variety of disciplines in nature, from the weakly interacting dilute systems of gases to the strongly interacting quark-gluon plasma of the early universe. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.02847v3-abstract-full').style.display = 'none'; document.getElementById('2405.02847v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">11 pages, 11 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/2404.08784">arXiv:2404.08784</a> <span> [<a href="https://arxiv.org/pdf/2404.08784">pdf</a>, <a href="https://arxiv.org/format/2404.08784">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.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&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhosale%2C+S+R">S. R. Bhosale</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Brandenburg%2C+J+D">J. D. Brandenburg</a>, <a href="/search/nucl-ex?searchtype=author&query=Broodo%2C+C">C. Broodo</a>, <a href="/search/nucl-ex?searchtype=author&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… <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';">▽ 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';">△ 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/2403.03566">arXiv:2403.03566</a> <span> [<a href="https://arxiv.org/pdf/2403.03566">pdf</a>, <a href="https://arxiv.org/ps/2403.03566">ps</a>, <a href="https://arxiv.org/format/2403.03566">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> </div> <p class="title is-5 mathjax"> Neutron radius determination of 133Cs and its impact on the interpretation of CEvNS-CsI measurement </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Huang%2C+Y">Y. Huang</a>, <a href="/search/nucl-ex?searchtype=author&query=Xia%2C+S+Y">S. Y. Xia</a>, <a href="/search/nucl-ex?searchtype=author&query=Li%2C+Y+F">Y. F. Li</a>, <a href="/search/nucl-ex?searchtype=author&query=Tu%2C+X+L">X. L. Tu</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhang%2C+J+T">J. T. Zhang</a>, <a href="/search/nucl-ex?searchtype=author&query=Shao%2C+C+J">C. J. Shao</a>, <a href="/search/nucl-ex?searchtype=author&query=Yue%2C+K">K. Yue</a>, <a href="/search/nucl-ex?searchtype=author&query=Ma%2C+P">P. Ma</a>, <a href="/search/nucl-ex?searchtype=author&query=Niu%2C+Y+F">Y. F. Niu</a>, <a href="/search/nucl-ex?searchtype=author&query=Li%2C+Z+P">Z. P. Li</a>, <a href="/search/nucl-ex?searchtype=author&query=Kuang%2C+Y">Y. Kuang</a>, <a href="/search/nucl-ex?searchtype=author&query=Liu%2C+X+Q">X. Q. Liu</a>, <a href="/search/nucl-ex?searchtype=author&query=Han%2C+J+F">J. F. Han</a>, <a href="/search/nucl-ex?searchtype=author&query=Egelhof%2C+P">P. Egelhof</a>, <a href="/search/nucl-ex?searchtype=author&query=Litvinov%2C+Y+A">Yu. A. Litvinov</a>, <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+M">M. Wang</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhang%2C+Y+H">Y. H. Zhang</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhou%2C+X+H">X. H. Zhou</a>, <a href="/search/nucl-ex?searchtype=author&query=Sun%2C+Z+Y">Z. Y. Sun</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="2403.03566v2-abstract-short" style="display: inline;"> Proton-$^{133}$Cs elastic scattering at low momentum transfer is performed using an in-ring reaction technique at the Cooler Storage Ring at the Heavy Ion Research Facility in Lanzhou. Recoil protons from the elastic collisions between the internal H$_2$-gas target and the circulating $^{133}$Cs ions at 199.4 MeV/u are detected by a silicon-strip detector. The matter radius of $^{133}$Cs is deduce… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2403.03566v2-abstract-full').style.display = 'inline'; document.getElementById('2403.03566v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2403.03566v2-abstract-full" style="display: none;"> Proton-$^{133}$Cs elastic scattering at low momentum transfer is performed using an in-ring reaction technique at the Cooler Storage Ring at the Heavy Ion Research Facility in Lanzhou. Recoil protons from the elastic collisions between the internal H$_2$-gas target and the circulating $^{133}$Cs ions at 199.4 MeV/u are detected by a silicon-strip detector. The matter radius of $^{133}$Cs is deduced by describing the measured differential cross sections using the Glauber model. Employing the adopted proton distribution radius, a point-neutron radius of 4.86(21) fm for $^{133}$Cs is obtained. With the newly determined neutron radius, the weak mixing angle sin$^2 胃_W$ is independently extracted to be 0.227(28) by fitting the coherent elastic neutrino-nucleus scattering data. Our work limits the sin$^2 胃_W$ value in a range smaller than the ones proposed by the previous independent approaches, and would play an important role in searching new physics via the high precision CE$谓$NS-CsI cross section data in the near future. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2403.03566v2-abstract-full').style.display = 'none'; document.getElementById('2403.03566v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 April, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 6 March, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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> [<a href="https://arxiv.org/pdf/2402.14975">pdf</a>, <a href="https://arxiv.org/format/2402.14975">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.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&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/nucl-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/nucl-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/nucl-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/nucl-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/nucl-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/nucl-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/nucl-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/nucl-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/nucl-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/nucl-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/nucl-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/nucl-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/nucl-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/nucl-ex?searchtype=author&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… <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';">▽ 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';">△ 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/2402.13256">arXiv:2402.13256</a> <span> [<a href="https://arxiv.org/pdf/2402.13256">pdf</a>, <a href="https://arxiv.org/format/2402.13256">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/2632-2153/ad3ee3">10.1088/2632-2153/ad3ee3 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Deep Learning Based Event Reconstruction for Cyclotron Radiation Emission Spectroscopy </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Esfahani%2C+A+A">A. Ashtari Esfahani</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6ser%2C+S">S. B枚ser</a>, <a href="/search/nucl-ex?searchtype=author&query=Buzinsky%2C+N">N. Buzinsky</a>, <a href="/search/nucl-ex?searchtype=author&query=Carmona-Benitez%2C+M+C">M. C. Carmona-Benitez</a>, <a href="/search/nucl-ex?searchtype=author&query=Cervantes%2C+R">R. Cervantes</a>, <a href="/search/nucl-ex?searchtype=author&query=Claessens%2C+C">C. Claessens</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Viveiros%2C+L">L. de Viveiros</a>, <a href="/search/nucl-ex?searchtype=author&query=Fertl%2C+M">M. Fertl</a>, <a href="/search/nucl-ex?searchtype=author&query=Formaggio%2C+J+A">J. A. Formaggio</a>, <a href="/search/nucl-ex?searchtype=author&query=Gaison%2C+J+K">J. K. Gaison</a>, <a href="/search/nucl-ex?searchtype=author&query=Gladstone%2C+L">L. Gladstone</a>, <a href="/search/nucl-ex?searchtype=author&query=Grando%2C+M">M. Grando</a>, <a href="/search/nucl-ex?searchtype=author&query=Guigue%2C+M">M. Guigue</a>, <a href="/search/nucl-ex?searchtype=author&query=Hartse%2C+J">J. Hartse</a>, <a href="/search/nucl-ex?searchtype=author&query=Heeger%2C+K+M">K. M. Heeger</a>, <a href="/search/nucl-ex?searchtype=author&query=Huyan%2C+X">X. Huyan</a>, <a href="/search/nucl-ex?searchtype=author&query=Jones%2C+A+M">A. M. Jones</a>, <a href="/search/nucl-ex?searchtype=author&query=Kazkaz%2C+K">K. Kazkaz</a>, <a href="/search/nucl-ex?searchtype=author&query=Li%2C+M">M. Li</a>, <a href="/search/nucl-ex?searchtype=author&query=Lindman%2C+A">A. Lindman</a>, <a href="/search/nucl-ex?searchtype=author&query=Marsteller%2C+A">A. Marsteller</a>, <a href="/search/nucl-ex?searchtype=author&query=Matth%C3%A9%2C+C">C. Matth茅</a>, <a href="/search/nucl-ex?searchtype=author&query=Mohiuddin%2C+R">R. Mohiuddin</a>, <a href="/search/nucl-ex?searchtype=author&query=Monreal%2C+B">B. Monreal</a>, <a href="/search/nucl-ex?searchtype=author&query=Morrison%2C+E+C">E. C. Morrison</a> , et al. (26 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="2402.13256v1-abstract-short" style="display: inline;"> The objective of the Cyclotron Radiation Emission Spectroscopy (CRES) technology is to build precise particle energy spectra. This is achieved by identifying the start frequencies of charged particle trajectories which, when exposed to an external magnetic field, leave semi-linear profiles (called tracks) in the time-frequency plane. Due to the need for excellent instrumental energy resolution in… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.13256v1-abstract-full').style.display = 'inline'; document.getElementById('2402.13256v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2402.13256v1-abstract-full" style="display: none;"> The objective of the Cyclotron Radiation Emission Spectroscopy (CRES) technology is to build precise particle energy spectra. This is achieved by identifying the start frequencies of charged particle trajectories which, when exposed to an external magnetic field, leave semi-linear profiles (called tracks) in the time-frequency plane. Due to the need for excellent instrumental energy resolution in application, highly efficient and accurate track reconstruction methods are desired. Deep learning convolutional neural networks (CNNs) - particularly suited to deal with information-sparse data and which offer precise foreground localization - may be utilized to extract track properties from measured CRES signals (called events) with relative computational ease. In this work, we develop a novel machine learning based model which operates a CNN and a support vector machine in tandem to perform this reconstruction. A primary application of our method is shown on simulated CRES signals which mimic those of the Project 8 experiment - a novel effort to extract the unknown absolute neutrino mass value from a precise measurement of tritium $尾^-$-decay energy spectrum. When compared to a point-clustering based technique used as a baseline, we show a relative gain of 24.1% in event reconstruction efficiency and comparable performance in accuracy of track parameter reconstruction. