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</div> <div class="control"> <button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <nav class="pagination is-small is-centered breathe-horizontal" role="navigation" aria-label="pagination"> <a href="" class="pagination-previous is-invisible">Previous </a> <a href="/search/?searchtype=author&query=Angerami%2C+A&start=50" class="pagination-next" >Next </a> <ul class="pagination-list"> <li> <a href="/search/?searchtype=author&query=Angerami%2C+A&start=0" class="pagination-link is-current" aria-label="Goto page 1">1 </a> </li> <li> <a href="/search/?searchtype=author&query=Angerami%2C+A&start=50" class="pagination-link " aria-label="Page 2" aria-current="page">2 </a> </li> </ul> </nav> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2412.03724">arXiv:2412.03724</a> <span> [<a href="https://arxiv.org/pdf/2412.03724">pdf</a>, <a href="https://arxiv.org/format/2412.03724">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 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"> A simple model to investigate jet quenching and correlated errors for centrality-dependent nuclear-modification factors in relativistic heavy-ion collisions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Soltz%2C+R+A">Ron A Soltz</a>, <a href="/search/nucl-ex?searchtype=author&query=Hangal%2C+D+A">Dhanush A Hangal</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">Aaron Angerami</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2412.03724v1-abstract-short" style="display: inline;"> We apply Bayesian techniques to compare a simple, empirical model for jet-quenching in heavy-ion collisions to centrality-dependent jet-$R_{AA}$ measured by ATLAS for Pb+Pb collisions at $\sqrt{s_{NN}}=5.02$~TeV. We find that the $R_{AA}$ values for central collisions are adequately described with a model for the mean $p_T$-dependent jet energy-loss using only 2-parameters. This model is extended… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.03724v1-abstract-full').style.display = 'inline'; document.getElementById('2412.03724v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2412.03724v1-abstract-full" style="display: none;"> We apply Bayesian techniques to compare a simple, empirical model for jet-quenching in heavy-ion collisions to centrality-dependent jet-$R_{AA}$ measured by ATLAS for Pb+Pb collisions at $\sqrt{s_{NN}}=5.02$~TeV. We find that the $R_{AA}$ values for central collisions are adequately described with a model for the mean $p_T$-dependent jet energy-loss using only 2-parameters. This model is extended by incorporating 2D initial geometry information from TRENTO and compared to centrality-dependent $R_{AA}$ values. We find that the results are sensitive to value of the jet-quenching formation time, $蟿_f$, and that the optimal value of $蟿_f$ varies with the assumed path-length dependence of the energy-loss. We construct a covariance error matrix for the data from the $p_T$ dependent contributions to the ATLAS systematic errors and perform Bayesian calibrations for several different assumptions for the systematic error correlations. We show that most-probable functions and $蠂^2$ values are sensitive to assumptions made when fitting to correlated errors. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.03724v1-abstract-full').style.display = 'none'; document.getElementById('2412.03724v1-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 December, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2408.08247">arXiv:2408.08247</a> <span> [<a href="https://arxiv.org/pdf/2408.08247">pdf</a>, <a href="https://arxiv.org/format/2408.08247">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="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"> Bayesian Inference analysis of jet quenching using inclusive jet and hadron suppression measurements </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Ehlers%2C+R">R. Ehlers</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Mulligan%2C+J">J. Mulligan</a>, <a href="/search/nucl-ex?searchtype=author&query=Ji%2C+Y">Y. Ji</a>, <a href="/search/nucl-ex?searchtype=author&query=Kumar%2C+A">A. Kumar</a>, <a href="/search/nucl-ex?searchtype=author&query=Mak%2C+S">S. Mak</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacobs%2C+P+M">P. M. Jacobs</a>, <a href="/search/nucl-ex?searchtype=author&query=Majumder%2C+A">A. Majumder</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Arora%2C+R">R. Arora</a>, <a href="/search/nucl-ex?searchtype=author&query=Bass%2C+S+A">S. A. Bass</a>, <a href="/search/nucl-ex?searchtype=author&query=Datta%2C+R">R. Datta</a>, <a href="/search/nucl-ex?searchtype=author&query=Du%2C+L">L. Du</a>, <a href="/search/nucl-ex?searchtype=author&query=Elfner%2C+H">H. Elfner</a>, <a href="/search/nucl-ex?searchtype=author&query=Fries%2C+R+J">R. J. Fries</a>, <a href="/search/nucl-ex?searchtype=author&query=Gale%2C+C">C. Gale</a>, <a href="/search/nucl-ex?searchtype=author&query=He%2C+Y">Y. He</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacak%2C+B+V">B. V. Jacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Jeon%2C+S">S. Jeon</a>, <a href="/search/nucl-ex?searchtype=author&query=Jonas%2C+F">F. Jonas</a>, <a href="/search/nucl-ex?searchtype=author&query=Kasper%2C+L">L. Kasper</a>, <a href="/search/nucl-ex?searchtype=author&query=Kordell%2C+M">M. Kordell II</a>, <a href="/search/nucl-ex?searchtype=author&query=Kunnawalkam-Elayavalli%2C+R">R. Kunnawalkam-Elayavalli</a>, <a href="/search/nucl-ex?searchtype=author&query=Latessa%2C+J">J. Latessa</a>, <a href="/search/nucl-ex?searchtype=author&query=Lee%2C+Y+-">Y. -J. Lee</a> , et al. (28 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="2408.08247v2-abstract-short" style="display: inline;"> The JETSCAPE Collaboration reports a new determination of the jet transport parameter $\hat{q}$ in the Quark-Gluon Plasma (QGP) using Bayesian Inference, incorporating all available inclusive hadron and jet yield suppression data measured in heavy-ion collisions at RHIC and the LHC. This multi-observable analysis extends the previously published JETSCAPE Bayesian Inference determination of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2408.08247v2-abstract-full').style.display = 'inline'; document.getElementById('2408.08247v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2408.08247v2-abstract-full" style="display: none;"> The JETSCAPE Collaboration reports a new determination of the jet transport parameter $\hat{q}$ in the Quark-Gluon Plasma (QGP) using Bayesian Inference, incorporating all available inclusive hadron and jet yield suppression data measured in heavy-ion collisions at RHIC and the LHC. This multi-observable analysis extends the previously published JETSCAPE Bayesian Inference determination of $\hat{q}$, which was based solely on a selection of inclusive hadron suppression data. JETSCAPE is a modular framework incorporating detailed dynamical models of QGP formation and evolution, and jet propagation and interaction in the QGP. Virtuality-dependent partonic energy loss in the QGP is modeled as a thermalized weakly-coupled plasma, with parameters determined from Bayesian calibration using soft-sector observables. This Bayesian calibration of $\hat{q}$ utilizes Active Learning, a machine--learning approach, for efficient exploitation of computing resources. The experimental data included in this analysis span a broad range in collision energy and centrality, and in transverse momentum. In order to explore the systematic dependence of the extracted parameter posterior distributions, several different calibrations are reported, based on combined jet and hadron data; on jet or hadron data separately; and on restricted kinematic or centrality ranges of the jet and hadron data. Tension is observed in comparison of these variations, providing new insights into the physics of jet transport in the QGP and its theoretical formulation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2408.08247v2-abstract-full').style.display = 'none'; document.getElementById('2408.08247v2-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 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 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">20 pages, 10 figures, 2 tables, submitted to PRC; updated acknowledgements</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2407.08586">arXiv:2407.08586</a> <span> [<a href="https://arxiv.org/pdf/2407.08586">pdf</a>, <a href="https://arxiv.org/format/2407.08586">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"> Centrality dependence of L茅vy-stable two-pion Bose-Einstein correlations in $\sqrt{s_{_{NN}}}=200$ GeV Au$+$Au collisions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=PHENIX+Collaboration"> PHENIX Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdulameer%2C+N+J">N. J. Abdulameer</a>, <a href="/search/nucl-ex?searchtype=author&query=Acharya%2C+U">U. Acharya</a>, <a href="/search/nucl-ex?searchtype=author&query=Adare%2C+A">A. Adare</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Akimoto%2C+R">R. Akimoto</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Ta%27ani%2C+H">H. Al-Ta'ani</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+J">J. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-ex?searchtype=author&query=Apadula%2C+N">N. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&query=Aramaki%2C+Y">Y. Aramaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Asano%2C+H">H. Asano</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=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Awes%2C+T+C">T. C. Awes</a>, <a href="/search/nucl-ex?searchtype=author&query=Azmoun%2C+B">B. Azmoun</a>, <a href="/search/nucl-ex?searchtype=author&query=Babintsev%2C+V">V. Babintsev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+M">M. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bannier%2C+B">B. Bannier</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K+N">K. N. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bassalleck%2C+B">B. Bassalleck</a>, <a href="/search/nucl-ex?searchtype=author&query=Bathe%2C+S">S. Bathe</a> , et al. (377 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="2407.08586v1-abstract-short" style="display: inline;"> The PHENIX experiment measured the centrality dependence of two-pion Bose-Einstein correlation functions in $\sqrt{s_{_{NN}}}=200$~GeV Au$+$Au collisions at the Relativistic Heavy Ion Collider at Brookhaven National Laboratory. The data are well represented by L茅vy-stable source distributions. The extracted source parameters are the correlation-strength parameter $位$, the L茅vy index of stability… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.08586v1-abstract-full').style.display = 'inline'; document.getElementById('2407.08586v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2407.08586v1-abstract-full" style="display: none;"> The PHENIX experiment measured the centrality dependence of two-pion Bose-Einstein correlation functions in $\sqrt{s_{_{NN}}}=200$~GeV Au$+$Au collisions at the Relativistic Heavy Ion Collider at Brookhaven National Laboratory. The data are well represented by L茅vy-stable source distributions. The extracted source parameters are the correlation-strength parameter $位$, the L茅vy index of stability $伪$, and the L茅vy-scale parameter $R$ as a function of transverse mass $m_T$ and centrality. The $位(m_T)$ parameter is constant at larger values of $m_T$, but decreases as $m_T$ decreases. The L茅vy scale parameter $R(m_T)$ decreases with $m_T$ and exhibits proportionality to the length scale of the nuclear overlap region. The L茅vy exponent $伪(m_T)$ is independent of $m_T$ within uncertainties in each investigated centrality bin, but shows a clear centrality dependence. At all centralities, the L茅vy exponent $伪$ is significantly different from that of Gaussian ($伪=2$) or Cauchy ($伪=1$) source distributions. Comparisons to the predictions of Monte-Carlo simulations of resonance-decay chains show that in all but the most peripheral centrality class (50%-60%), the obtained results are inconsistent with the measurements, unless a significant reduction of the in-medium mass of the $畏'$ meson is included. In each centrality class, the best value of the in-medium $畏'$ mass is compared to the mass of the $畏$ meson, as well as to several theoretical predictions that consider restoration of $U_A(1)$ symmetry in hot hadronic matter. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.08586v1-abstract-full').style.display = 'none'; document.getElementById('2407.08586v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 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">401 authors from 75 institutions, 20 pages, 15 figures, 2 tables. v1 is version submitted to Physical Review C. HEPdata tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2406.12877">arXiv:2406.12877</a> <span> [<a href="https://arxiv.org/pdf/2406.12877">pdf</a>, <a href="https://arxiv.org/format/2406.12877">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Design of a SiPM-on-Tile ZDC for the future EIC and its Performance with Graph Neural Networks </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Milton%2C+R">Ryan Milton</a>, <a href="/search/nucl-ex?searchtype=author&query=Paul%2C+S+J">Sebouh J. Paul</a>, <a href="/search/nucl-ex?searchtype=author&query=Schmookler%2C+B">Barak Schmookler</a>, <a href="/search/nucl-ex?searchtype=author&query=Arratia%2C+M">Miguel Arratia</a>, <a href="/search/nucl-ex?searchtype=author&query=Karande%2C+P">Piyush Karande</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">Aaron Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Acosta%2C+F+T">Fernando Torales Acosta</a>, <a href="/search/nucl-ex?searchtype=author&query=Nachman%2C+B">Benjamin Nachman</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="2406.12877v1-abstract-short" style="display: inline;"> We present a design for a high-granularity zero-degree calorimeter (ZDC) for the upcoming Electron-Ion Collider (EIC). The design uses SiPM-on-tile technology and features a novel staggered-layer arrangement that improves spatial resolution. To fully leverage the design's high granularity and non-trivial geometry, we employ graph neural networks (GNNs) for energy and angle regression as well as si… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.12877v1-abstract-full').style.display = 'inline'; document.getElementById('2406.12877v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2406.12877v1-abstract-full" style="display: none;"> We present a design for a high-granularity zero-degree calorimeter (ZDC) for the upcoming Electron-Ion Collider (EIC). The design uses SiPM-on-tile technology and features a novel staggered-layer arrangement that improves spatial resolution. To fully leverage the design's high granularity and non-trivial geometry, we employ graph neural networks (GNNs) for energy and angle regression as well as signal classification. The GNN-boosted performance metrics meet, and in some cases, significantly surpass the requirements set in the EIC Yellow Report, laying the groundwork for enhanced measurements that will facilitate a wide physics program. Our studies show that GNNs can significantly enhance the performance of high-granularity CALICE-style calorimeters by automating and optimizing the software compensation algorithms required for these systems. This improvement holds true even in the case of complicated geometries that pose challenges for image-based AI/ML methods. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.12877v1-abstract-full').style.display = 'none'; document.getElementById('2406.12877v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">9 pages, 9 figures. Code and datasets included</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2401.04201">arXiv:2401.04201</a> <span> [<a href="https://arxiv.org/pdf/2401.04201">pdf</a>, <a href="https://arxiv.org/format/2401.04201">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="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"> Measuring jet quenching with a Bayesian inference analysis of hadron and jet data by JETSCAPE </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Ehlers%2C+R">R. Ehlers</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Arora%2C+R">R. Arora</a>, <a href="/search/nucl-ex?searchtype=author&query=Bass%2C+S+A">S. A. Bass</a>, <a href="/search/nucl-ex?searchtype=author&query=Cao%2C+S">S. Cao</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Du%2C+L">L. Du</a>, <a href="/search/nucl-ex?searchtype=author&query=Elfner%2C+H">H. Elfner</a>, <a href="/search/nucl-ex?searchtype=author&query=Fan%2C+W">W. Fan</a>, <a href="/search/nucl-ex?searchtype=author&query=Fries%2C+R+J">R. J. Fries</a>, <a href="/search/nucl-ex?searchtype=author&query=Gale%2C+C">C. Gale</a>, <a href="/search/nucl-ex?searchtype=author&query=He%2C+Y">Y. He</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinz%2C+U">U. Heinz</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacak%2C+B+V">B. V. Jacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacobs%2C+P+M">P. M. Jacobs</a>, <a href="/search/nucl-ex?searchtype=author&query=Jeon%2C+S">S. Jeon</a>, <a href="/search/nucl-ex?searchtype=author&query=Ji%2C+Y">Y. Ji</a>, <a href="/search/nucl-ex?searchtype=author&query=Kasper%2C+L">L. Kasper</a>, <a href="/search/nucl-ex?searchtype=author&query=Kordell%2C+M">M. Kordell II</a>, <a href="/search/nucl-ex?searchtype=author&query=Kumar%2C+A">A. Kumar</a>, <a href="/search/nucl-ex?searchtype=author&query=Kunnawalkam-Elayavalli%2C+R">R. Kunnawalkam-Elayavalli</a>, <a href="/search/nucl-ex?searchtype=author&query=Latessa%2C+J">J. Latessa</a>, <a href="/search/nucl-ex?searchtype=author&query=Lee%2C+S">S. Lee</a>, <a href="/search/nucl-ex?searchtype=author&query=Lee%2C+Y+-">Y. -J. Lee</a>, <a href="/search/nucl-ex?searchtype=author&query=Liyanage%2C+D">D. Liyanage</a> , et al. (28 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="2401.04201v1-abstract-short" style="display: inline;"> The JETSCAPE Collaboration reports the first multi-messenger study of the QGP jet transport parameter $\hat{q}$ using Bayesian inference, incorporating all available hadron and jet inclusive yield and jet substructure data from RHIC and the LHC. The theoretical model utilizes virtuality-dependent in-medium partonic energy loss coupled to a detailed dynamical model of QGP evolution. Tension is obse… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.04201v1-abstract-full').style.display = 'inline'; document.getElementById('2401.04201v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2401.04201v1-abstract-full" style="display: none;"> The JETSCAPE Collaboration reports the first multi-messenger study of the QGP jet transport parameter $\hat{q}$ using Bayesian inference, incorporating all available hadron and jet inclusive yield and jet substructure data from RHIC and the LHC. The theoretical model utilizes virtuality-dependent in-medium partonic energy loss coupled to a detailed dynamical model of QGP evolution. Tension is observed when constraining $\hat{q}$ for different kinematic cuts of the inclusive hadron data. The addition of substructure data is shown to improve the constraint on $\hat{q}$, without inducing tension with the constraint due to inclusive observables. These studies provide new insight into the mechanisms of jet interactions in matter, and point to next steps in the field for comprehensive understanding of jet quenching as a probe of the QGP. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.04201v1-abstract-full').style.display = 'none'; document.getElementById('2401.04201v1-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 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">4 pages, 2 figures. Proceedings of Quark Matter 2023 - XXXth International Conference on Ultra-relativistic Nucleus-Nucleus Collisions, Houston, TX, 3-9 September 2023</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2401.00402">arXiv:2401.00402</a> <span> [<a href="https://arxiv.org/pdf/2401.00402">pdf</a>, <a href="https://arxiv.org/format/2401.00402">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 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"> 3D Multi-system Bayesian Calibration with Energy Conservation to Study Rapidity-dependent Dynamics of Nuclear Collisions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Mankolli%2C+A">Andi Mankolli</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">Aaron Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Arora%2C+R">Ritu Arora</a>, <a href="/search/nucl-ex?searchtype=author&query=Bass%2C+S">Steffen Bass</a>, <a href="/search/nucl-ex?searchtype=author&query=Cao%2C+S">Shanshan Cao</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+Y">Yi Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Du%2C+L">Lipei Du</a>, <a href="/search/nucl-ex?searchtype=author&query=Ehlers%2C+R">Raymond Ehlers</a>, <a href="/search/nucl-ex?searchtype=author&query=Elfner%2C+H">Hannah Elfner</a>, <a href="/search/nucl-ex?searchtype=author&query=Fan%2C+W">Wenkai Fan</a>, <a href="/search/nucl-ex?searchtype=author&query=Fries%2C+R+J">Rainer J. Fries</a>, <a href="/search/nucl-ex?searchtype=author&query=Gale%2C+C">Charles Gale</a>, <a href="/search/nucl-ex?searchtype=author&query=He%2C+Y">Yayun He</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinz%2C+U">Ulrich Heinz</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacak%2C+B">Barbara Jacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacobs%2C+P">Peter Jacobs</a>, <a href="/search/nucl-ex?searchtype=author&query=Jeon%2C+S">Sangyong Jeon</a>, <a href="/search/nucl-ex?searchtype=author&query=Ji%2C+Y">Yi Ji</a>, <a href="/search/nucl-ex?searchtype=author&query=Kasper%2C+L">Lauren Kasper</a>, <a href="/search/nucl-ex?searchtype=author&query=Kordell%2C+M">Michael Kordell II</a>, <a href="/search/nucl-ex?searchtype=author&query=Kumar%2C+A">Amit Kumar</a>, <a href="/search/nucl-ex?searchtype=author&query=Kunnawalkam-Elayavalli%2C+R">R. Kunnawalkam-Elayavalli</a>, <a href="/search/nucl-ex?searchtype=author&query=Latessa%2C+J">Joseph Latessa</a>, <a href="/search/nucl-ex?searchtype=author&query=Lee%2C+S+H">Sook H. Lee</a>, <a href="/search/nucl-ex?searchtype=author&query=Lee%2C+Y">Yen-Jie Lee</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="2401.00402v1-abstract-short" style="display: inline;"> Considerable information about the early-stage dynamics of heavy-ion collisions is encoded in the rapidity dependence of measurements. To leverage the large amount of experimental data, we perform a systematic analysis using three-dimensional hydrodynamic simulations of multiple collision systems -- large and small, symmetric and asymmetric. Specifically, we perform fully 3D multi-stage hydrodynam… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.00402v1-abstract-full').style.display = 'inline'; document.getElementById('2401.00402v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2401.00402v1-abstract-full" style="display: none;"> Considerable information about the early-stage dynamics of heavy-ion collisions is encoded in the rapidity dependence of measurements. To leverage the large amount of experimental data, we perform a systematic analysis using three-dimensional hydrodynamic simulations of multiple collision systems -- large and small, symmetric and asymmetric. Specifically, we perform fully 3D multi-stage hydrodynamic simulations initialized by a parameterized model for rapidity-dependent energy deposition, which we calibrate on the hadron multiplicity and anisotropic flow coefficients. We utilize Bayesian inference to constrain properties of the early- and late- time dynamics of the system, and highlight the impact of enforcing global energy conservation in our 3D model. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.00402v1-abstract-full').style.display = 'none'; document.getElementById('2401.00402v1-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 December, 2023; <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/2310.20631">arXiv:2310.20631</a> <span> [<a href="https://arxiv.org/pdf/2310.20631">pdf</a>, <a href="https://arxiv.org/format/2310.20631">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="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"> Hybrid Hadronization of Jet Showers from $e^++e^-$ to $A+A$ with JETSCAPE </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Parker%2C+C">Cameron Parker</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">Aaron Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Arora%2C+R">Ritu Arora</a>, <a href="/search/nucl-ex?searchtype=author&query=Bass%2C+S">Steffen Bass</a>, <a href="/search/nucl-ex?searchtype=author&query=Cao%2C+S">Shanshan Cao</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+Y">Yi Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Ehlers%2C+R">Raymond Ehlers</a>, <a href="/search/nucl-ex?searchtype=author&query=Elfner%2C+H">Hannah Elfner</a>, <a href="/search/nucl-ex?searchtype=author&query=Fan%2C+W">Wenkai Fan</a>, <a href="/search/nucl-ex?searchtype=author&query=Fries%2C+R+J">Rainer J. Fries</a>, <a href="/search/nucl-ex?searchtype=author&query=Gale%2C+C">Charles Gale</a>, <a href="/search/nucl-ex?searchtype=author&query=He%2C+Y">Yayun He</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinz%2C+U">Ulrich Heinz</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacak%2C+B">Barbara Jacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacobs%2C+P">Peter Jacobs</a>, <a href="/search/nucl-ex?searchtype=author&query=Jeon%2C+S">Sangyong Jeon</a>, <a href="/search/nucl-ex?searchtype=author&query=Ji%2C+Y">Yi Ji</a>, <a href="/search/nucl-ex?searchtype=author&query=Kasper%2C+L">Lauren Kasper</a>, <a href="/search/nucl-ex?searchtype=author&query=Kordell%2C+M">Michael Kordell II</a>, <a href="/search/nucl-ex?searchtype=author&query=Kumar%2C+A">Amit Kumar</a>, <a href="/search/nucl-ex?searchtype=author&query=Latessa%2C+J">Joseph Latessa</a>, <a href="/search/nucl-ex?searchtype=author&query=Lee%2C+Y">Yen-Jie Lee</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemmon%2C+R">Roy Lemmon</a>, <a href="/search/nucl-ex?searchtype=author&query=Liyanage%2C+D">Dananjaya Liyanage</a>, <a href="/search/nucl-ex?searchtype=author&query=Lopez%2C+A">Arthur Lopez</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="2310.20631v3-abstract-short" style="display: inline;"> In this talk we review jet production in a large variety of collision systems using the JETSCAPE event generator and Hybrid Hadronization. Hybrid Hadronization combines quark recombination, applicable when distances between partons in phase space are small, and string fragmentation appropriate for dilute parton systems. It can therefore smoothly describe the transition from very dilute parton syst… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.20631v3-abstract-full').style.display = 'inline'; document.getElementById('2310.20631v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2310.20631v3-abstract-full" style="display: none;"> In this talk we review jet production in a large variety of collision systems using the JETSCAPE event generator and Hybrid Hadronization. Hybrid Hadronization combines quark recombination, applicable when distances between partons in phase space are small, and string fragmentation appropriate for dilute parton systems. It can therefore smoothly describe the transition from very dilute parton systems like $e^++e^-$ to full $A+A$ collisions. We test this picture by using JETSCAPE to generate jets in various systems. Comparison to experimental data in $e^++e^-$ and $p+p$ collisions allows for a precise tuning of vacuum baseline parameters in JETSCAPE and Hybrid Hadronization. Proceeding to systems with jets embedded in a medium, we study in-medium hadronization for jet showers. We quantify the effects of an ambient medium, focusing in particular on the dependence on the collective flow and size of the medium. Our results clarify the effects we expect from in-medium hadronization of jets on observables like fragmentation functions, hadron chemistry and jet shape. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.20631v3-abstract-full').style.display = 'none'; document.getElementById('2310.20631v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 7 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 31 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">6 pages, 4 figures, Hard Probes 2023 conference, accepted for publication in Proceedings of Science: version 2, references added, typos fixed</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2310.04442">arXiv:2310.04442</a> <span> [<a href="https://arxiv.org/pdf/2310.04442">pdf</a>, <a href="https://arxiv.org/format/2310.04442">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Machine Learning">cs.LG</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="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"> The Optimal use of Segmentation for Sampling Calorimeters </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Acosta%2C+F+T">Fernando Torales Acosta</a>, <a href="/search/nucl-ex?searchtype=author&query=Karki%2C+B">Bishnu Karki</a>, <a href="/search/nucl-ex?searchtype=author&query=Karande%2C+P">Piyush Karande</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">Aaron Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Arratia%2C+M">Miguel Arratia</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K">Kenneth Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Milton%2C+R">Ryan Milton</a>, <a href="/search/nucl-ex?searchtype=author&query=Mor%C3%A1n%2C+S">Sebasti谩n Mor谩n</a>, <a href="/search/nucl-ex?searchtype=author&query=Nachman%2C+B">Benjamin Nachman</a>, <a href="/search/nucl-ex?searchtype=author&query=Sinha%2C+A">Anshuman Sinha</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="2310.04442v1-abstract-short" style="display: inline;"> One of the key design choices of any sampling calorimeter is how fine to make the longitudinal and transverse segmentation. To inform this choice, we study the impact of calorimeter segmentation on energy reconstruction. To ensure that the trends are due entirely to hardware and not to a sub-optimal use of segmentation, we deploy deep neural networks to perform the reconstruction. These networks m… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.04442v1-abstract-full').style.display = 'inline'; document.getElementById('2310.04442v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2310.04442v1-abstract-full" style="display: none;"> One of the key design choices of any sampling calorimeter is how fine to make the longitudinal and transverse segmentation. To inform this choice, we study the impact of calorimeter segmentation on energy reconstruction. To ensure that the trends are due entirely to hardware and not to a sub-optimal use of segmentation, we deploy deep neural networks to perform the reconstruction. These networks make use of all available information by representing the calorimeter as a point cloud. To demonstrate our approach, we simulate a detector similar to the forward calorimeter system intended for use in the ePIC detector, which will operate at the upcoming Electron Ion Collider. We find that for the energy estimation of isolated charged pion showers, relatively fine longitudinal segmentation is key to achieving an energy resolution that is better than 10% across the full phase space. These results provide a valuable benchmark for ongoing EIC detector optimizations and may also inform future studies involving high-granularity calorimeters in other experiments at various facilities. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.04442v1-abstract-full').style.display = 'none'; document.getElementById('2310.04442v1-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 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/2308.02650">arXiv:2308.02650</a> <span> [<a href="https://arxiv.org/pdf/2308.02650">pdf</a>, <a href="https://arxiv.org/format/2308.02650">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> </div> <p class="title is-5 mathjax"> A multistage framework for studying the evolution of jets and high-$p_T$ probes in small collision systems </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Majumder%2C+A">Abhijit Majumder</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">Aaron Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Arora%2C+R">Ritu Arora</a>, <a href="/search/nucl-ex?searchtype=author&query=Bass%2C+S">Steffen Bass</a>, <a href="/search/nucl-ex?searchtype=author&query=Cao%2C+S">Shanshan Cao</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+Y">Yi Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Ehlers%2C+R">Raymond Ehlers</a>, <a href="/search/nucl-ex?searchtype=author&query=Elfner%2C+H">Hannah Elfner</a>, <a href="/search/nucl-ex?searchtype=author&query=Fan%2C+W">Wenkai Fan</a>, <a href="/search/nucl-ex?searchtype=author&query=Fries%2C+R+J">Rainer J. Fries</a>, <a href="/search/nucl-ex?searchtype=author&query=Gale%2C+C">Charles Gale</a>, <a href="/search/nucl-ex?searchtype=author&query=He%2C+Y">Yayun He</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinz%2C+U">Ulrich Heinz</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacak%2C+B">Barbara Jacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacobs%2C+P">Peter Jacobs</a>, <a href="/search/nucl-ex?searchtype=author&query=Jeon%2C+S">Sangyong Jeon</a>, <a href="/search/nucl-ex?searchtype=author&query=Ji%2C+Y">Yi Ji</a>, <a href="/search/nucl-ex?searchtype=author&query=Kasper%2C+L">Lauren Kasper</a>, <a href="/search/nucl-ex?searchtype=author&query=Kordell%2C+M">Michael Kordell II</a>, <a href="/search/nucl-ex?searchtype=author&query=Kumar%2C+A">Amit Kumar</a>, <a href="/search/nucl-ex?searchtype=author&query=Latessa%2C+J">Joseph Latessa</a>, <a href="/search/nucl-ex?searchtype=author&query=Lee%2C+Y">Yen-Jie Lee</a>, <a href="/search/nucl-ex?searchtype=author&query=Lemmon%2C+R">Roy Lemmon</a>, <a href="/search/nucl-ex?searchtype=author&query=Liyanage%2C+D">Dananjaya Liyanage</a>, <a href="/search/nucl-ex?searchtype=author&query=Lopez%2C+A">Arthur Lopez</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="2308.02650v2-abstract-short" style="display: inline;"> Understanding the modification of jets and high-$p_T$ probes in small systems requires the integration of soft and hard physics. We present recent developments in extending the JETSCAPE framework to build an event generator, which includes correlations between soft and hard partons, to study jet observables in small systems. The multi-scale physics of the collision is separated into different stag… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2308.02650v2-abstract-full').style.display = 'inline'; document.getElementById('2308.02650v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2308.02650v2-abstract-full" style="display: none;"> Understanding the modification of jets and high-$p_T$ probes in small systems requires the integration of soft and hard physics. We present recent developments in extending the JETSCAPE framework to build an event generator, which includes correlations between soft and hard partons, to study jet observables in small systems. The multi-scale physics of the collision is separated into different stages. Hard scatterings are first sampled at binary collision positions provided by the Glauber geometry. They are then propagated backward in space-time following an initial-state shower to obtain the initiating partons' energies and momenta before the collision. These energies and momenta are then subtracted from the incoming colliding nucleons for soft-particle production, modeled by the 3D-Glauber + hydrodynamics + hadronic transport framework. This new hybrid approach (X-SCAPE) includes non-trivial correlations between jet and soft particle productions in small systems. We calibrate this framework with the final state hadrons' $p_T$-spectra from low to high $p_T$ in $p$-$p$, and and then compare with the spectra in $p$-$Pb$ collisions from the LHC. We also present results for additional observables such as the distributions of event activity as a function of the hardest jet $p_T$ in forward and mid-rapidity for both $p$-$p$ and $p$-$Pb$ collisions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2308.02650v2-abstract-full').style.display = 'none'; document.getElementById('2308.02650v2-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 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 4 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">6 pages, 6 figures, Proceedings of Hard Probes 2023, 26-31 March 2023 Aschaffenburg, Germany</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Proceedings of Science (Hard Probes 2023) 2023 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2307.09641">arXiv:2307.09641</a> <span> [<a href="https://arxiv.org/pdf/2307.09641">pdf</a>, <a href="https://arxiv.org/format/2307.09641">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> </div> <p class="title is-5 mathjax"> A new metric improving Bayesian calibration of a multistage approach studying hadron and inclusive jet suppression </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Fan%2C+W">W. Fan</a>, <a href="/search/nucl-ex?searchtype=author&query=Vujanovic%2C+G">G. Vujanovic</a>, <a href="/search/nucl-ex?searchtype=author&query=Bass%2C+S+A">S. A. Bass</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Arora%2C+R">R. Arora</a>, <a href="/search/nucl-ex?searchtype=author&query=Cao%2C+S">S. Cao</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Dai%2C+T">T. Dai</a>, <a href="/search/nucl-ex?searchtype=author&query=Du%2C+L">L. Du</a>, <a href="/search/nucl-ex?searchtype=author&query=Ehlers%2C+R">R. Ehlers</a>, <a href="/search/nucl-ex?searchtype=author&query=Elfner%2C+H">H. Elfner</a>, <a href="/search/nucl-ex?searchtype=author&query=Fries%2C+R+J">R. J. Fries</a>, <a href="/search/nucl-ex?searchtype=author&query=Gale%2C+C">C. Gale</a>, <a href="/search/nucl-ex?searchtype=author&query=He%2C+Y">Y. He</a>, <a href="/search/nucl-ex?searchtype=author&query=Heffernan%2C+M">M. Heffernan</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinz%2C+U">U. Heinz</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacak%2C+B+V">B. V. Jacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacobs%2C+P+M">P. M. Jacobs</a>, <a href="/search/nucl-ex?searchtype=author&query=Jeon%2C+S">S. Jeon</a>, <a href="/search/nucl-ex?searchtype=author&query=Ji%2C+Y">Y. Ji</a>, <a href="/search/nucl-ex?searchtype=author&query=Kasper%2C+L">L. Kasper</a>, <a href="/search/nucl-ex?searchtype=author&query=Kordell%2C+M">M. Kordell II</a>, <a href="/search/nucl-ex?searchtype=author&query=Kumar%2C+A">A. Kumar</a>, <a href="/search/nucl-ex?searchtype=author&query=Latessa%2C+J">J. Latessa</a>, <a href="/search/nucl-ex?searchtype=author&query=Lee%2C+Y+-">Y. -J. Lee</a> , et al. (30 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="2307.09641v2-abstract-short" style="display: inline;"> We study parton energy-momentum exchange with the quark gluon plasma (QGP) within a multistage approach composed of in-medium DGLAP evolution at high virtuality, and (linearized) Boltzmann Transport formalism at lower virtuality. This multistage simulation is then calibrated in comparison with high $p_T$ charged hadrons, D-mesons, and the inclusive jet nuclear modification factors, using Bayesian… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.09641v2-abstract-full').style.display = 'inline'; document.getElementById('2307.09641v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2307.09641v2-abstract-full" style="display: none;"> We study parton energy-momentum exchange with the quark gluon plasma (QGP) within a multistage approach composed of in-medium DGLAP evolution at high virtuality, and (linearized) Boltzmann Transport formalism at lower virtuality. This multistage simulation is then calibrated in comparison with high $p_T$ charged hadrons, D-mesons, and the inclusive jet nuclear modification factors, using Bayesian model-to-data comparison, to extract the virtuality-dependent transverse momentum broadening transport coefficient $\hat{q}$. To facilitate this undertaking, we develop a quantitative metric for validating the Bayesian workflow, which is used to analyze the sensitivity of various model parameters to individual observables. The usefulness of this new metric in improving Bayesian model emulation is shown to be highly beneficial for future such analyses. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.09641v2-abstract-full').style.display = 'none'; document.getElementById('2307.09641v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 October, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 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">24 pages, 16 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/2307.09640">arXiv:2307.09640</a> <span> [<a href="https://arxiv.org/pdf/2307.09640">pdf</a>, <a href="https://arxiv.org/format/2307.09640">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="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"> Multiscale evolution of heavy flavor in the QGP </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Vujanovic%2C+G">G. Vujanovic</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Arora%2C+R">R. Arora</a>, <a href="/search/nucl-ex?searchtype=author&query=Bass%2C+S+A">S. A. Bass</a>, <a href="/search/nucl-ex?searchtype=author&query=Cao%2C+S">S. Cao</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Dai%2C+T">T. Dai</a>, <a href="/search/nucl-ex?searchtype=author&query=Du%2C+L">L. Du</a>, <a href="/search/nucl-ex?searchtype=author&query=Ehlers%2C+R">R. Ehlers</a>, <a href="/search/nucl-ex?searchtype=author&query=Elfner%2C+H">H. Elfner</a>, <a href="/search/nucl-ex?searchtype=author&query=Fan%2C+W">W. Fan</a>, <a href="/search/nucl-ex?searchtype=author&query=Fries%2C+R+J">R. J. Fries</a>, <a href="/search/nucl-ex?searchtype=author&query=Gale%2C+C">C. Gale</a>, <a href="/search/nucl-ex?searchtype=author&query=He%2C+Y">Y. He</a>, <a href="/search/nucl-ex?searchtype=author&query=Heffernan%2C+M">M. Heffernan</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinz%2C+U">U. Heinz</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacak%2C+B+V">B. V. Jacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacobs%2C+P+M">P. M. Jacobs</a>, <a href="/search/nucl-ex?searchtype=author&query=Jeon%2C+S">S. Jeon</a>, <a href="/search/nucl-ex?searchtype=author&query=Ji%2C+Y">Y. Ji</a>, <a href="/search/nucl-ex?searchtype=author&query=Kasper%2C+L">L. Kasper</a>, <a href="/search/nucl-ex?searchtype=author&query=Kordell%2C+M">M. Kordell II</a>, <a href="/search/nucl-ex?searchtype=author&query=Kumar%2C+A">A. Kumar</a>, <a href="/search/nucl-ex?searchtype=author&query=Latessa%2C+J">J. Latessa</a>, <a href="/search/nucl-ex?searchtype=author&query=Lee%2C+Y+-">Y. -J. Lee</a> , et al. (30 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="2307.09640v2-abstract-short" style="display: inline;"> Shower development dynamics for a jet traveling through the quark-gluon plasma (QGP) is a multiscale process, where the heavy flavor mass is an important scale. During the high virtuality portion of the jet evolution in the QGP, emission of gluons from a heavy flavor is modified owing to heavy quark mass. Medium-induced radiation of heavy flavor is sensitive to microscopic processes (e.g. diffusio… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.09640v2-abstract-full').style.display = 'inline'; document.getElementById('2307.09640v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2307.09640v2-abstract-full" style="display: none;"> Shower development dynamics for a jet traveling through the quark-gluon plasma (QGP) is a multiscale process, where the heavy flavor mass is an important scale. During the high virtuality portion of the jet evolution in the QGP, emission of gluons from a heavy flavor is modified owing to heavy quark mass. Medium-induced radiation of heavy flavor is sensitive to microscopic processes (e.g. diffusion), whose virtuality dependence is phenomenologically explored in this study. In the lower virtuality part of shower evolution, i.e. when the mass is comparable to the virtuality of the parton, scattering and radiation processes of heavy quarks differ from light quarks. The effects of these mechanisms on shower development in heavy flavor tagged showers in the QGP is explored here. Furthermore, this multiscale study examines dynamical pair production of heavy flavor (via virtual gluon splittings) and their subsequent evolution in the QGP, which is not possible otherwise. A realistic event-by-event simulation is performed using the JETSCAPE framework. Energy-momentum exchange with the medium proceeds using a weak coupling recoil approach. Using leading hadron and open heavy flavor observables, differences in heavy versus light quark energy-loss mechanisms are explored, while the importance of heavy flavor pair production is highlighted along with future directions to study. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.09640v2-abstract-full').style.display = 'none'; document.getElementById('2307.09640v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 October, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 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">6 pages, 3 figures, contribution to the Hard Probes 2023 proceedings</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2307.08125">arXiv:2307.08125</a> <span> [<a href="https://arxiv.org/pdf/2307.08125">pdf</a>, <a href="https://arxiv.org/format/2307.08125">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> </div> <p class="title is-5 mathjax"> Effects of multi-scale jet-medium interactions on jet substructures </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=JETSCAPE+Collaboration"> JETSCAPE Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Tachibana%2C+Y">Y. Tachibana</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Arora%2C+R">R. Arora</a>, <a href="/search/nucl-ex?searchtype=author&query=Bass%2C+S+A">S. A. Bass</a>, <a href="/search/nucl-ex?searchtype=author&query=Cao%2C+S">S. Cao</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Dai%2C+T">T. Dai</a>, <a href="/search/nucl-ex?searchtype=author&query=Du%2C+L">L. Du</a>, <a href="/search/nucl-ex?searchtype=author&query=Ehlers%2C+R">R. Ehlers</a>, <a href="/search/nucl-ex?searchtype=author&query=Elfner%2C+H">H. Elfner</a>, <a href="/search/nucl-ex?searchtype=author&query=Fan%2C+W">W. Fan</a>, <a href="/search/nucl-ex?searchtype=author&query=Fries%2C+R+J">R. J. Fries</a>, <a href="/search/nucl-ex?searchtype=author&query=Gale%2C+C">C. Gale</a>, <a href="/search/nucl-ex?searchtype=author&query=He%2C+Y">Y. He</a>, <a href="/search/nucl-ex?searchtype=author&query=Heffernan%2C+M">M. Heffernan</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinz%2C+U">U. Heinz</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacak%2C+B+V">B. V. Jacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacobs%2C+P+M">P. M. Jacobs</a>, <a href="/search/nucl-ex?searchtype=author&query=Jeon%2C+S">S. Jeon</a>, <a href="/search/nucl-ex?searchtype=author&query=Ji%2C+Y">Y. Ji</a>, <a href="/search/nucl-ex?searchtype=author&query=Kauder%2C+K">K. Kauder</a>, <a href="/search/nucl-ex?searchtype=author&query=Kasper%2C+L">L. Kasper</a>, <a href="/search/nucl-ex?searchtype=author&query=Ke%2C+W">W. Ke</a>, <a href="/search/nucl-ex?searchtype=author&query=Kelsey%2C+M">M. Kelsey</a> , et al. (35 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2307.08125v1-abstract-short" style="display: inline;"> We utilize event-by-event Monte Carlo simulations within the JETSCAPE framework to examine scale-dependent jet-medium interactions in heavy-ion collisions. The reduction in jet-medium interaction during the early high-virtuality stage, where the medium is resolved at a short distance scale, is emphasized as a key element in explaining multiple jet observables, particularly substructures, simultane… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.08125v1-abstract-full').style.display = 'inline'; document.getElementById('2307.08125v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2307.08125v1-abstract-full" style="display: none;"> We utilize event-by-event Monte Carlo simulations within the JETSCAPE framework to examine scale-dependent jet-medium interactions in heavy-ion collisions. The reduction in jet-medium interaction during the early high-virtuality stage, where the medium is resolved at a short distance scale, is emphasized as a key element in explaining multiple jet observables, particularly substructures, simultaneously. By employing the MATTER+LBT setup, which incorporates this explicit reduction of medium effects at high virtuality, we investigate jet substructure observables, such as Soft Drop groomed observables. When contrasted with existing data, our findings spotlight the significant influence of the reduction at the early high-virtuality stages. Furthermore, we study the substructure of gamma-tagged jets, providing predictive insights for future experimental analyses. This broadens our understanding of the various contributing factors involved in modifying jet substructures. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.08125v1-abstract-full').style.display = 'none'; document.getElementById('2307.08125v1-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 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">6 pages, 4 figures, contribution to the Hard Probes 2023 proceedings</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2307.04780">arXiv:2307.04780</a> <span> [<a href="https://arxiv.org/pdf/2307.04780">pdf</a>, <a href="https://arxiv.org/format/2307.04780">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Machine Learning">cs.LG</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="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="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Comparison of Point Cloud and Image-based Models for Calorimeter Fast Simulation </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Acosta%2C+F+T">Fernando Torales Acosta</a>, <a href="/search/nucl-ex?searchtype=author&query=Mikuni%2C+V">Vinicius Mikuni</a>, <a href="/search/nucl-ex?searchtype=author&query=Nachman%2C+B">Benjamin Nachman</a>, <a href="/search/nucl-ex?searchtype=author&query=Arratia%2C+M">Miguel Arratia</a>, <a href="/search/nucl-ex?searchtype=author&query=Karki%2C+B">Bishnu Karki</a>, <a href="/search/nucl-ex?searchtype=author&query=Milton%2C+R">Ryan Milton</a>, <a href="/search/nucl-ex?searchtype=author&query=Karande%2C+P">Piyush Karande</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">Aaron Angerami</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2307.04780v2-abstract-short" style="display: inline;"> Score based generative models are a new class of generative models that have been shown to accurately generate high dimensional calorimeter datasets. Recent advances in generative models have used images with 3D voxels to represent and model complex calorimeter showers. Point clouds, however, are likely a more natural representation of calorimeter showers, particularly in calorimeters with high gr… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.04780v2-abstract-full').style.display = 'inline'; document.getElementById('2307.04780v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2307.04780v2-abstract-full" style="display: none;"> Score based generative models are a new class of generative models that have been shown to accurately generate high dimensional calorimeter datasets. Recent advances in generative models have used images with 3D voxels to represent and model complex calorimeter showers. Point clouds, however, are likely a more natural representation of calorimeter showers, particularly in calorimeters with high granularity. Point clouds preserve all of the information of the original simulation, more naturally deal with sparse datasets, and can be implemented with more compact models and data files. In this work, two state-of-the-art score based models are trained on the same set of calorimeter simulation and directly compared. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.04780v2-abstract-full').style.display = 'none'; document.getElementById('2307.04780v2-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 July, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 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">11 pages, 6 figures, 1 table</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2301.02485">arXiv:2301.02485</a> <span> [<a href="https://arxiv.org/pdf/2301.02485">pdf</a>, <a href="https://arxiv.org/format/2301.02485">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.110.044907">10.1103/PhysRevC.110.044907 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Hard jet substructure in a multistage approach </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Tachibana%2C+Y">Y. Tachibana</a>, <a href="/search/nucl-ex?searchtype=author&query=Kumar%2C+A">A. Kumar</a>, <a href="/search/nucl-ex?searchtype=author&query=Majumder%2C+A">A. Majumder</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Arora%2C+R">R. Arora</a>, <a href="/search/nucl-ex?searchtype=author&query=Bass%2C+S+A">S. A. Bass</a>, <a href="/search/nucl-ex?searchtype=author&query=Cao%2C+S">S. Cao</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Dai%2C+T">T. Dai</a>, <a href="/search/nucl-ex?searchtype=author&query=Du%2C+L">L. Du</a>, <a href="/search/nucl-ex?searchtype=author&query=Ehlers%2C+R">R. Ehlers</a>, <a href="/search/nucl-ex?searchtype=author&query=Elfner%2C+H">H. Elfner</a>, <a href="/search/nucl-ex?searchtype=author&query=Fan%2C+W">W. Fan</a>, <a href="/search/nucl-ex?searchtype=author&query=Fries%2C+R+J">R. J. Fries</a>, <a href="/search/nucl-ex?searchtype=author&query=Gale%2C+C">C. Gale</a>, <a href="/search/nucl-ex?searchtype=author&query=He%2C+Y">Y. He</a>, <a href="/search/nucl-ex?searchtype=author&query=Heffernan%2C+M">M. Heffernan</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinz%2C+U">U. Heinz</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacak%2C+B+V">B. V. Jacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacobs%2C+P+M">P. M. Jacobs</a>, <a href="/search/nucl-ex?searchtype=author&query=Jeon%2C+S">S. Jeon</a>, <a href="/search/nucl-ex?searchtype=author&query=Ji%2C+Y">Y. Ji</a>, <a href="/search/nucl-ex?searchtype=author&query=Kauder%2C+K">K. Kauder</a>, <a href="/search/nucl-ex?searchtype=author&query=Kasper%2C+L">L. Kasper</a>, <a href="/search/nucl-ex?searchtype=author&query=Ke%2C+W">W. Ke</a> , et al. (34 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="2301.02485v2-abstract-short" style="display: inline;"> We present predictions and postdictions for a wide variety of hard jet-substructure observables using a multistage model within the JETSCAPE framework. The details of the multistage model and the various parameter choices are described in [A. Kumar et al., arXiv:2204.01163]. A novel feature of this model is the presence of two stages of jet modification: a high virtuality phase [modeled using the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2301.02485v2-abstract-full').style.display = 'inline'; document.getElementById('2301.02485v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2301.02485v2-abstract-full" style="display: none;"> We present predictions and postdictions for a wide variety of hard jet-substructure observables using a multistage model within the JETSCAPE framework. The details of the multistage model and the various parameter choices are described in [A. Kumar et al., arXiv:2204.01163]. A novel feature of this model is the presence of two stages of jet modification: a high virtuality phase [modeled using the modular all twist transverse-scattering elastic-drag and radiation model (MATTER)], where modified coherence effects diminish medium-induced radiation, and a lower virtuality phase [modeled using the linear Boltzmann transport model (LBT)], where parton splits are fully resolved by the medium as they endure multiple scattering induced energy loss. Energy-loss calculations are carried out on event-by-event viscous fluid dynamic backgrounds constrained by experimental data. The uniform and consistent descriptions of multiple experimental observables demonstrate the essential role of modified coherence effects and the multistage modeling of jet evolution. Using the best choice of parameters from [A. Kumar et al., arXiv:2204.01163], and with no further tuning, we present calculations for the medium modified jet fragmentation function, the groomed jet momentum fraction $z_g$ and angular separation $r_g$ distributions, as well as the nuclear modification factor of groomed jets. These calculations provide accurate descriptions of published data from experiments at the Large Hadron Collider. Furthermore, we provide predictions from the multistage model for future measurements at the BNL Relativistic Heavy Ion Collider. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2301.02485v2-abstract-full').style.display = 'none'; document.getElementById('2301.02485v2-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 6 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">20 pages, 12 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, 044907 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2210.09048">arXiv:2210.09048</a> <span> [<a href="https://arxiv.org/pdf/2210.09048">pdf</a>, <a href="https://arxiv.org/format/2210.09048">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> ATHENA Detector Proposal -- A Totally Hermetic Electron Nucleus Apparatus proposed for IP6 at the Electron-Ion Collider </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=ATHENA+Collaboration"> ATHENA Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">J. Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Agrawal%2C+N">N. Agrawal</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Akers%2C+W">W. Akers</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+M">M. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Allen%2C+M+M">M. M. Allen</a>, <a href="/search/nucl-ex?searchtype=author&query=Ameli%2C+F">F. Ameli</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Antonioli%2C+P">P. Antonioli</a>, <a href="/search/nucl-ex?searchtype=author&query=Apadula%2C+N+J">N. J. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&query=Aprahamian%2C+A">A. Aprahamian</a>, <a href="/search/nucl-ex?searchtype=author&query=Armstrong%2C+W">W. Armstrong</a>, <a href="/search/nucl-ex?searchtype=author&query=Arratia%2C+M">M. Arratia</a>, <a href="/search/nucl-ex?searchtype=author&query=Arrington%2C+J+R">J. R. Arrington</a>, <a href="/search/nucl-ex?searchtype=author&query=Asaturyan%2C+A">A. Asaturyan</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E+C">E. C. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Augsten%2C+K">K. Augsten</a>, <a href="/search/nucl-ex?searchtype=author&query=Aune%2C+S">S. Aune</a>, <a href="/search/nucl-ex?searchtype=author&query=Bailey%2C+K">K. Bailey</a>, <a href="/search/nucl-ex?searchtype=author&query=Baldanza%2C+C">C. Baldanza</a>, <a href="/search/nucl-ex?searchtype=author&query=Bansal%2C+M">M. Bansal</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbosa%2C+F">F. Barbosa</a>, <a href="/search/nucl-ex?searchtype=author&query=Barion%2C+L">L. Barion</a> , et al. (415 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="2210.09048v1-abstract-short" style="display: inline;"> ATHENA has been designed as a general purpose detector capable of delivering the full scientific scope of the Electron-Ion Collider. Careful technology choices provide fine tracking and momentum resolution, high performance electromagnetic and hadronic calorimetry, hadron identification over a wide kinematic range, and near-complete hermeticity. This article describes the detector design and its e… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2210.09048v1-abstract-full').style.display = 'inline'; document.getElementById('2210.09048v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2210.09048v1-abstract-full" style="display: none;"> ATHENA has been designed as a general purpose detector capable of delivering the full scientific scope of the Electron-Ion Collider. Careful technology choices provide fine tracking and momentum resolution, high performance electromagnetic and hadronic calorimetry, hadron identification over a wide kinematic range, and near-complete hermeticity. This article describes the detector design and its expected performance in the most relevant physics channels. It includes an evaluation of detector technology choices, the technical challenges to realizing the detector and the R&D required to meet those challenges. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2210.09048v1-abstract-full').style.display = 'none'; document.getElementById('2210.09048v1-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 October, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JINST 17 (2022) 10, P10019 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2208.07950">arXiv:2208.07950</a> <span> [<a href="https://arxiv.org/pdf/2208.07950">pdf</a>, <a href="https://arxiv.org/format/2208.07950">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="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"> Bayesian analysis of QGP jet transport using multi-scale modeling applied to inclusive hadron and reconstructed jet data </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Ehlers%2C+R">R. Ehlers</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Arora%2C+R">R. Arora</a>, <a href="/search/nucl-ex?searchtype=author&query=Bass%2C+S+A">S. A. Bass</a>, <a href="/search/nucl-ex?searchtype=author&query=Cao%2C+S">S. Cao</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Du%2C+L">L. Du</a>, <a href="/search/nucl-ex?searchtype=author&query=Dai%2C+T">T. Dai</a>, <a href="/search/nucl-ex?searchtype=author&query=Elfner%2C+H">H. Elfner</a>, <a href="/search/nucl-ex?searchtype=author&query=Fan%2C+W">W. Fan</a>, <a href="/search/nucl-ex?searchtype=author&query=Fries%2C+R+J">R. J. Fries</a>, <a href="/search/nucl-ex?searchtype=author&query=Gale%2C+C">C. Gale</a>, <a href="/search/nucl-ex?searchtype=author&query=He%2C+Y">Y. He</a>, <a href="/search/nucl-ex?searchtype=author&query=Heffernan%2C+M">M. Heffernan</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinz%2C+U">U. Heinz</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacak%2C+B+V">B. V. Jacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacobs%2C+P+M">P. M. Jacobs</a>, <a href="/search/nucl-ex?searchtype=author&query=Jeon%2C+S">S. Jeon</a>, <a href="/search/nucl-ex?searchtype=author&query=Ji%2C+Y">Y. Ji</a>, <a href="/search/nucl-ex?searchtype=author&query=Kasper%2C+L">L. Kasper</a>, <a href="/search/nucl-ex?searchtype=author&query=Ke%2C+W">W. Ke</a>, <a href="/search/nucl-ex?searchtype=author&query=Kelsey%2C+M">M. Kelsey</a>, <a href="/search/nucl-ex?searchtype=author&query=Kordell%2C+M">M. Kordell II</a>, <a href="/search/nucl-ex?searchtype=author&query=Kumar%2C+A">A. Kumar</a>, <a href="/search/nucl-ex?searchtype=author&query=Latessa%2C+J">J. Latessa</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="2208.07950v1-abstract-short" style="display: inline;"> The JETSCAPE Collaboration reports a new determination of jet transport coefficients in the Quark-Gluon Plasma, using both reconstructed jet and hadron data measured at RHIC and the LHC. The JETSCAPE framework incorporates detailed modeling of the dynamical evolution of the QGP; a multi-stage theoretical approach to in-medium jet evolution and medium response; and Bayesian inference for quantitati… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2208.07950v1-abstract-full').style.display = 'inline'; document.getElementById('2208.07950v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2208.07950v1-abstract-full" style="display: none;"> The JETSCAPE Collaboration reports a new determination of jet transport coefficients in the Quark-Gluon Plasma, using both reconstructed jet and hadron data measured at RHIC and the LHC. The JETSCAPE framework incorporates detailed modeling of the dynamical evolution of the QGP; a multi-stage theoretical approach to in-medium jet evolution and medium response; and Bayesian inference for quantitative comparison of model calculations and data. The multi-stage framework incorporates multiple models to cover a broad range in scale of the in-medium parton shower evolution, with dynamical choice of model that depends on the current virtuality or energy of the parton. We will discuss the physics of the multi-stage modeling, and then present a new Bayesian analysis incorporating it. This analysis extends the recently published JETSCAPE determination of the jet transport parameter $\hat{q}$ that was based solely on inclusive hadron suppression data, by incorporating reconstructed jet measurements of quenching. We explore the functional dependence of jet transport coefficients on QGP temperature and jet energy and virtuality, and report the consistency and tensions found for current jet quenching modeling with hadron and reconstructed jet data over a wide range in kinematics and $\sqrt{s_{\text{NN}}}$. This analysis represents the next step in the program of comprehensive analysis of jet quenching phenomenology and its constraint of properties of the QGP. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2208.07950v1-abstract-full').style.display = 'none'; document.getElementById('2208.07950v1-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 August, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">6 pages, 2 figures, contribution to the Quark Matter 2022 proceedings</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2208.00983">arXiv:2208.00983</a> <span> [<a href="https://arxiv.org/pdf/2208.00983">pdf</a>, <a href="https://arxiv.org/format/2208.00983">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 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/10.1103/PhysRevC.107.054901">10.1103/PhysRevC.107.054901 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Multi-scale evolution of charmed particles in a nuclear medium </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=JETSCAPE+collaboration"> JETSCAPE collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Fan%2C+W">W. Fan</a>, <a href="/search/nucl-ex?searchtype=author&query=Vujanovic%2C+G">G. Vujanovic</a>, <a href="/search/nucl-ex?searchtype=author&query=Bass%2C+S+A">S. A. Bass</a>, <a href="/search/nucl-ex?searchtype=author&query=Majumder%2C+A">A. Majumder</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Arora%2C+R">R. Arora</a>, <a href="/search/nucl-ex?searchtype=author&query=Cao%2C+S">S. Cao</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Dai%2C+T">T. Dai</a>, <a href="/search/nucl-ex?searchtype=author&query=Du%2C+L">L. Du</a>, <a href="/search/nucl-ex?searchtype=author&query=Ehlers%2C+R">R. Ehlers</a>, <a href="/search/nucl-ex?searchtype=author&query=Elfner%2C+H">H. Elfner</a>, <a href="/search/nucl-ex?searchtype=author&query=Fries%2C+R+J">R. J. Fries</a>, <a href="/search/nucl-ex?searchtype=author&query=Gale%2C+C">C. Gale</a>, <a href="/search/nucl-ex?searchtype=author&query=He%2C+Y">Y. He</a>, <a href="/search/nucl-ex?searchtype=author&query=Heffernan%2C+M">M. Heffernan</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinz%2C+U">U. Heinz</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacak%2C+B+V">B. V. Jacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacobs%2C+P+M">P. M. Jacobs</a>, <a href="/search/nucl-ex?searchtype=author&query=Jeon%2C+S">S. Jeon</a>, <a href="/search/nucl-ex?searchtype=author&query=Ji%2C+Y">Y. Ji</a>, <a href="/search/nucl-ex?searchtype=author&query=Kauder%2C+K">K. Kauder</a>, <a href="/search/nucl-ex?searchtype=author&query=Kasper%2C+L">L. Kasper</a>, <a href="/search/nucl-ex?searchtype=author&query=Ke%2C+W">W. Ke</a> , et al. (35 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2208.00983v2-abstract-short" style="display: inline;"> Parton energy-momentum exchange with the quark gluon plasma (QGP) is a multi-scale problem. In this work, we calculate the interaction of charm quarks with the QGP within the higher twist formalism at high virtuality and high energy using the MATTER model, while the low virtuality and high energy portion is treated via a (linearized) Boltzmann Transport (LBT) formalism. Coherence effect that reduc… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2208.00983v2-abstract-full').style.display = 'inline'; document.getElementById('2208.00983v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2208.00983v2-abstract-full" style="display: none;"> Parton energy-momentum exchange with the quark gluon plasma (QGP) is a multi-scale problem. In this work, we calculate the interaction of charm quarks with the QGP within the higher twist formalism at high virtuality and high energy using the MATTER model, while the low virtuality and high energy portion is treated via a (linearized) Boltzmann Transport (LBT) formalism. Coherence effect that reduces the medium-induced emission rate in the MATTER model is also taken into account. The interplay between these two formalisms is studied in detail and used to produce a good description of the D-meson and charged hadron nuclear modification factor RAA across multiple centralities. All calculations were carried out utilizing the JETSCAPE framework. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2208.00983v2-abstract-full').style.display = 'none'; document.getElementById('2208.00983v2-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 May, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 1 August, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> 107(5), 2023, 054901 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2203.12354">arXiv:2203.12354</a> <span> [<a href="https://arxiv.org/pdf/2203.12354">pdf</a>, <a href="https://arxiv.org/format/2203.12354">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.107.024914">10.1103/PhysRevC.107.024914 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Low-$p_T$ direct-photon production in Au$+$Au collisions at $\sqrt{s_{_{NN}}}=39$ and 62.4 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Abdulameer%2C+N+J">N. J. Abdulameer</a>, <a href="/search/nucl-ex?searchtype=author&query=Acharya%2C+U">U. Acharya</a>, <a href="/search/nucl-ex?searchtype=author&query=Adare%2C+A">A. Adare</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Akimoto%2C+R">R. Akimoto</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Ta%27ani%2C+H">H. Al-Ta'ani</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+J">J. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Alfred%2C+M">M. Alfred</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-ex?searchtype=author&query=Apadula%2C+N">N. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&query=Aramaki%2C+Y">Y. Aramaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Asano%2C+H">H. Asano</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=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Awes%2C+T+C">T. C. Awes</a>, <a href="/search/nucl-ex?searchtype=author&query=Azmoun%2C+B">B. Azmoun</a>, <a href="/search/nucl-ex?searchtype=author&query=Babintsev%2C+V">V. Babintsev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+M">M. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bannier%2C+B">B. Bannier</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K+N">K. N. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bassalleck%2C+B">B. Bassalleck</a>, <a href="/search/nucl-ex?searchtype=author&query=Bathe%2C+S">S. Bathe</a> , et al. (409 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2203.12354v2-abstract-short" style="display: inline;"> The measurement of direct photons from Au$+$Au collisions at $\sqrt{s_{_{NN}}}=39$ and 62.4 GeV in the transverse-momentum range $0.4<p_T<3$ Gev/$c$ is presented by the PHENIX collaboration at the Relativistic Heavy Ion Collider. A significant direct-photon yield is observed in both collision systems. A universal scaling is observed when the direct-photon $p_T$ spectra for different center-of-mass… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.12354v2-abstract-full').style.display = 'inline'; document.getElementById('2203.12354v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2203.12354v2-abstract-full" style="display: none;"> The measurement of direct photons from Au$+$Au collisions at $\sqrt{s_{_{NN}}}=39$ and 62.4 GeV in the transverse-momentum range $0.4<p_T<3$ Gev/$c$ is presented by the PHENIX collaboration at the Relativistic Heavy Ion Collider. A significant direct-photon yield is observed in both collision systems. A universal scaling is observed when the direct-photon $p_T$ spectra for different center-of-mass energies and for different centrality selections at $\sqrt{s_{_{NN}}}=62.4$ GeV is scaled with $(dN_{\rm ch}/d畏)^伪$ for $伪=1.21{\pm}0.04$. This scaling also holds true for direct-photon spectra from Au$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV measured earlier by PHENIX, as well as the spectra from Pb$+$Pb at $\sqrt{s_{_{NN}}}=2760$ GeV published by ALICE. The scaling power $伪$ seems to be independent of $p_T$, center of mass energy, and collision centrality. The spectra from different collision energies have a similar shape up to $p_T$ of 2 GeV/$c$. The spectra have a local inverse slope $T_{\rm eff}$ increasing with $p_T$ of $0.174\pm0.018$ GeV/$c$ in the range $0.4<p_T<1.3$ GeV/$c$ and increasing to $0.289\pm0.024$ GeV/$c$ for $0.9<p_T<2.1$ GeV/$c$. The observed similarity of low-$p_T$ direct-photon production from $\sqrt{s_{_{NN}}}= 39$ to 2760 GeV suggests a common source of direct photons for the different collision energies and event centrality selections, and suggests a comparable space-time evolution of direct-photon emission. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.12354v2-abstract-full').style.display = 'none'; document.getElementById('2203.12354v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 February, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">434 authors from 78 institutions, 19 pages, 16 figures, 4 tables. v2 is version accepted for publication in Physical Review C as an Editor's Suggestion. HEPdata tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 107, 024914 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2111.05756">arXiv:2111.05756</a> <span> [<a href="https://arxiv.org/pdf/2111.05756">pdf</a>, <a href="https://arxiv.org/format/2111.05756">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.105.064902">10.1103/PhysRevC.105.064902 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Systematic study of nuclear effects in $p$$+$Al, $p$$+$Au, $d$$+$Au, and $^{3}$He$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV using $蟺^0$ production </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Acharya%2C+U+A">U. A. Acharya</a>, <a href="/search/nucl-ex?searchtype=author&query=Adare%2C+A">A. Adare</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Bataineh%2C+H">H. Al-Bataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+J">J. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Alfred%2C+M">M. Alfred</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrieux%2C+V">V. Andrieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-ex?searchtype=author&query=Apadula%2C+N">N. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&query=Aramaki%2C+Y">Y. Aramaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Asano%2C+H">H. Asano</a>, <a href="/search/nucl-ex?searchtype=author&query=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Averbeck%2C+R">R. Averbeck</a>, <a href="/search/nucl-ex?searchtype=author&query=Awes%2C+T+C">T. C. Awes</a>, <a href="/search/nucl-ex?searchtype=author&query=Azmoun%2C+B">B. Azmoun</a>, <a href="/search/nucl-ex?searchtype=author&query=Babintsev%2C+V">V. Babintsev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+M">M. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Baksay%2C+G">G. Baksay</a>, <a href="/search/nucl-ex?searchtype=author&query=Baksay%2C+L">L. Baksay</a>, <a href="/search/nucl-ex?searchtype=author&query=Bandara%2C+N+S">N. S. Bandara</a>, <a href="/search/nucl-ex?searchtype=author&query=Bannier%2C+B">B. Bannier</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K+N">K. N. Barish</a> , et al. (529 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2111.05756v2-abstract-short" style="display: inline;"> The PHENIX collaboration presents a systematic study of $蟺^0$ production from $p$$+$$p$, $p$$+$Al, $p$$+$Au, $d$$+$Au, and $^{3}$He$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV. Measurements were performed with different centrality selections as well as the total inelastic, 0%--100%, selection for all collision systems. For 0%--100% collisions, the nuclear modification factors, $R_{xA}$, are cons… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.05756v2-abstract-full').style.display = 'inline'; document.getElementById('2111.05756v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2111.05756v2-abstract-full" style="display: none;"> The PHENIX collaboration presents a systematic study of $蟺^0$ production from $p$$+$$p$, $p$$+$Al, $p$$+$Au, $d$$+$Au, and $^{3}$He$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV. Measurements were performed with different centrality selections as well as the total inelastic, 0%--100%, selection for all collision systems. For 0%--100% collisions, the nuclear modification factors, $R_{xA}$, are consistent with unity for $p_T$ above 8 GeV/$c$, but exhibit an enhancement in peripheral collisions and a suppression in central collisions. The enhancement and suppression characteristics are similar for all systems for the same centrality class. It is shown that for high-$p_T$-$蟺^0$ production, the nucleons in the $d$ and $^3$He interact mostly independently with the Au nucleus and that the counter intuitive centrality dependence is likely due to a physical correlation between multiplicity and the presence of a hard scattering process. These observations disfavor models where parton energy loss has a significant contribution to nuclear modifications in small systems. Nuclear modifications at lower $p_T$ resemble the Cronin effect -- an increase followed by a peak in central or inelastic collisions and a plateau in peripheral collisions. The peak height has a characteristic ordering by system size as $p$$+$Au $>$ $d$$+$Au $>$ $^{3}$He$+$Au $>$ $p$$+$Al. For collisions with Au ions, current calculations based on initial state cold nuclear matter effects result in the opposite order, suggesting the presence of other contributions to nuclear modifications, in particular at lower $p_T$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.05756v2-abstract-full').style.display = 'none'; document.getElementById('2111.05756v2-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 June, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 November, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">554 authors from 81 institutions, 21 pages, 13 figures, and 3 tables. Data from 2008, 2014, and 2015. v2 is version accepted for publication in Physical Review C. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 105, 064902 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2106.11348">arXiv:2106.11348</a> <span> [<a href="https://arxiv.org/pdf/2106.11348">pdf</a>, <a href="https://arxiv.org/format/2106.11348">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 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"> Determining the jet transport coefficient $\hat{q}$ of the quark-gluon plasma using Bayesian parameter estimation </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Mulligan%2C+J">J. Mulligan</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Arora%2C+R">R. Arora</a>, <a href="/search/nucl-ex?searchtype=author&query=Bass%2C+S+A">S. A. Bass</a>, <a href="/search/nucl-ex?searchtype=author&query=Cao%2C+S">S. Cao</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Coleman%2C+J">J. Coleman</a>, <a href="/search/nucl-ex?searchtype=author&query=Cunqueiro%2C+L">L. Cunqueiro</a>, <a href="/search/nucl-ex?searchtype=author&query=Dai%2C+T">T. Dai</a>, <a href="/search/nucl-ex?searchtype=author&query=Du%2C+L">L. Du</a>, <a href="/search/nucl-ex?searchtype=author&query=Ehlers%2C+R">R. Ehlers</a>, <a href="/search/nucl-ex?searchtype=author&query=Elfner%2C+H">H. Elfner</a>, <a href="/search/nucl-ex?searchtype=author&query=Everett%2C+D">D. Everett</a>, <a href="/search/nucl-ex?searchtype=author&query=Fan%2C+W">W. Fan</a>, <a href="/search/nucl-ex?searchtype=author&query=Fries%2C+R">R. Fries</a>, <a href="/search/nucl-ex?searchtype=author&query=Gale%2C+C">C. Gale</a>, <a href="/search/nucl-ex?searchtype=author&query=Garza%2C+F">F. Garza</a>, <a href="/search/nucl-ex?searchtype=author&query=He%2C+Y">Y. He</a>, <a href="/search/nucl-ex?searchtype=author&query=Heffernan%2C+M">M. Heffernan</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinz%2C+U">U. Heinz</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacak%2C+B+V">B. V. Jacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacobs%2C+P+M">P. M. Jacobs</a>, <a href="/search/nucl-ex?searchtype=author&query=Jeon%2C+S">S. Jeon</a>, <a href="/search/nucl-ex?searchtype=author&query=Ke%2C+W">W. Ke</a>, <a href="/search/nucl-ex?searchtype=author&query=Kim%2C+B">B. Kim</a> , et al. (24 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2106.11348v1-abstract-short" style="display: inline;"> We present a new determination of $\hat{q}$, the jet transport coefficient of the quark-gluon plasma. Using the JETSCAPE framework, we use Bayesian parameter estimation to constrain the dependence of $\hat{q}$ on the jet energy, virtuality, and medium temperature from experimental measurements of inclusive hadron suppression in Au-Au collisions at RHIC and Pb-Pb collisions at the LHC. These result… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2106.11348v1-abstract-full').style.display = 'inline'; document.getElementById('2106.11348v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2106.11348v1-abstract-full" style="display: none;"> We present a new determination of $\hat{q}$, the jet transport coefficient of the quark-gluon plasma. Using the JETSCAPE framework, we use Bayesian parameter estimation to constrain the dependence of $\hat{q}$ on the jet energy, virtuality, and medium temperature from experimental measurements of inclusive hadron suppression in Au-Au collisions at RHIC and Pb-Pb collisions at the LHC. These results are based on a multi-stage theoretical approach to in-medium jet evolution with the MATTER and LBT jet quenching models. The functional dependence of $\hat{q}$ on jet energy, virtuality, and medium temperature is based on a perturbative picture of in-medium scattering, with components reflecting the different regimes of applicability of MATTER and LBT. The correlation of experimental systematic uncertainties is accounted for in the parameter extraction. These results provide state-of-the-art constraints on $\hat{q}$ and lay the groundwork to extract additional properties of the quark-gluon plasma from jet measurements in heavy-ion collisions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2106.11348v1-abstract-full').style.display = 'none'; document.getElementById('2106.11348v1-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 June, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">contribution to the 2021 QCD session of the 55th Recontres de Moriond</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2102.11337">arXiv:2102.11337</a> <span> [<a href="https://arxiv.org/pdf/2102.11337">pdf</a>, <a href="https://arxiv.org/format/2102.11337">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 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/10.1103/PhysRevC.104.024905">10.1103/PhysRevC.104.024905 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Determining the jet transport coefficient $\hat{q}$ from inclusive hadron suppression measurements using Bayesian parameter estimation </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Cao%2C+S">S. Cao</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Coleman%2C+J">J. Coleman</a>, <a href="/search/nucl-ex?searchtype=author&query=Mulligan%2C+J">J. Mulligan</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacobs%2C+P+M">P. M. Jacobs</a>, <a href="/search/nucl-ex?searchtype=author&query=Soltz%2C+R+A">R. A. Soltz</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Arora%2C+R">R. Arora</a>, <a href="/search/nucl-ex?searchtype=author&query=Bass%2C+S+A">S. A. Bass</a>, <a href="/search/nucl-ex?searchtype=author&query=Cunqueiro%2C+L">L. Cunqueiro</a>, <a href="/search/nucl-ex?searchtype=author&query=Dai%2C+T">T. Dai</a>, <a href="/search/nucl-ex?searchtype=author&query=Du%2C+L">L. Du</a>, <a href="/search/nucl-ex?searchtype=author&query=Ehlers%2C+R">R. Ehlers</a>, <a href="/search/nucl-ex?searchtype=author&query=Elfner%2C+H">H. Elfner</a>, <a href="/search/nucl-ex?searchtype=author&query=Everett%2C+D">D. Everett</a>, <a href="/search/nucl-ex?searchtype=author&query=Fan%2C+W">W. Fan</a>, <a href="/search/nucl-ex?searchtype=author&query=Fries%2C+R+J">R. J. Fries</a>, <a href="/search/nucl-ex?searchtype=author&query=Gale%2C+C">C. Gale</a>, <a href="/search/nucl-ex?searchtype=author&query=Garza%2C+F">F. Garza</a>, <a href="/search/nucl-ex?searchtype=author&query=He%2C+Y">Y. He</a>, <a href="/search/nucl-ex?searchtype=author&query=Heffernan%2C+M">M. Heffernan</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinz%2C+U">U. Heinz</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacak%2C+B+V">B. V. Jacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Jeon%2C+S">S. Jeon</a>, <a href="/search/nucl-ex?searchtype=author&query=Ke%2C+W">W. Ke</a> , et al. (22 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="2102.11337v2-abstract-short" style="display: inline;"> We report a new determination of $\hat{q}$, the jet transport coefficient of the Quark-Gluon Plasma. We use the JETSCAPE framework, which incorporates a novel multi-stage theoretical approach to in-medium jet evolution and Bayesian inference for parameter extraction. The calculations, based on the MATTER and LBT jet quenching models, are compared to experimental measurements of inclusive hadron su… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2102.11337v2-abstract-full').style.display = 'inline'; document.getElementById('2102.11337v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2102.11337v2-abstract-full" style="display: none;"> We report a new determination of $\hat{q}$, the jet transport coefficient of the Quark-Gluon Plasma. We use the JETSCAPE framework, which incorporates a novel multi-stage theoretical approach to in-medium jet evolution and Bayesian inference for parameter extraction. The calculations, based on the MATTER and LBT jet quenching models, are compared to experimental measurements of inclusive hadron suppression in Au+Au collisions at RHIC and Pb+Pb collisions at the LHC. The correlation of experimental systematic uncertainties is accounted for in the parameter extraction. The functional dependence of $\hat{q}$ on jet energy or virtuality and medium temperature is based on a perturbative picture of in-medium scattering, with components reflecting the different regimes of applicability of MATTER and LBT. In the multi-stage approach, the switch between MATTER and LBT is governed by a virtuality scale $Q_0$. Comparison of the posterior model predictions to the RHIC and LHC hadron suppression data shows reasonable agreement, with moderate tension in limited regions of phase space. The distribution of $\hat{q}/T^3$ extracted from the posterior distributions exhibits weak dependence on jet momentum and medium temperature $T$, with 90\% Credible Region (CR) depending on the specific choice of model configuration. The choice of MATTER+LBT, with switching at virtuality $Q_0$, has 90\% CR of $2<\hat{q}/T^3<4$ for $p_\mathrm{T}^\mathrm{jet}>40$ GeV/c. The value of $Q_0$, determined here for the first time, is in the range 2.0-2.7 GeV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2102.11337v2-abstract-full').style.display = 'none'; document.getElementById('2102.11337v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 July, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 February, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Published in Phys Rev C</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 104, 024905 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2011.01430">arXiv:2011.01430</a> <span> [<a href="https://arxiv.org/pdf/2011.01430">pdf</a>, <a href="https://arxiv.org/format/2011.01430">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="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.103.054904">10.1103/PhysRevC.103.054904 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Multi-system Bayesian constraints on the transport coefficients of QCD matter </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Everett%2C+D">D. Everett</a>, <a href="/search/nucl-ex?searchtype=author&query=Ke%2C+W">W. Ke</a>, <a href="/search/nucl-ex?searchtype=author&query=Paquet%2C+J+-">J. -F. Paquet</a>, <a href="/search/nucl-ex?searchtype=author&query=Vujanovic%2C+G">G. Vujanovic</a>, <a href="/search/nucl-ex?searchtype=author&query=Bass%2C+S+A">S. A. Bass</a>, <a href="/search/nucl-ex?searchtype=author&query=Du%2C+L">L. Du</a>, <a href="/search/nucl-ex?searchtype=author&query=Gale%2C+C">C. Gale</a>, <a href="/search/nucl-ex?searchtype=author&query=Heffernan%2C+M">M. Heffernan</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinz%2C+U">U. Heinz</a>, <a href="/search/nucl-ex?searchtype=author&query=Liyanage%2C+D">D. Liyanage</a>, <a href="/search/nucl-ex?searchtype=author&query=Luzum%2C+M">M. Luzum</a>, <a href="/search/nucl-ex?searchtype=author&query=Majumder%2C+A">A. Majumder</a>, <a href="/search/nucl-ex?searchtype=author&query=McNelis%2C+M">M. McNelis</a>, <a href="/search/nucl-ex?searchtype=author&query=Shen%2C+C">C. Shen</a>, <a href="/search/nucl-ex?searchtype=author&query=Xu%2C+Y">Y. Xu</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Cao%2C+S">S. Cao</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Coleman%2C+J">J. Coleman</a>, <a href="/search/nucl-ex?searchtype=author&query=Cunqueiro%2C+L">L. Cunqueiro</a>, <a href="/search/nucl-ex?searchtype=author&query=Dai%2C+T">T. Dai</a>, <a href="/search/nucl-ex?searchtype=author&query=Ehlers%2C+R">R. Ehlers</a>, <a href="/search/nucl-ex?searchtype=author&query=Elfner%2C+H">H. Elfner</a>, <a href="/search/nucl-ex?searchtype=author&query=Fan%2C+W">W. Fan</a>, <a href="/search/nucl-ex?searchtype=author&query=Fries%2C+R+J">R. J. Fries</a> , et al. (23 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2011.01430v2-abstract-short" style="display: inline;"> We study the properties of the strongly-coupled quark-gluon plasma with a multistage model of heavy ion collisions that combines the T$_\mathrm{R}$ENTo initial condition ansatz, free-streaming, viscous relativistic hydrodynamics, and a relativistic hadronic transport. A model-to-data comparison with Bayesian inference is performed, revisiting assumptions made in previous studies. The role of param… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.01430v2-abstract-full').style.display = 'inline'; document.getElementById('2011.01430v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2011.01430v2-abstract-full" style="display: none;"> We study the properties of the strongly-coupled quark-gluon plasma with a multistage model of heavy ion collisions that combines the T$_\mathrm{R}$ENTo initial condition ansatz, free-streaming, viscous relativistic hydrodynamics, and a relativistic hadronic transport. A model-to-data comparison with Bayesian inference is performed, revisiting assumptions made in previous studies. The role of parameter priors is studied in light of their importance towards the interpretation of results. We emphasize the use of closure tests to perform extensive validation of the analysis workflow before comparison with observations. Our study combines measurements from the Large Hadron Collider and the Relativistic Heavy Ion Collider, achieving a good simultaneous description of a wide range of hadronic observables from both colliders. The selected experimental data provide reasonable constraints on the shear and the bulk viscosities of the quark-gluon plasma at $T\sim$ 150-250 MeV, but their constraining power degrades at higher temperatures $T \gtrsim 250$ MeV. Furthermore, these viscosity constraints are found to depend significantly on how viscous corrections are handled in the transition from hydrodynamics to the hadronic transport. Several other model parameters, including the free-streaming time, show similar model sensitivity while the initial condition parameters associated with the T$_\mathrm{R}$ENTo ansatz are quite robust against variations of the particlization prescription. We also report on the sensitivity of individual observables to the various model parameters. Finally, Bayesian model selection is used to quantitatively compare the agreement with measurements for different sets of model assumptions, including different particlization models and different choices for which parameters are allowed to vary between RHIC and LHC energies. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.01430v2-abstract-full').style.display = 'none'; document.getElementById('2011.01430v2-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, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 November, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">51 pages, including 35 figures and 8 appendices, long companion paper to arXiv:2010.03928. A useful visualization tool to see the effect of varying individual model parameters on physical observables can be found at jetscape.org/sims-widget. Some references and discussion added. This version submitted for publication</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 103, 054904 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2010.03928">arXiv:2010.03928</a> <span> [<a href="https://arxiv.org/pdf/2010.03928">pdf</a>, <a href="https://arxiv.org/format/2010.03928">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.126.242301">10.1103/PhysRevLett.126.242301 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Phenomenological constraints on the transport properties of QCD matter with data-driven model averaging </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Everett%2C+D">D. Everett</a>, <a href="/search/nucl-ex?searchtype=author&query=Ke%2C+W">W. Ke</a>, <a href="/search/nucl-ex?searchtype=author&query=Paquet%2C+J+-">J. -F. Paquet</a>, <a href="/search/nucl-ex?searchtype=author&query=Vujanovic%2C+G">G. Vujanovic</a>, <a href="/search/nucl-ex?searchtype=author&query=Bass%2C+S+A">S. A. Bass</a>, <a href="/search/nucl-ex?searchtype=author&query=Du%2C+L">L. Du</a>, <a href="/search/nucl-ex?searchtype=author&query=Gale%2C+C">C. Gale</a>, <a href="/search/nucl-ex?searchtype=author&query=Heffernan%2C+M">M. Heffernan</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinz%2C+U">U. Heinz</a>, <a href="/search/nucl-ex?searchtype=author&query=Liyanage%2C+D">D. Liyanage</a>, <a href="/search/nucl-ex?searchtype=author&query=Luzum%2C+M">M. Luzum</a>, <a href="/search/nucl-ex?searchtype=author&query=Majumder%2C+A">A. Majumder</a>, <a href="/search/nucl-ex?searchtype=author&query=McNelis%2C+M">M. McNelis</a>, <a href="/search/nucl-ex?searchtype=author&query=Shen%2C+C">C. Shen</a>, <a href="/search/nucl-ex?searchtype=author&query=Xu%2C+Y">Y. Xu</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Cao%2C+S">S. Cao</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Coleman%2C+J">J. Coleman</a>, <a href="/search/nucl-ex?searchtype=author&query=Cunqueiro%2C+L">L. Cunqueiro</a>, <a href="/search/nucl-ex?searchtype=author&query=Dai%2C+T">T. Dai</a>, <a href="/search/nucl-ex?searchtype=author&query=Ehlers%2C+R">R. Ehlers</a>, <a href="/search/nucl-ex?searchtype=author&query=Elfner%2C+H">H. Elfner</a>, <a href="/search/nucl-ex?searchtype=author&query=Fan%2C+W">W. Fan</a>, <a href="/search/nucl-ex?searchtype=author&query=Fries%2C+R+J">R. J. Fries</a> , et al. (23 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2010.03928v1-abstract-short" style="display: inline;"> Using combined data from the Relativistic Heavy Ion and Large Hadron Colliders, we constrain the shear and bulk viscosities of quark-gluon plasma (QGP) at temperatures of ${\sim\,}150{-}350$ MeV. We use Bayesian inference to translate experimental and theoretical uncertainties into probabilistic constraints for the viscosities. With Bayesian Model Averaging we account for the irreducible model amb… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2010.03928v1-abstract-full').style.display = 'inline'; document.getElementById('2010.03928v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2010.03928v1-abstract-full" style="display: none;"> Using combined data from the Relativistic Heavy Ion and Large Hadron Colliders, we constrain the shear and bulk viscosities of quark-gluon plasma (QGP) at temperatures of ${\sim\,}150{-}350$ MeV. We use Bayesian inference to translate experimental and theoretical uncertainties into probabilistic constraints for the viscosities. With Bayesian Model Averaging we account for the irreducible model ambiguities in the transition from a fluid description of the QGP to hadronic transport in the final evolution stage, providing the most reliable phenomenological constraints to date on the QGP viscosities. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2010.03928v1-abstract-full').style.display = 'none'; document.getElementById('2010.03928v1-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 October, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">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. Rev. Lett. 126, 242301 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2009.03838">arXiv:2009.03838</a> <span> [<a href="https://arxiv.org/pdf/2009.03838">pdf</a>, <a href="https://arxiv.org/format/2009.03838">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> New opportunities at the photon energy frontier </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adam%2C+J">Jaroslav Adam</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">Christine Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">Aaron Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Audurier%2C+B">Benjamin Audurier</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertulani%2C+C">Carlos Bertulani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bierlich%2C+C">Christian Bierlich</a>, <a href="/search/nucl-ex?searchtype=author&query=Blok%2C+B">Boris Blok</a>, <a href="/search/nucl-ex?searchtype=author&query=Brandenburg%2C+J+D">James Daniel Brandenburg</a>, <a href="/search/nucl-ex?searchtype=author&query=Brodsky%2C+S">Stanley Brodsky</a>, <a href="/search/nucl-ex?searchtype=author&query=Bylinkin%2C+A">Aleksandr Bylinkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Roman%2C+V+C">Veronica Canoa Roman</a>, <a href="/search/nucl-ex?searchtype=author&query=Celiberto%2C+F+G">Francesco Giovanni Celiberto</a>, <a href="/search/nucl-ex?searchtype=author&query=Cepila%2C+J">Jan Cepila</a>, <a href="/search/nucl-ex?searchtype=author&query=Chachamis%2C+G">Grigorios Chachamis</a>, <a href="/search/nucl-ex?searchtype=author&query=Cole%2C+B">Brian Cole</a>, <a href="/search/nucl-ex?searchtype=author&query=Contreras%2C+G">Guillermo Contreras</a>, <a href="/search/nucl-ex?searchtype=author&query=d%27Enterria%2C+D">David d'Enterria</a>, <a href="/search/nucl-ex?searchtype=author&query=Dumitru%2C+A">Adrian Dumitru</a>, <a href="/search/nucl-ex?searchtype=author&query=T%C3%A9llez%2C+A+F">Arturo Fern谩ndez T茅llez</a>, <a href="/search/nucl-ex?searchtype=author&query=Frankfurt%2C+L">Leonid Frankfurt</a>, <a href="/search/nucl-ex?searchtype=author&query=Ducati%2C+M+B+G">Maria Beatriz Gay Ducati</a>, <a href="/search/nucl-ex?searchtype=author&query=Geurts%2C+F">Frank Geurts</a>, <a href="/search/nucl-ex?searchtype=author&query=da+Silveira%2C+G+G">Gustavo Gil da Silveira</a>, <a href="/search/nucl-ex?searchtype=author&query=Giuli%2C+F">Francesco Giuli</a>, <a href="/search/nucl-ex?searchtype=author&query=Goncalves%2C+V+P">Victor P. Goncalves</a> , et al. (50 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2009.03838v1-abstract-short" style="display: inline;"> Ultra-peripheral collisions (UPCs) involving heavy ions and protons are the energy frontier for photon-mediated interactions. UPC photons can be used for many purposes, including probing low-$x$ gluons via photoproduction of dijets and vector mesons, probes of beyond-standard-model processes, such as those enabled by light-by-light scattering, and studies of two-photon production of the Higgs. </span> <span class="abstract-full has-text-grey-dark mathjax" id="2009.03838v1-abstract-full" style="display: none;"> Ultra-peripheral collisions (UPCs) involving heavy ions and protons are the energy frontier for photon-mediated interactions. UPC photons can be used for many purposes, including probing low-$x$ gluons via photoproduction of dijets and vector mesons, probes of beyond-standard-model processes, such as those enabled by light-by-light scattering, and studies of two-photon production of the Higgs. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2009.03838v1-abstract-full').style.display = 'none'; document.getElementById('2009.03838v1-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 September, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Letter of Interest submitted to Snowmass 2021</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2005.14270">arXiv:2005.14270</a> <span> [<a href="https://arxiv.org/pdf/2005.14270">pdf</a>, <a href="https://arxiv.org/format/2005.14270">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.102.054910">10.1103/PhysRevC.102.054910 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of jet-medium interactions via direct photon-hadron correlations in Au$+$Au and $d$$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Acharya%2C+U">U. Acharya</a>, <a href="/search/nucl-ex?searchtype=author&query=Adare%2C+A">A. Adare</a>, <a href="/search/nucl-ex?searchtype=author&query=Afanasiev%2C+S">S. Afanasiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Akimoto%2C+R">R. Akimoto</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Bataineh%2C+H">H. Al-Bataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+J">J. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Ta%27ani%2C+H">H. Al-Ta'ani</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-ex?searchtype=author&query=Apadula%2C+N">N. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&query=Aramaki%2C+Y">Y. Aramaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Asano%2C+H">H. Asano</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=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Averbeck%2C+R">R. Averbeck</a>, <a href="/search/nucl-ex?searchtype=author&query=Awes%2C+T+C">T. C. Awes</a>, <a href="/search/nucl-ex?searchtype=author&query=Azmoun%2C+B">B. Azmoun</a>, <a href="/search/nucl-ex?searchtype=author&query=Babintsev%2C+V">V. Babintsev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+M">M. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Baksay%2C+G">G. Baksay</a>, <a href="/search/nucl-ex?searchtype=author&query=Baksay%2C+L">L. Baksay</a>, <a href="/search/nucl-ex?searchtype=author&query=Bannier%2C+B">B. Bannier</a> , et al. (553 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2005.14270v2-abstract-short" style="display: inline;"> We present direct photon-hadron correlations in 200 GeV/A Au$+$Au, $d$$+$Au and $p$$+$$p$ collisions, for direct photon $p_T$ from 5--12 GeV/$c$, collected by the PHENIX Collaboration in the years from 2006 to 2011. We observe no significant modification of jet fragmentation in $d$$+$Au collisions, indicating that cold nuclear matter effects are small or absent. Hadrons carrying a large fraction o… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2005.14270v2-abstract-full').style.display = 'inline'; document.getElementById('2005.14270v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2005.14270v2-abstract-full" style="display: none;"> We present direct photon-hadron correlations in 200 GeV/A Au$+$Au, $d$$+$Au and $p$$+$$p$ collisions, for direct photon $p_T$ from 5--12 GeV/$c$, collected by the PHENIX Collaboration in the years from 2006 to 2011. We observe no significant modification of jet fragmentation in $d$$+$Au collisions, indicating that cold nuclear matter effects are small or absent. Hadrons carrying a large fraction of the quark's momentum are suppressed in Au$+$Au compared to $p$$+$$p$ and $d$$+$Au. As the momentum fraction decreases, the yield of hadrons in Au$+$Au increases to an excess over the yield in $p$$+$$p$ collisions. The excess is at large angles and at low hadron $p_T$ and is most pronounced for hadrons associated with lower momentum direct photons. Comparison to theoretical calculations suggests that the hadron excess arises from medium response to energy deposited by jets. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2005.14270v2-abstract-full').style.display = 'none'; document.getElementById('2005.14270v2-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 November, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 May, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">578 authors from 80 institutions, 11 pages, 7 figures, data from 2007, 2008, 2010, and 2011. v2 is version accepted for publication in Physical Review C. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 102, 054910 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2002.12250">arXiv:2002.12250</a> <span> [<a href="https://arxiv.org/pdf/2002.12250">pdf</a>, <a href="https://arxiv.org/format/2002.12250">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 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/10.1016/j.nuclphysa.2020.121920">10.1016/j.nuclphysa.2020.121920 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Hydrodynamic response to jets with a source based on causal diffusion </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Tachibana%2C+Y">Y. Tachibana</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Bass%2C+S+A">S. A. Bass</a>, <a href="/search/nucl-ex?searchtype=author&query=Cao%2C+S">S. Cao</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Coleman%2C+J">J. Coleman</a>, <a href="/search/nucl-ex?searchtype=author&query=Cunqueiro%2C+L">L. Cunqueiro</a>, <a href="/search/nucl-ex?searchtype=author&query=Dai%2C+T">T. Dai</a>, <a href="/search/nucl-ex?searchtype=author&query=Du%2C+L">L. Du</a>, <a href="/search/nucl-ex?searchtype=author&query=Ehlers%2C+R">R. Ehlers</a>, <a href="/search/nucl-ex?searchtype=author&query=Elfner%2C+H">H. Elfner</a>, <a href="/search/nucl-ex?searchtype=author&query=Everett%2C+D">D. Everett</a>, <a href="/search/nucl-ex?searchtype=author&query=Fan%2C+W">W. Fan</a>, <a href="/search/nucl-ex?searchtype=author&query=Fries%2C+R">R. Fries</a>, <a href="/search/nucl-ex?searchtype=author&query=Gale%2C+C">C. Gale</a>, <a href="/search/nucl-ex?searchtype=author&query=He%2C+Y">Y. He</a>, <a href="/search/nucl-ex?searchtype=author&query=Heffernan%2C+M">M. Heffernan</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinz%2C+U">U. Heinz</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacak%2C+B+V">B. V. Jacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacobs%2C+P+M">P. M. Jacobs</a>, <a href="/search/nucl-ex?searchtype=author&query=Jeon%2C+S">S. Jeon</a>, <a href="/search/nucl-ex?searchtype=author&query=Kauder%2C+K">K. Kauder</a>, <a href="/search/nucl-ex?searchtype=author&query=Ke%2C+W">W. Ke</a>, <a href="/search/nucl-ex?searchtype=author&query=Khalaj%2C+E">E. Khalaj</a>, <a href="/search/nucl-ex?searchtype=author&query=Kordell%2C+M">M. Kordell II</a> , et al. (25 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="2002.12250v1-abstract-short" style="display: inline;"> We study the medium response to jet evolution in the quark-gluon plasma within the JETSCAPE framework. Recoil partons' medium response in the weakly coupled description is implemented in the multi-stage jet energy-loss model in the framework. As a further extension, the hydrodynamic description is rearranged to include in-medium jet transport based on a strong-coupling picture. To interface hydrod… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.12250v1-abstract-full').style.display = 'inline'; document.getElementById('2002.12250v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2002.12250v1-abstract-full" style="display: none;"> We study the medium response to jet evolution in the quark-gluon plasma within the JETSCAPE framework. Recoil partons' medium response in the weakly coupled description is implemented in the multi-stage jet energy-loss model in the framework. As a further extension, the hydrodynamic description is rearranged to include in-medium jet transport based on a strong-coupling picture. To interface hydrodynamics with jet energy-loss models, the hydrodynamic source term is modeled by a causal formulation employing the relativistic diffusion equation. The jet shape and fragmentation function are studied via realistic simulations with weakly coupled recoils. We also demonstrate modifications in the medium caused by the hydrodynamic response. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.12250v1-abstract-full').style.display = 'none'; document.getElementById('2002.12250v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 February, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">4 pages, 2 figures, contribution to the Quark Matter 2019 proceedings</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2002.07124">arXiv:2002.07124</a> <span> [<a href="https://arxiv.org/pdf/2002.07124">pdf</a>, <a href="https://arxiv.org/format/2002.07124">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 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/10.1016/j.nuclphysa.2020.122009">10.1016/j.nuclphysa.2020.122009 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Jet quenching in a multi-stage Monte Carlo approach </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Kumar%2C+A">A. Kumar</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Bass%2C+S+A">S. A. Bass</a>, <a href="/search/nucl-ex?searchtype=author&query=Cao%2C+S">S. Cao</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Coleman%2C+J">J. Coleman</a>, <a href="/search/nucl-ex?searchtype=author&query=Cunqueiro%2C+L">L. Cunqueiro</a>, <a href="/search/nucl-ex?searchtype=author&query=Dai%2C+T">T. Dai</a>, <a href="/search/nucl-ex?searchtype=author&query=Du%2C+L">L. Du</a>, <a href="/search/nucl-ex?searchtype=author&query=Ehlers%2C+R">R. Ehlers</a>, <a href="/search/nucl-ex?searchtype=author&query=Elfner%2C+H">H. Elfner</a>, <a href="/search/nucl-ex?searchtype=author&query=Everett%2C+D">D. Everett</a>, <a href="/search/nucl-ex?searchtype=author&query=Fan%2C+W">W. Fan</a>, <a href="/search/nucl-ex?searchtype=author&query=Fries%2C+R">R. Fries</a>, <a href="/search/nucl-ex?searchtype=author&query=Gale%2C+C">C. Gale</a>, <a href="/search/nucl-ex?searchtype=author&query=He%2C+Y">Y. He</a>, <a href="/search/nucl-ex?searchtype=author&query=Heffernan%2C+M">M. Heffernan</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinz%2C+U">U. Heinz</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacak%2C+B+V">B. V. Jacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacobs%2C+P+M">P. M. Jacobs</a>, <a href="/search/nucl-ex?searchtype=author&query=Jeon%2C+S">S. Jeon</a>, <a href="/search/nucl-ex?searchtype=author&query=Kauder%2C+K">K. Kauder</a>, <a href="/search/nucl-ex?searchtype=author&query=Ke%2C+W">W. Ke</a>, <a href="/search/nucl-ex?searchtype=author&query=Khalaj%2C+E">E. Khalaj</a>, <a href="/search/nucl-ex?searchtype=author&query=Kordell%2C+M">M. Kordell II</a> , et al. (25 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="2002.07124v1-abstract-short" style="display: inline;"> We present a jet quenching model within a unified multi-stage framework and demonstrate for the first time a simultaneous description of leading hadrons, inclusive jets, and elliptic flow observables which spans multiple centralities and collision energies. This highlights one of the major successes of the JETSCAPE framework in providing a tool for setting up an effective parton evolution that inc… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.07124v1-abstract-full').style.display = 'inline'; document.getElementById('2002.07124v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2002.07124v1-abstract-full" style="display: none;"> We present a jet quenching model within a unified multi-stage framework and demonstrate for the first time a simultaneous description of leading hadrons, inclusive jets, and elliptic flow observables which spans multiple centralities and collision energies. This highlights one of the major successes of the JETSCAPE framework in providing a tool for setting up an effective parton evolution that includes a high-virtuality radiation dominated energy loss phase (MATTER), followed by a low-virtuality scattering dominated (LBT) energy loss phase. Measurements of jet and charged-hadron $R_{AA}$ set strong constraints on the jet quenching model. Jet-medium response is also included through a weakly-coupled transport description. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.07124v1-abstract-full').style.display = 'none'; document.getElementById('2002.07124v1-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 February, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">4 pages, 4 figures, contribution to the Quark Matter 2019 proceedings</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1910.05481">arXiv:1910.05481</a> <span> [<a href="https://arxiv.org/pdf/1910.05481">pdf</a>, <a href="https://arxiv.org/format/1910.05481">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 Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.102.054906">10.1103/PhysRevC.102.054906 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The JETSCAPE framework: p+p results </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Kumar%2C+A">A. Kumar</a>, <a href="/search/nucl-ex?searchtype=author&query=Tachibana%2C+Y">Y. Tachibana</a>, <a href="/search/nucl-ex?searchtype=author&query=Pablos%2C+D">D. Pablos</a>, <a href="/search/nucl-ex?searchtype=author&query=Sirimanna%2C+C">C. Sirimanna</a>, <a href="/search/nucl-ex?searchtype=author&query=Fries%2C+R+J">R. J. Fries</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Bass%2C+S+A">S. A. Bass</a>, <a href="/search/nucl-ex?searchtype=author&query=Cao%2C+S">S. Cao</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Coleman%2C+J">J. Coleman</a>, <a href="/search/nucl-ex?searchtype=author&query=Cunqueiro%2C+L">L. Cunqueiro</a>, <a href="/search/nucl-ex?searchtype=author&query=Dai%2C+T">T. Dai</a>, <a href="/search/nucl-ex?searchtype=author&query=Du%2C+L">L. Du</a>, <a href="/search/nucl-ex?searchtype=author&query=Elfner%2C+H">H. Elfner</a>, <a href="/search/nucl-ex?searchtype=author&query=