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.13256v1-abstract-full').style.display = 'none'; document.getElementById('2402.13256v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 5 January, 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">submitted to Machine Learning: Science and Technology</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Machine Learning: Science and Technology, 5 (2024) 025026 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2401.16817">arXiv:2401.16817</a> <span> [<a href="https://arxiv.org/pdf/2401.16817">pdf</a>, <a href="https://arxiv.org/ps/2401.16817">ps</a>, <a href="https://arxiv.org/format/2401.16817">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> </div> <p class="title is-5 mathjax"> Mass, spectroscopy and two-neutron decay of $^{16}$Be </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Monteagudo%2C+B">B. Monteagudo</a>, <a href="/search/nucl-ex?searchtype=author&query=Marqu%C3%A9s%2C+F+M">F. M. Marqu茅s</a>, <a href="/search/nucl-ex?searchtype=author&query=Gibelin%2C+J">J. Gibelin</a>, <a href="/search/nucl-ex?searchtype=author&query=Orr%2C+N+A">N. A. Orr</a>, <a href="/search/nucl-ex?searchtype=author&query=Corsi%2C+A">A. Corsi</a>, <a href="/search/nucl-ex?searchtype=author&query=Kubota%2C+Y">Y. Kubota</a>, <a href="/search/nucl-ex?searchtype=author&query=Casal%2C+J">J. Casal</a>, <a href="/search/nucl-ex?searchtype=author&query=G%C3%B3mez-Camacho%2C+J">J. G贸mez-Camacho</a>, <a href="/search/nucl-ex?searchtype=author&query=Authelet%2C+G">G. Authelet</a>, <a href="/search/nucl-ex?searchtype=author&query=Baba%2C+H">H. Baba</a>, <a href="/search/nucl-ex?searchtype=author&query=Caesar%2C+C">C. Caesar</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvet%2C+D">D. Calvet</a>, <a href="/search/nucl-ex?searchtype=author&query=Delbart%2C+A">A. Delbart</a>, <a href="/search/nucl-ex?searchtype=author&query=Dozono%2C+M">M. Dozono</a>, <a href="/search/nucl-ex?searchtype=author&query=Feng%2C+J">J. Feng</a>, <a href="/search/nucl-ex?searchtype=author&query=Flavigny%2C+F">F. Flavigny</a>, <a href="/search/nucl-ex?searchtype=author&query=Gheller%2C+J+-">J. -M. Gheller</a>, <a href="/search/nucl-ex?searchtype=author&query=Giganon%2C+A">A. Giganon</a>, <a href="/search/nucl-ex?searchtype=author&query=Gillibert%2C+A">A. Gillibert</a>, <a href="/search/nucl-ex?searchtype=author&query=Hasegawa%2C+K">K. Hasegawa</a>, <a href="/search/nucl-ex?searchtype=author&query=Isobe%2C+T">T. Isobe</a>, <a href="/search/nucl-ex?searchtype=author&query=Kanaya%2C+Y">Y. Kanaya</a>, <a href="/search/nucl-ex?searchtype=author&query=Kawakami%2C+S">S. Kawakami</a>, <a href="/search/nucl-ex?searchtype=author&query=Kim%2C+D">D. Kim</a>, <a href="/search/nucl-ex?searchtype=author&query=Kiyokawa%2C+Y">Y. Kiyokawa</a> , et al. (43 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="2401.16817v1-abstract-short" style="display: inline;"> The structure and decay of the most neutron-rich beryllium isotope, $^{16}$Be, has been investigated following proton knockout from a high-energy $^{17}$B beam. Two relatively narrow resonances were observed for the first time, with energies of $0.84(3)$ and $2.15(5)$ MeV above the two-neutron decay threshold and widths of $0.32(8)$ and $0.95(15)$ MeV respectively. These were assigned to be the gr… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.16817v1-abstract-full').style.display = 'inline'; document.getElementById('2401.16817v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2401.16817v1-abstract-full" style="display: none;"> The structure and decay of the most neutron-rich beryllium isotope, $^{16}$Be, has been investigated following proton knockout from a high-energy $^{17}$B beam. Two relatively narrow resonances were observed for the first time, with energies of $0.84(3)$ and $2.15(5)$ MeV above the two-neutron decay threshold and widths of $0.32(8)$ and $0.95(15)$ MeV respectively. These were assigned to be the ground ($J^蟺=0^+$) and first excited ($2^+$) state, with $E_x=1.31(6)$ MeV. The mass excess of $^{16}$Be was thus deduced to be $56.93(13)$ MeV, some $0.5$ MeV more bound than the only previous measurement. Both states were observed to decay by direct two-neutron emission. Calculations incorporating the evolution of the wavefunction during the decay as a genuine three-body process reproduced the principal characteristics of the neutron-neutron energy spectra for both levels, indicating that the ground state exhibits a strong spatially compact dineutron component, while the 2$^+$ level presents a far more diffuse neutron-neutron distribution. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.16817v1-abstract-full').style.display = 'none'; document.getElementById('2401.16817v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 30 January, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2024. </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> [<a href="https://arxiv.org/pdf/2401.11342">pdf</a>, <a href="https://arxiv.org/format/2401.11342">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/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&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/nucl-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/nucl-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/nucl-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/nucl-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/nucl-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/nucl-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/nucl-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/nucl-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/nucl-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/nucl-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/nucl-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/nucl-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/nucl-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/nucl-ex?searchtype=author&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… <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';">▽ 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';">△ 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> [<a href="https://arxiv.org/pdf/2401.09012">pdf</a>, <a href="https://arxiv.org/format/2401.09012">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> 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&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/nucl-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/nucl-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&query=Afedulidis%2C+O">O. Afedulidis</a>, <a href="/search/nucl-ex?searchtype=author&query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/nucl-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/nucl-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/nucl-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/nucl-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/nucl-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/nucl-ex?searchtype=author&query=Bao%2C+H+-">H. -R. Bao</a>, <a href="/search/nucl-ex?searchtype=author&query=Batozskaya%2C+V">V. Batozskaya</a>, <a href="/search/nucl-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/nucl-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bianco%2C+E">E. Bianco</a>, <a href="/search/nucl-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/nucl-ex?searchtype=author&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… <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';">▽ 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';">△ 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> [<a href="https://arxiv.org/pdf/2312.07464">pdf</a>, <a href="https://arxiv.org/format/2312.07464">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> 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&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhosale%2C+S+R">S. R. Bhosale</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Brandenburg%2C+J+D">J. D. Brandenburg</a>, <a href="/search/nucl-ex?searchtype=author&query=Broodo%2C+C">C. Broodo</a>, <a href="/search/nucl-ex?searchtype=author&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 $|畏| <$ 0.9 and a pair gap of $|螖畏|>1.0$. The primary focus is on analysis methods, particularly the sub… <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';">▽ 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 $|畏| <$ 0.9 and a pair gap of $|螖畏|>1.0$. 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';">△ 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> [<a href="https://arxiv.org/pdf/2311.13129">pdf</a>, <a href="https://arxiv.org/format/2311.13129">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.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&query=Li%2C+P+J">P. J. Li</a>, <a href="/search/nucl-ex?searchtype=author&query=Beaumel%2C+D">D. Beaumel</a>, <a href="/search/nucl-ex?searchtype=author&query=Lee%2C+J">J. Lee</a>, <a href="/search/nucl-ex?searchtype=author&query=Assi%C3%A9%2C+M">M. Assi茅</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+S">S. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Franchoo%2C+S">S. Franchoo</a>, <a href="/search/nucl-ex?searchtype=author&query=Gibelin%2C+J">J. Gibelin</a>, <a href="/search/nucl-ex?searchtype=author&query=Hammache%2C+F">F. Hammache</a>, <a href="/search/nucl-ex?searchtype=author&query=Harada%2C+T">T. Harada</a>, <a href="/search/nucl-ex?searchtype=author&query=Kanada-En%27yo%2C+Y">Y. Kanada-En'yo</a>, <a href="/search/nucl-ex?searchtype=author&query=Kubota%2C+Y">Y. Kubota</a>, <a href="/search/nucl-ex?searchtype=author&query=Leblond%2C+S">S. Leblond</a>, <a href="/search/nucl-ex?searchtype=author&query=Liang%2C+P+F">P. F. Liang</a>, <a href="/search/nucl-ex?searchtype=author&query=Lokotko%2C+T">T. Lokotko</a>, <a href="/search/nucl-ex?searchtype=author&query=Lyu%2C+M">M. Lyu</a>, <a href="/search/nucl-ex?searchtype=author&query=Marqu%C3%A9s%2C+F+M">F. M. Marqu茅s</a>, <a href="/search/nucl-ex?searchtype=author&query=Matsuda%2C+Y">Y. Matsuda</a>, <a href="/search/nucl-ex?searchtype=author&query=Ogata%2C+K">K. Ogata</a>, <a href="/search/nucl-ex?searchtype=author&query=Otsu%2C+H">H. Otsu</a>, <a href="/search/nucl-ex?searchtype=author&query=Rindel%2C+E">E. Rindel</a>, <a href="/search/nucl-ex?searchtype=author&query=Stuhl%2C+L">L. Stuhl</a>, <a href="/search/nucl-ex?searchtype=author&query=Suzuki%2C+D">D. Suzuki</a>, <a href="/search/nucl-ex?searchtype=author&query=Togano%2C+Y">Y. Togano</a>, <a href="/search/nucl-ex?searchtype=author&query=Tomai%2C+T">T. Tomai</a>, <a href="/search/nucl-ex?searchtype=author&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… <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';">▽ 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';">△ 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> [<a href="https://arxiv.org/pdf/2311.11020">pdf</a>, <a href="https://arxiv.org/format/2311.11020">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/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&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhosale%2C+S+R">S. R. Bhosale</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Brandenburg%2C+J+D">J. D. Brandenburg</a>, <a href="/search/nucl-ex?searchtype=author&query=Broodo%2C+C">C. Broodo</a>, <a href="/search/nucl-ex?searchtype=author&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… <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';">▽ 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';">△ 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> [<a href="https://arxiv.org/pdf/2311.09985">pdf</a>, <a href="https://arxiv.org/format/2311.09985">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.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&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/nucl-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/nucl-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/nucl-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/nucl-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/nucl-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/nucl-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/nucl-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/nucl-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/nucl-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/nucl-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/nucl-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/nucl-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/nucl-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/nucl-ex?searchtype=author&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… <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';">▽ 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';">△ 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> [<a href="https://arxiv.org/pdf/2311.08490">pdf</a>, <a href="https://arxiv.org/format/2311.08490">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.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&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/nucl-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/nucl-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/nucl-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/nucl-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/nucl-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/nucl-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/nucl-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/nucl-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/nucl-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/nucl-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/nucl-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/nucl-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/nucl-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/nucl-ex?searchtype=author&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 ($1.5<y^*<4.0$) and backward ($-5.0<y^*<-2.5$) 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… <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';">▽ 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 ($1.5<y^*<4.0$) and backward ($-5.0<y^*<-2.5$) 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';">△ 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> [<a href="https://arxiv.org/pdf/2311.01562">pdf</a>, <a href="https://arxiv.org/format/2311.01562">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.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&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/nucl-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/nucl-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/nucl-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/nucl-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/nucl-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/nucl-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/nucl-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/nucl-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/nucl-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/nucl-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/nucl-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/nucl-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/nucl-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/nucl-ex?searchtype=author&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 ($1.5<y^*<4.0$) and backward ($-5.0<y^*<-2.5$) rapidity regions, where $y^*$ is the $J/蠄$ rapidity in the nucleon-nucleon center-of-mass system. Forward and backward rapidity samples co… <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';">▽ 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 ($1.5<y^*<4.0$) and backward ($-5.0<y^*<-2.5$) 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$<p_{T, J/蠄}<20$ 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 $1<p_{T, J/蠄}<3$ 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';">△ 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> [<a href="https://arxiv.org/pdf/2311.00934">pdf</a>, <a href="https://arxiv.org/format/2311.00934">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/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&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhosale%2C+S+R">S. R. Bhosale</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Brandenburg%2C+J+D">J. D. Brandenburg</a>, <a href="/search/nucl-ex?searchtype=author&query=Broodo%2C+C">C. Broodo</a>, <a href="/search/nucl-ex?searchtype=author&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… <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';">▽ 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';">△ 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/2310.17444">arXiv:2310.17444</a> <span> [<a href="https://arxiv.org/pdf/2310.17444">pdf</a>, <a href="https://arxiv.org/format/2310.17444">other</a>] </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="High Energy Astrophysical Phenomena">astro-ph.HE</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> <p class="title is-5 mathjax"> Baryon density dependence of viscosities of the quark-gluon plasma at hadronization </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Yang%2C+Z">Zhidong Yang</a>, <a href="/search/nucl-ex?searchtype=author&query=Sun%2C+Y">Yifeng Sun</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+L">Lie-Wen Chen</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2310.17444v2-abstract-short" style="display: inline;"> The $蠁$ meson and $惟$ baryon provide unique probes of the properties of the quark-gluon plasma (QGP) at hadronization in relativistic heavy-ion collisions. Using the quark recombination model with the quark phase-space information parameterized in a viscous blastwave, we perform Bayesian inference of the shear and bulk viscosities of the QGP at hadronization with a temperature of $T\sim 160$ MeV b… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.17444v2-abstract-full').style.display = 'inline'; document.getElementById('2310.17444v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2310.17444v2-abstract-full" style="display: none;"> The $蠁$ meson and $惟$ baryon provide unique probes of the properties of the quark-gluon plasma (QGP) at hadronization in relativistic heavy-ion collisions. Using the quark recombination model with the quark phase-space information parameterized in a viscous blastwave, we perform Bayesian inference of the shear and bulk viscosities of the QGP at hadronization with a temperature of $T\sim 160$ MeV by analyzing the $蠁$ and $惟$ data in Au+Au collisions at $\sqrt{s_{\rm NN}}=$ 19.6-200 GeV and Pb+Pb collisions at $\sqrt{s_{\rm NN}}=$ 2.76 TeV, corresponding to a baryon chemical potential variation from $渭_B\approx 0$ (at $\sqrt{s_{\rm NN}}= 2.76$ TeV) to $200$ MeV (at $\sqrt{s_{\rm NN}}= 19.6$ GeV). We find that the shear viscosity to enthalpy ratio $畏T/(蔚+P)$ of the QGP at hadronization decreases as $渭_B$ increases, with $畏T/(蔚+P)\approx 0.18$ at $渭_B=0$ and $畏T/(蔚+P)\approx 0.08$ at $渭_B=200$ MeV, while the corresponding specific bulk viscosity is essentially constant with $味T/(蔚+ P)=0.02\sim 0.04$ for $渭_B<200$ MeV. Our results suggest that the QGP at hadronization ($T\sim 160$ MeV) with finite baryon density is more close to perfect fluid than that with zero baryon density. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.17444v2-abstract-full').style.display = 'none'; document.getElementById('2310.17444v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 April, 2024; <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">9 pages, 3 figures, 2 tables. Some details and discussions added. Accepted version to appear in PRC</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> [<a href="https://arxiv.org/pdf/2310.17326">pdf</a>, <a href="https://arxiv.org/format/2310.17326">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.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 $畏'$ mesons in $pp$ and $p$Pb collisions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/nucl-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/nucl-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/nucl-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/nucl-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/nucl-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/nucl-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/nucl-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/nucl-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/nucl-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/nucl-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/nucl-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/nucl-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/nucl-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/nucl-ex?searchtype=author&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 $畏'$ 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… <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';">▽ 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 $畏'$ 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 $2.5<y_{\rm c.m.}<3.5$ (forward rapidity) and $-4.0<y_{\rm c.m.}<-3.0$ (backward rapidity) defined relative to the proton beam direction. The $畏$ and $畏'$ production cross sections are measured differentially as a function of transverse momentum for $1.5<p_{\rm T}<10~{\rm GeV}$ and $3<p_{\rm T}<10~{\rm GeV}$, respectively. The differential cross sections are used to calculate nuclear modification factors. The nuclear modification factors for $畏$ and $畏'$ 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 $畏'$ 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';">△ 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/2310.13936">arXiv:2310.13936</a> <span> [<a href="https://arxiv.org/pdf/2310.13936">pdf</a>, <a href="https://arxiv.org/format/2310.13936">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2023.138269">10.1016/j.physletb.2023.138269 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Isospin-dependence of the charge-changing cross-section shaped by the charged-particle evaporation process </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Zhao%2C+J+W">J. W. Zhao</a>, <a href="/search/nucl-ex?searchtype=author&query=Sun%2C+B+-">B. -H. Sun</a>, <a href="/search/nucl-ex?searchtype=author&query=Tanihata%2C+I">I. Tanihata</a>, <a href="/search/nucl-ex?searchtype=author&query=Terashima%2C+S">S. Terashima</a>, <a href="/search/nucl-ex?searchtype=author&query=Prochazka%2C+A">A. Prochazka</a>, <a href="/search/nucl-ex?searchtype=author&query=Xu%2C+J+Y">J. Y. Xu</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhu%2C+L+H">L. H. Zhu</a>, <a href="/search/nucl-ex?searchtype=author&query=Meng%2C+J">J. Meng</a>, <a href="/search/nucl-ex?searchtype=author&query=Su%2C+J">J. Su</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhang%2C+K+Y">K. Y. Zhang</a>, <a href="/search/nucl-ex?searchtype=author&query=Geng%2C+L+S">L. S. Geng</a>, <a href="/search/nucl-ex?searchtype=author&query=He%2C+L+C">L. C. He</a>, <a href="/search/nucl-ex?searchtype=author&query=Liu%2C+C+Y">C. Y. Liu</a>, <a href="/search/nucl-ex?searchtype=author&query=Li%2C+G+S">G. S. Li</a>, <a href="/search/nucl-ex?searchtype=author&query=Lu%2C+C+G">C. G. Lu</a>, <a href="/search/nucl-ex?searchtype=author&query=Lin%2C+W+J">W. J. Lin</a>, <a href="/search/nucl-ex?searchtype=author&query=Lin%2C+W+P">W. P. Lin</a>, <a href="/search/nucl-ex?searchtype=author&query=Liu%2C+Z">Z. Liu</a>, <a href="/search/nucl-ex?searchtype=author&query=Ren%2C+P+P">P. P Ren</a>, <a href="/search/nucl-ex?searchtype=author&query=Sun%2C+Z+Y">Z. Y. Sun</a>, <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+F">F. Wang</a>, <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+J">J. Wang</a>, <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+M">M. Wang</a>, <a href="/search/nucl-ex?searchtype=author&query=Wang%2C+S+T">S. T. Wang</a>, <a href="/search/nucl-ex?searchtype=author&query=Wei%2C+X+L">X. L. Wei</a> , et al. (4 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="2310.13936v1-abstract-short" style="display: inline;"> We present the charge-changing cross sections (CCCS) of $^{11-15}$C, $^{13-17}$N, and $^{15,17-18}$O at around 300 MeV/nucleon on a carbon target, which extends to $p$-shell isotopes with $N < Z$ for the first time. The Glauber model, which considers only the proton distribution of projectile nuclei, underestimates the cross sections by more than 10\%. We show that this discrepancy can be resolved… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.13936v1-abstract-full').style.display = 'inline'; document.getElementById('2310.13936v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2310.13936v1-abstract-full" style="display: none;"> We present the charge-changing cross sections (CCCS) of $^{11-15}$C, $^{13-17}$N, and $^{15,17-18}$O at around 300 MeV/nucleon on a carbon target, which extends to $p$-shell isotopes with $N < Z$ for the first time. The Glauber model, which considers only the proton distribution of projectile nuclei, underestimates the cross sections by more than 10\%. We show that this discrepancy can be resolved by considering the contribution from the charged-particle evaporation process (CPEP) following projectile neutron removal. Using nucleon densities from the deformed relativistic Hartree-Bogoliubov theory in continuum, we investigate the isospin-dependent CPEP contribution to the CCCS for a wide range of neutron-to-proton separation energy asymmetry. Our calculations, which include the CPEP contribution, agree well with existing systematic data and reveal an ``evaporation peak" at the isospin symmetric region where the neutron-to-proton separation energy is close to zero. These results suggest that analysis beyond the Glauber model is crucial for accurately determining nuclear charge radii from CCCSs. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.13936v1-abstract-full').style.display = 'none'; document.getElementById('2310.13936v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 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">5 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 847 (2023) 138269 </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> [<a href="https://arxiv.org/pdf/2310.13096">pdf</a>, <a href="https://arxiv.org/format/2310.13096">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/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&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Aitbaev%2C+A">A. Aitbaev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alpatov%2C+E">E. Alpatov</a>, <a href="/search/nucl-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhosale%2C+S+R">S. R. Bhosale</a>, <a href="/search/nucl-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a>, <a href="/search/nucl-ex?searchtype=author&query=Brandenburg%2C+J+D">J. D. Brandenburg</a> , et al. (333 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="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 (… <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';">▽ 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';">△ 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> [<a href="https://arxiv.org/pdf/2310.12674">pdf</a>, <a href="https://arxiv.org/format/2310.12674">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1038/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&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhosale%2C+S+R">S. R. Bhosale</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Brandenburg%2C+J+D">J. D. Brandenburg</a>, <a href="/search/nucl-ex?searchtype=author&query=Broodo%2C+C">C. Broodo</a>, <a href="/search/nucl-ex?searchtype=author&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… <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';">▽ 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';">△ 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/2310.02112">arXiv:2310.02112</a> <span> [<a href="https://arxiv.org/pdf/2310.02112">pdf</a>, <a href="https://arxiv.org/format/2310.02112">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/19/05/P05073">10.1088/1748-0221/19/05/P05073 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Real-time Signal Detection for Cyclotron Radiation Emission Spectroscopy Measurements using Antenna Arrays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Esfahani%2C+A+A">A. Ashtari Esfahani</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6ser%2C+S">S. B枚ser</a>, <a href="/search/nucl-ex?searchtype=author&query=Buzinsky%2C+N">N. Buzinsky</a>, <a href="/search/nucl-ex?searchtype=author&query=Carmona-Benitez%2C+M+C">M. C. Carmona-Benitez</a>, <a href="/search/nucl-ex?searchtype=author&query=Claessens%2C+C">C. Claessens</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Viveiros%2C+L">L. de Viveiros</a>, <a href="/search/nucl-ex?searchtype=author&query=Fertl%2C+M">M. Fertl</a>, <a href="/search/nucl-ex?searchtype=author&query=Formaggio%2C+J+A">J. A. Formaggio</a>, <a href="/search/nucl-ex?searchtype=author&query=Foust%2C+B+T">B. T. Foust</a>, <a href="/search/nucl-ex?searchtype=author&query=Gaison%2C+J+K">J. K. Gaison</a>, <a href="/search/nucl-ex?searchtype=author&query=Grando%2C+M">M. Grando</a>, <a href="/search/nucl-ex?searchtype=author&query=Hartse%2C+J">J. Hartse</a>, <a href="/search/nucl-ex?searchtype=author&query=Heeger%2C+K+M">K. M. Heeger</a>, <a href="/search/nucl-ex?searchtype=author&query=Huyan%2C+X">X. Huyan</a>, <a href="/search/nucl-ex?searchtype=author&query=Jones%2C+A+M">A. M. Jones</a>, <a href="/search/nucl-ex?searchtype=author&query=Jones%2C+B+J+P">B. J. P. Jones</a>, <a href="/search/nucl-ex?searchtype=author&query=Kazkaz%2C+K">K. Kazkaz</a>, <a href="/search/nucl-ex?searchtype=author&query=LaRoque%2C+B+H">B. H. LaRoque</a>, <a href="/search/nucl-ex?searchtype=author&query=Li%2C+M">M. Li</a>, <a href="/search/nucl-ex?searchtype=author&query=Lindman%2C+A">A. Lindman</a>, <a href="/search/nucl-ex?searchtype=author&query=Marsteller%2C+A">A. Marsteller</a>, <a href="/search/nucl-ex?searchtype=author&query=Matth%C3%A9%2C+C">C. Matth茅</a>, <a href="/search/nucl-ex?searchtype=author&query=Mohiuddin%2C+R">R. Mohiuddin</a>, <a href="/search/nucl-ex?searchtype=author&query=Monreal%2C+B">B. Monreal</a>, <a href="/search/nucl-ex?searchtype=author&query=Mucogllava%2C+B">B. Mucogllava</a> , et al. (26 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="2310.02112v1-abstract-short" style="display: inline;"> Cyclotron Radiation Emission Spectroscopy (CRES) is a technique for precision measurement of the energies of charged particles, which is being developed by the Project 8 Collaboration to measure the neutrino mass using tritium beta-decay spectroscopy. Project 8 seeks to use the CRES technique to measure the neutrino mass with a sensitivity of 40~meV, requiring a large supply of tritium atoms store… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.02112v1-abstract-full').style.display = 'inline'; document.getElementById('2310.02112v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2310.02112v1-abstract-full" style="display: none;"> Cyclotron Radiation Emission Spectroscopy (CRES) is a technique for precision measurement of the energies of charged particles, which is being developed by the Project 8 Collaboration to measure the neutrino mass using tritium beta-decay spectroscopy. Project 8 seeks to use the CRES technique to measure the neutrino mass with a sensitivity of 40~meV, requiring a large supply of tritium atoms stored in a multi-cubic meter detector volume. Antenna arrays are one potential technology compatible with an experiment of this scale, but the capability of an antenna-based CRES experiment to measure the neutrino mass depends on the efficiency of the signal detection algorithms. In this paper, we develop efficiency models for three signal detection algorithms and compare them using simulations from a prototype antenna-based CRES experiment as a case-study. The algorithms include a power threshold, a matched filter template bank, and a neural network based machine learning approach, which are analyzed in terms of their average detection efficiency and relative computational cost. It is found that significant improvements in detection efficiency and, therefore, neutrino mass sensitivity are achievable, with only a moderate increase in computation cost, by utilizing either the matched filter or machine learning approach in place of a power threshold, which is the baseline signal detection algorithm used in previous CRES experiments by Project 8. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.02112v1-abstract-full').style.display = 'none'; document.getElementById('2310.02112v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 3 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> JINST 19 (2024) P05073 </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> [<a href="https://arxiv.org/pdf/2310.00720">pdf</a>, <a href="https://arxiv.org/format/2310.00720">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.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&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/nucl-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/nucl-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&query=Afedulidis%2C+O">O. Afedulidis</a>, <a href="/search/nucl-ex?searchtype=author&query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/nucl-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/nucl-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/nucl-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/nucl-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/nucl-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/nucl-ex?searchtype=author&query=Bao%2C+H+-">H. -R. Bao</a>, <a href="/search/nucl-ex?searchtype=author&query=Batozskaya%2C+V">V. Batozskaya</a>, <a href="/search/nucl-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/nucl-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bianco%2C+E">E. Bianco</a>, <a href="/search/nucl-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/nucl-ex?searchtype=author&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… <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';">▽ 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';">△ 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> [<a href="https://arxiv.org/pdf/2309.16622">pdf</a>, <a href="https://arxiv.org/format/2309.16622">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.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&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhosale%2C+S+R">S. R. Bhosale</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Brandenburg%2C+J+D">J. D. Brandenburg</a>, <a href="/search/nucl-ex?searchtype=author&query=Broodo%2C+C">C. Broodo</a>, <a href="/search/nucl-ex?searchtype=author&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 $B$… <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';">▽ 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';">△ 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> [<a href="https://arxiv.org/pdf/2309.14206">pdf</a>, <a href="https://arxiv.org/format/2309.14206">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/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&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/nucl-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/nucl-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/nucl-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/nucl-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/nucl-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/nucl-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/nucl-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/nucl-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/nucl-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/nucl-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/nucl-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/nucl-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/nucl-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/nucl-ex?searchtype=author&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… <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';">▽ 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 $0<p_{\mathrm{T}} <14\,\mathrm{GeV}/c$ and rapidities in the ranges of $1.5<y^*<4.0$ and $-5.0<y^*<-2.5$ 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';">△ 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> [<a href="https://arxiv.org/pdf/2309.12610">pdf</a>, <a href="https://arxiv.org/format/2309.12610">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.109.044914">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&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhosale%2C+S+R">S. R. Bhosale</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Brandenburg%2C+J+D">J. D. Brandenburg</a>, <a href="/search/nucl-ex?searchtype=author&query=Broodo%2C+C">C. Broodo</a>, <a href="/search/nucl-ex?searchtype=author&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, $dv_3/dy|_{(y=0)}$,… <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';">▽ 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';">△ 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> [<a href="https://arxiv.org/pdf/2308.16846">pdf</a>, <a href="https://arxiv.org/format/2308.16846">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/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&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Aitbaev%2C+A">A. Aitbaev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alpatov%2C+E">E. Alpatov</a>, <a href="/search/nucl-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhosale%2C+S+R">S. R. Bhosale</a>, <a href="/search/nucl-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a>, <a href="/search/nucl-ex?searchtype=author&query=Brandenburg%2C+J+D">J. D. Brandenburg</a> , et al. (333 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="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 (… <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';">▽ 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';">△ 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/2307.13891">arXiv:2307.13891</a> <span> [<a href="https://arxiv.org/pdf/2307.13891">pdf</a>, <a href="https://arxiv.org/format/2307.13891">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> 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&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhosale%2C+S+R">S. R. Bhosale</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Brandenburg%2C+J+D">J. D. Brandenburg</a>, <a href="/search/nucl-ex?searchtype=author&query=Cai%2C+X+Z">X. Z. Cai</a>, <a href="/search/nucl-ex?searchtype=author&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… <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';">▽ 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 $15 < p_{\rm T, jet} <$ 20 and $20 < p_{\rm T, jet} <$ 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';">△ 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> [<a href="https://arxiv.org/pdf/2307.07077">pdf</a>, <a href="https://arxiv.org/format/2307.07077">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.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&query=Chen%2C+S">S. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Browne%2C+F">F. Browne</a>, <a href="/search/nucl-ex?searchtype=author&query=Doornenbal%2C+P">P. Doornenbal</a>, <a href="/search/nucl-ex?searchtype=author&query=Lee%2C+J">J. Lee</a>, <a href="/search/nucl-ex?searchtype=author&query=Obertelli%2C+A">A. Obertelli</a>, <a href="/search/nucl-ex?searchtype=author&query=Tsunoda%2C+Y">Y. Tsunoda</a>, <a href="/search/nucl-ex?searchtype=author&query=Otsuka%2C+T">T. Otsuka</a>, <a href="/search/nucl-ex?searchtype=author&query=Chazono%2C+Y">Y. Chazono</a>, <a href="/search/nucl-ex?searchtype=author&query=Hagen%2C+G">G. Hagen</a>, <a href="/search/nucl-ex?searchtype=author&query=Holt%2C+J+D">J. D. Holt</a>, <a href="/search/nucl-ex?searchtype=author&query=Jansen%2C+G+R">G. R. Jansen</a>, <a href="/search/nucl-ex?searchtype=author&query=Ogata%2C+K">K. Ogata</a>, <a href="/search/nucl-ex?searchtype=author&query=Shimizu%2C+N">N. Shimizu</a>, <a href="/search/nucl-ex?searchtype=author&query=Utsuno%2C+Y">Y. Utsuno</a>, <a href="/search/nucl-ex?searchtype=author&query=Yoshida%2C+K">K. Yoshida</a>, <a href="/search/nucl-ex?searchtype=author&query=Achouri%2C+N+L">N. L. Achouri</a>, <a href="/search/nucl-ex?searchtype=author&query=Baba%2C+H">H. Baba</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvet%2C+D">D. Calvet</a>, <a href="/search/nucl-ex?searchtype=author&query=Ch%C3%A2teau%2C+F">F. Ch芒teau</a>, <a href="/search/nucl-ex?searchtype=author&query=Chiga%2C+N">N. Chiga</a>, <a href="/search/nucl-ex?searchtype=author&query=Corsi%2C+A">A. Corsi</a>, <a href="/search/nucl-ex?searchtype=author&query=Cort%C3%A9s%2C+M+L">M. L. Cort茅s</a>, <a href="/search/nucl-ex?searchtype=author&query=Delbart%2C+A">A. Delbart</a>, <a href="/search/nucl-ex?searchtype=author&query=Gheller%2C+J+-">J. -M. Gheller</a>, <a href="/search/nucl-ex?searchtype=author&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… <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';">▽ 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';">△ 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> [<a href="https://arxiv.org/pdf/2307.06867">pdf</a>, <a href="https://arxiv.org/format/2307.06867">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="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&query=Stefanescu%2C+A+I">A. I. Stefanescu</a>, <a href="/search/nucl-ex?searchtype=author&query=Panin%2C+V">V. Panin</a>, <a href="/search/nucl-ex?searchtype=author&query=Trache%2C+L">L. Trache</a>, <a href="/search/nucl-ex?searchtype=author&query=Motobayashi%2C+T">T. Motobayashi</a>, <a href="/search/nucl-ex?searchtype=author&query=Otsu%2C+H">H. Otsu</a>, <a href="/search/nucl-ex?searchtype=author&query=Saastamoinen%2C+A">A. Saastamoinen</a>, <a href="/search/nucl-ex?searchtype=author&query=Uesaka%2C+T">T. Uesaka</a>, <a href="/search/nucl-ex?searchtype=author&query=Stuhl%2C+L">L. Stuhl</a>, <a href="/search/nucl-ex?searchtype=author&query=Tanaka%2C+J">J. Tanaka</a>, <a href="/search/nucl-ex?searchtype=author&query=Tudor%2C+D">D. Tudor</a>, <a href="/search/nucl-ex?searchtype=author&query=Stefanescu%2C+I+C">I. C. Stefanescu</a>, <a href="/search/nucl-ex?searchtype=author&query=Spiridon%2C+A+E">A. E. Spiridon</a>, <a href="/search/nucl-ex?searchtype=author&query=Yoneda%2C+K">K. Yoneda</a>, <a href="/search/nucl-ex?searchtype=author&query=Baba%2C+H">H. Baba</a>, <a href="/search/nucl-ex?searchtype=author&query=Kurokawa%2C+M">M. Kurokawa</a>, <a href="/search/nucl-ex?searchtype=author&query=Togano%2C+Y">Y. Togano</a>, <a href="/search/nucl-ex?searchtype=author&query=Halasz%2C+Z">Z. Halasz</a>, <a href="/search/nucl-ex?searchtype=author&query=Sasano%2C+M">M. Sasano</a>, <a href="/search/nucl-ex?searchtype=author&query=Ota%2C+S">S. Ota</a>, <a href="/search/nucl-ex?searchtype=author&query=Kubota%2C+Y">Y. Kubota</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahn%2C+D+S">D. S. Ahn</a>, <a href="/search/nucl-ex?searchtype=author&query=Kobayashi%2C+T">T. Kobayashi</a>, <a href="/search/nucl-ex?searchtype=author&query=Elekes%2C+Z">Z. Elekes</a>, <a href="/search/nucl-ex?searchtype=author&query=Fukuda%2C+N">N. Fukuda</a>, <a href="/search/nucl-ex?searchtype=author&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… <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';">▽ 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';">△ 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/2307.06083">arXiv:2307.06083</a> <span> [<a href="https://arxiv.org/pdf/2307.06083">pdf</a>, <a href="https://arxiv.org/format/2307.06083">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2023.137875">10.1016/j.physletb.2023.137875 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Searching for universality of dineutron correlation at the surface of Borromean nuclei </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Corsi%2C+A">A. Corsi</a>, <a href="/search/nucl-ex?searchtype=author&query=Kubota%2C+Y">Y. Kubota</a>, <a href="/search/nucl-ex?searchtype=author&query=Casal%2C+J">J. Casal</a>, <a href="/search/nucl-ex?searchtype=author&query=Gomez-Ramos%2C+M">M. Gomez-Ramos</a>, <a href="/search/nucl-ex?searchtype=author&query=Moro%2C+A+M">A. M. Moro</a>, <a href="/search/nucl-ex?searchtype=author&query=Authelet%2C+G">G. Authelet</a>, <a href="/search/nucl-ex?searchtype=author&query=Baba%2C+H">H. Baba</a>, <a href="/search/nucl-ex?searchtype=author&query=Caesar%2C+C">C. Caesar</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvet%2C+D">D. Calvet</a>, <a href="/search/nucl-ex?searchtype=author&query=Delbart%2C+A">A. Delbart</a>, <a href="/search/nucl-ex?searchtype=author&query=Dozono%2C+M">M. Dozono</a>, <a href="/search/nucl-ex?searchtype=author&query=Feng%2C+J">J. Feng</a>, <a href="/search/nucl-ex?searchtype=author&query=Flavigny%2C+F">F. Flavigny</a>, <a href="/search/nucl-ex?searchtype=author&query=Gheller%2C+J+-">J. -M. Gheller</a>, <a href="/search/nucl-ex?searchtype=author&query=Gibelin%2C+J">J. Gibelin</a>, <a href="/search/nucl-ex?searchtype=author&query=Giganon%2C+A">A. Giganon</a>, <a href="/search/nucl-ex?searchtype=author&query=Gillibert%2C+A">A. Gillibert</a>, <a href="/search/nucl-ex?searchtype=author&query=Hasegawa%2C+K">K. Hasegawa</a>, <a href="/search/nucl-ex?searchtype=author&query=Isobe%2C+T">T. Isobe</a>, <a href="/search/nucl-ex?searchtype=author&query=Kanaya%2C+Y">Y. Kanaya</a>, <a href="/search/nucl-ex?searchtype=author&query=Kawakami%2C+S">S. Kawakami</a>, <a href="/search/nucl-ex?searchtype=author&query=Kim%2C+D">D. Kim</a>, <a href="/search/nucl-ex?searchtype=author&query=Kiyokawa%2C+Y">Y. Kiyokawa</a>, <a href="/search/nucl-ex?searchtype=author&query=Kobayashi%2C+M">M. Kobayashi</a>, <a href="/search/nucl-ex?searchtype=author&query=Kobayashi%2C+N">N. Kobayashi</a> , et al. (43 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="2307.06083v1-abstract-short" style="display: inline;"> The dineutron correlation is systematically studied in three different Borromean nuclei near the neutron dripline, 11Li, 14Be and 17B, via the (p, pn) knockout reaction measured at the RIBF facility in RIKEN. For the three nuclei, the correlation angle between the valence neutrons is found to be largest in the same range of intrinsic momenta, which can be associated to the nuclear surface. This re… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.06083v1-abstract-full').style.display = 'inline'; document.getElementById('2307.06083v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2307.06083v1-abstract-full" style="display: none;"> The dineutron correlation is systematically studied in three different Borromean nuclei near the neutron dripline, 11Li, 14Be and 17B, via the (p, pn) knockout reaction measured at the RIBF facility in RIKEN. For the three nuclei, the correlation angle between the valence neutrons is found to be largest in the same range of intrinsic momenta, which can be associated to the nuclear surface. This result reinforces the prediction that the formation of the dineutron is universal in environments with low neutron density, such as the surface of neutron-rich Borromean nuclei. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.06083v1-abstract-full').style.display = 'none'; document.getElementById('2307.06083v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 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> Physics Letters B Volume 840, 10 May 2023, 137875 </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> [<a href="https://arxiv.org/pdf/2305.06711">pdf</a>, <a href="https://arxiv.org/format/2305.06711">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.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&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/nucl-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/nucl-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/nucl-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/nucl-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/nucl-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/nucl-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/nucl-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/nucl-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/nucl-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/nucl-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/nucl-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/nucl-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/nucl-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/nucl-ex?searchtype=author&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… <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';">▽ 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';">△ 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> [<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>] </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&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/nucl-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/nucl-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/nucl-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/nucl-ex?searchtype=author&query=An%2C+M+R">M. R. An</a>, <a href="/search/nucl-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/nucl-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/nucl-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/nucl-ex?searchtype=author&query=Batozskaya%2C+V">V. Batozskaya</a>, <a href="/search/nucl-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/nucl-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bianco%2C+E">E. Bianco</a>, <a href="/search/nucl-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/nucl-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/nucl-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/nucl-ex?searchtype=author&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… <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';">▽ 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';">△ 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/2304.10993">arXiv:2304.10993</a> <span> [<a href="https://arxiv.org/pdf/2304.10993">pdf</a>, <a href="https://arxiv.org/format/2304.10993">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.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&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhosale%2C+S+R">S. R. Bhosale</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Brandenburg%2C+J+D">J. D. Brandenburg</a>, <a href="/search/nucl-ex?searchtype=author&query=Broodo%2C+C">C. Broodo</a>, <a href="/search/nucl-ex?searchtype=author&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… <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';">▽ 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';">△ 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/2304.10608">arXiv:2304.10608</a> <span> [<a href="https://arxiv.org/pdf/2304.10608">pdf</a>, <a href="https://arxiv.org/ps/2304.10608">ps</a>, <a href="https://arxiv.org/format/2304.10608">other</a>] </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> <p class="title is-5 mathjax"> Executive Summary of the Topical Program: Nuclear Isomers in the Era of FRIB </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Misch%2C+G+W">G. W. Misch</a>, <a href="/search/nucl-ex?searchtype=author&query=Mumpower%2C+M+R">M. R. Mumpower</a>, <a href="/search/nucl-ex?searchtype=author&query=Kondev%2C+F+G">F. G. Kondev</a>, <a href="/search/nucl-ex?searchtype=author&query=Marley%2C+S+T">S. T. Marley</a>, <a href="/search/nucl-ex?searchtype=author&query=Almaraz-Calderon%2C+S">S. Almaraz-Calderon</a>, <a href="/search/nucl-ex?searchtype=author&query=Brodeur%2C+M">M. Brodeur</a>, <a href="/search/nucl-ex?searchtype=author&query=Brown%2C+B+A">B. A. Brown</a>, <a href="/search/nucl-ex?searchtype=author&query=Carpenter%2C+M+P">M. P. Carpenter</a>, <a href="/search/nucl-ex?searchtype=author&query=Carroll%2C+J+J">J. J. Carroll</a>, <a href="/search/nucl-ex?searchtype=author&query=Chiara%2C+C+J">C. J. Chiara</a>, <a href="/search/nucl-ex?searchtype=author&query=Chipps%2C+K+A">K. A. Chipps</a>, <a href="/search/nucl-ex?searchtype=author&query=Crider%2C+B+P">B. P. Crider</a>, <a href="/search/nucl-ex?searchtype=author&query=Gade%2C+A">A. Gade</a>, <a href="/search/nucl-ex?searchtype=author&query=Grzywacz%2C+R">R. Grzywacz</a>, <a href="/search/nucl-ex?searchtype=author&query=Jones%2C+K+L">K. L. Jones</a>, <a href="/search/nucl-ex?searchtype=author&query=Kay%2C+B+P">B. P. Kay</a>, <a href="/search/nucl-ex?searchtype=author&query=Kolos%2C+K">K. Kolos</a>, <a href="/search/nucl-ex?searchtype=author&query=Litvinov%2C+Y+A">Yu. A. Litvinov</a>, <a href="/search/nucl-ex?searchtype=author&query=Lopez-Caceres%2C+S">S. Lopez-Caceres</a>, <a href="/search/nucl-ex?searchtype=author&query=Meyer%2C+B+S">B. S. Meyer</a>, <a href="/search/nucl-ex?searchtype=author&query=Minamisono%2C+K">K. Minamisono</a>, <a href="/search/nucl-ex?searchtype=author&query=Morgan%2C+G+E">G. E. Morgan</a>, <a href="/search/nucl-ex?searchtype=author&query=Orford%2C+R">R. Orford</a>, <a href="/search/nucl-ex?searchtype=author&query=Pain%2C+S+D">S. D. Pain</a>, <a href="/search/nucl-ex?searchtype=author&query=Purcell%2C+J">J. Purcell</a> , et al. (7 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="2304.10608v1-abstract-short" style="display: inline;"> We report on the Facility for Rare Isotope Beams (FRIB) Theory Alliance topical program "Nuclear Isomers in the Era of FRIB". We outline the many ways isomers influence and contribute to nuclear science and technology, especially in the four FRIB pillars: properties of rare isotopes, nuclear astrophysics, fundamental symmetries, and applications for the nation and society. We conclude with a resol… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.10608v1-abstract-full').style.display = 'inline'; document.getElementById('2304.10608v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2304.10608v1-abstract-full" style="display: none;"> We report on the Facility for Rare Isotope Beams (FRIB) Theory Alliance topical program "Nuclear Isomers in the Era of FRIB". We outline the many ways isomers influence and contribute to nuclear science and technology, especially in the four FRIB pillars: properties of rare isotopes, nuclear astrophysics, fundamental symmetries, and applications for the nation and society. We conclude with a resolution stating our recommendation that the nuclear physics community actively pursue isomer research. A white paper is forthcoming. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.10608v1-abstract-full').style.display = 'none'; document.getElementById('2304.10608v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 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">4 pages including references</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LA-UR-23-22994 </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> [<a href="https://arxiv.org/pdf/2304.10037">pdf</a>, <a href="https://arxiv.org/format/2304.10037">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.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&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Aitbaev%2C+A">A. Aitbaev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Baker%2C+W">W. Baker</a>, <a href="/search/nucl-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a>, <a href="/search/nucl-ex?searchtype=author&query=Brandenburg%2C+J+D">J. D. Brandenburg</a> , et al. (333 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="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 ($螖P = P_螞 - P_{\bar螞} < 0$). Additionally, quantum chromodynamics (QCD) predicts topological charge fluctuations in vacuum, resulting in a chirality… <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';">▽ 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 ($螖P = P_螞 - P_{\bar螞} < 0$). 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';">△ 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> [<a href="https://arxiv.org/pdf/2304.03430">pdf</a>, <a href="https://arxiv.org/format/2304.03430">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Observation of the electromagnetic field effect via charge-dependent directed flow in heavy-ion collisions at the Relativistic Heavy Ion Collider </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Aitbaev%2C+A">A. Aitbaev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alpatov%2C+E">E. Alpatov</a>, <a href="/search/nucl-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhosale%2C+S+R">S. R. Bhosale</a>, <a href="/search/nucl-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a>, <a href="/search/nucl-ex?searchtype=author&query=Brandenburg%2C+J+D">J. D. Brandenburg</a> , et al. (331 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2304.03430v2-abstract-short" style="display: inline;"> The deconfined quark-gluon plasma (QGP) created in relativistic heavy-ion collisions enables the exploration of the fundamental properties of matter under extreme conditions. Non-central collisions can produce strong magnetic fields on the order of $10^{18}$ Gauss, which offers a probe into the electrical conductivity of the QGP. In particular, quarks and anti-quarks carry opposite charges and rec… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.03430v2-abstract-full').style.display = 'inline'; document.getElementById('2304.03430v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2304.03430v2-abstract-full" style="display: none;"> The deconfined quark-gluon plasma (QGP) created in relativistic heavy-ion collisions enables the exploration of the fundamental properties of matter under extreme conditions. Non-central collisions can produce strong magnetic fields on the order of $10^{18}$ Gauss, which offers a probe into the electrical conductivity of the QGP. In particular, quarks and anti-quarks carry opposite charges and receive contrary electromagnetic forces that alter their momenta. This phenomenon can be manifested in the collective motion of final-state particles, specifically in the rapidity-odd directed flow, denoted as $v_1(\mathsf{y})$. Here we present the charge-dependent measurements of $dv_1/d\mathsf{y}$ near midrapidities for $蟺^{\pm}$, $K^{\pm}$, and $p(\bar{p})$ in Au+Au and isobar ($_{44}^{96}$Ru+$_{44}^{96}$Ru and $_{40}^{96}$Zr+$_{40}^{96}$Zr) collisions at $\sqrt{s_{\rm NN}}=$ 200 GeV, and in Au+Au collisions at 27 GeV, recorded by the STAR detector at the Relativistic Heavy Ion Collider. The combined dependence of the $v_1$ signal on collision system, particle species, and collision centrality can be qualitatively and semi-quantitatively understood as several effects on constituent quarks. While the results in central events can be explained by the $u$ and $d$ quarks transported from initial-state nuclei, those in peripheral events reveal the impacts of the electromagnetic field on the QGP. Our data put valuable constraints on the electrical conductivity of the QGP in theoretical calculations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.03430v2-abstract-full').style.display = 'none'; document.getElementById('2304.03430v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 February, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 6 April, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2303.12055">arXiv:2303.12055</a> <span> [<a href="https://arxiv.org/pdf/2303.12055">pdf</a>, <a href="https://arxiv.org/format/2303.12055">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.109.035503">10.1103/PhysRevC.109.035503 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Cyclotron Radiation Emission Spectroscopy of Electrons from Tritium Beta Decay and $^{83\rm m}$Kr Internal Conversion </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Project+8+Collaboration"> Project 8 Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Esfahani%2C+A+A">A. Ashtari Esfahani</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6ser%2C+S">S. B枚ser</a>, <a href="/search/nucl-ex?searchtype=author&query=Buzinsky%2C+N">N. Buzinsky</a>, <a href="/search/nucl-ex?searchtype=author&query=Carmona-Benitez%2C+M+C">M. C. Carmona-Benitez</a>, <a href="/search/nucl-ex?searchtype=author&query=Claessens%2C+C">C. Claessens</a>, <a href="/search/nucl-ex?searchtype=author&query=de+Viveiros%2C+L">L. de Viveiros</a>, <a href="/search/nucl-ex?searchtype=author&query=Doe%2C+P+J">P. J. Doe</a>, <a href="/search/nucl-ex?searchtype=author&query=Fertl%2C+M">M. Fertl</a>, <a href="/search/nucl-ex?searchtype=author&query=Formaggio%2C+J+A">J. A. Formaggio</a>, <a href="/search/nucl-ex?searchtype=author&query=Gaison%2C+J+K">J. K. Gaison</a>, <a href="/search/nucl-ex?searchtype=author&query=Gladstone%2C+L">L. Gladstone</a>, <a href="/search/nucl-ex?searchtype=author&query=Guigue%2C+M">M. Guigue</a>, <a href="/search/nucl-ex?searchtype=author&query=Hartse%2C+J">J. Hartse</a>, <a href="/search/nucl-ex?searchtype=author&query=Heeger%2C+K+M">K. M. Heeger</a>, <a href="/search/nucl-ex?searchtype=author&query=Huyan%2C+X">X. Huyan</a>, <a href="/search/nucl-ex?searchtype=author&query=Jones%2C+A+M">A. M. Jones</a>, <a href="/search/nucl-ex?searchtype=author&query=Kazkaz%2C+K">K. Kazkaz</a>, <a href="/search/nucl-ex?searchtype=author&query=LaRoque%2C+B+H">B. H. LaRoque</a>, <a href="/search/nucl-ex?searchtype=author&query=Li%2C+M">M. Li</a>, <a href="/search/nucl-ex?searchtype=author&query=Lindman%2C+A">A. Lindman</a>, <a href="/search/nucl-ex?searchtype=author&query=Machado%2C+E">E. Machado</a>, <a href="/search/nucl-ex?searchtype=author&query=Marsteller%2C+A">A. Marsteller</a>, <a href="/search/nucl-ex?searchtype=author&query=Matth%C3%A9%2C+C">C. Matth茅</a>, <a href="/search/nucl-ex?searchtype=author&query=Mohiuddin%2C+R">R. Mohiuddin</a> , et al. (32 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="2303.12055v3-abstract-short" style="display: inline;"> Project 8 has developed a novel technique, Cyclotron Radiation Emission Spectroscopy (CRES), for direct neutrino mass measurements. A CRES-based experiment on the beta spectrum of tritium has been carried out in a small-volume apparatus. We provide a detailed account of the experiment, focusing on systematic effects and analysis techniques. In a Bayesian (frequentist) analysis, we measure the trit… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.12055v3-abstract-full').style.display = 'inline'; document.getElementById('2303.12055v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2303.12055v3-abstract-full" style="display: none;"> Project 8 has developed a novel technique, Cyclotron Radiation Emission Spectroscopy (CRES), for direct neutrino mass measurements. A CRES-based experiment on the beta spectrum of tritium has been carried out in a small-volume apparatus. We provide a detailed account of the experiment, focusing on systematic effects and analysis techniques. In a Bayesian (frequentist) analysis, we measure the tritium endpoint as $18553^{+18}_{-19}$ ($18548^{+19}_{-19}$) eV and set upper limits of 155 (152) eV (90% C.L.) on the neutrino mass. No background events are observed beyond the endpoint in 82 days of running. We also demonstrate an energy resolution of $1.66\pm0.19$ eV in a resolution-optimized magnetic trap configuration by measuring $^{83\rm m}$Kr 17.8-keV internal-conversion electrons. These measurements establish CRES as a low-background, high-resolution technique with the potential to advance neutrino mass sensitivity. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.12055v3-abstract-full').style.display = 'none'; document.getElementById('2303.12055v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 December, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 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">41 pages, 33 figures, submitted to PRC</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, 035503 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2303.09074">arXiv:2303.09074</a> <span> [<a href="https://arxiv.org/pdf/2303.09074">pdf</a>, <a href="https://arxiv.org/format/2303.09074">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/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&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Aitbaev%2C+A">A. Aitbaev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Baker%2C+W">W. Baker</a>, <a href="/search/nucl-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a>, <a href="/search/nucl-ex?searchtype=author&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… <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';">▽ 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';">△ 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> [<a href="https://arxiv.org/pdf/2303.06590">pdf</a>, <a href="https://arxiv.org/format/2303.06590">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/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&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Baker%2C+W">W. Baker</a>, <a href="/search/nucl-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Brandenburg%2C+J+D">J. D. Brandenburg</a>, <a href="/search/nucl-ex?searchtype=author&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 ($|y|<$ 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 $3.5 < p_{\rm T} < 9$ GeV/$c$ in various configurations of the collision geometry. The HFE yields in head-on Au+Au collisions are suppressed… <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';">▽ 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 ($|y|<$ 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 $3.5 < p_{\rm T} < 9$ 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';">△ 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> [<a href="https://arxiv.org/pdf/2303.03546">pdf</a>, <a href="https://arxiv.org/format/2303.03546">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.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&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Baker%2C+W">W. Baker</a>, <a href="/search/nucl-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Brandenburg%2C+J+D">J. D. Brandenburg</a>, <a href="/search/nucl-ex?searchtype=author&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 ($|y|<0.8$) 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… <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';">▽ 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 ($|y|<0.8$) 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 $p_{\rm T}<$ 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';">△ 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/2301.11062">arXiv:2301.11062</a> <span> [<a href="https://arxiv.org/pdf/2301.11062">pdf</a>, <a href="https://arxiv.org/format/2301.11062">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2023.138165">10.1016/j.physletb.2023.138165 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Energy Dependence of Intermittency for Charged Hadrons in Au+Au Collisions at RHIC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdulhamid%2C+M+I">M. I. Abdulhamid</a>, <a href="/search/nucl-ex?searchtype=author&query=Aboona%2C+B+E">B. E. Aboona</a>, <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+J+R">J. R. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+I">I. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+D+M">D. M. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Aslam%2C+S">S. Aslam</a>, <a href="/search/nucl-ex?searchtype=author&query=Atchison%2C+J">J. Atchison</a>, <a href="/search/nucl-ex?searchtype=author&query=Bairathi%2C+V">V. Bairathi</a>, <a href="/search/nucl-ex?searchtype=author&query=Baker%2C+W">W. Baker</a>, <a href="/search/nucl-ex?searchtype=author&query=Cap%2C+J+G+B">J. G. Ball Cap</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">K. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhagat%2C+P">P. Bhagat</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhatta%2C+S">S. Bhatta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Brandenburg%2C+J+D">J. D. Brandenburg</a>, <a href="/search/nucl-ex?searchtype=author&query=Cai%2C+X+Z">X. Z. Cai</a> , et al. (359 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="2301.11062v2-abstract-short" style="display: inline;"> Density fluctuations near the QCD critical point can be probed via an intermittency analysis in relativistic heavy-ion collisions. We report the first measurement of intermittency in Au$+$Au collisions at $\sqrt{s_\mathrm{_{NN}}}$ = 7.7-200 GeV measured by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The scaled factorial moments of identified charged hadrons are analyzed at m… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2301.11062v2-abstract-full').style.display = 'inline'; document.getElementById('2301.11062v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2301.11062v2-abstract-full" style="display: none;"> Density fluctuations near the QCD critical point can be probed via an intermittency analysis in relativistic heavy-ion collisions. We report the first measurement of intermittency in Au$+$Au collisions at $\sqrt{s_\mathrm{_{NN}}}$ = 7.7-200 GeV measured by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The scaled factorial moments of identified charged hadrons are analyzed at mid-rapidity and within the transverse momentum phase space. We observe a power-law behavior of scaled factorial moments in Au$+$Au collisions and a decrease in the extracted scaling exponent ($谓$) from peripheral to central collisions. The $谓$ is consistent with a constant for different collisions energies in the mid-central (10-40\%) collisions. Moreover, the $谓$ in the 0-5\% most central Au$+$Au collisions exhibits a non-monotonic energy dependence that reaches a possible minimum around $\sqrt{s_\mathrm{_{NN}}}$ = 27 GeV. The physics implications on the QCD phase structure are discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2301.11062v2-abstract-full').style.display = 'none'; document.getElementById('2301.11062v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 September, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 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">8 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> Physics Letters B 845 (2023) 138165 </p> </li> </ol> <nav class="pagination is-small is-centered breathe-horizontal" role="navigation" aria-label="pagination"> <a href="" class="pagination-previous is-invisible">Previous </a> <a href="/search/?searchtype=author&query=Sun%2C+Y&start=50" class="pagination-next" >Next </a> <ul class="pagination-list"> <li> <a href="/search/?searchtype=author&query=Sun%2C+Y&start=0" class="pagination-link is-current" aria-label="Goto page 1">1 </a> </li> <li> <a href="/search/?searchtype=author&query=Sun%2C+Y&start=50" class="pagination-link " aria-label="Page 2" aria-current="page">2 </a> </li> <li> <a href="/search/?searchtype=author&query=Sun%2C+Y&start=100" class="pagination-link " aria-label="Page 3" aria-current="page">3 </a> </li> <li> <a href="/search/?searchtype=author&query=Sun%2C+Y&start=150" 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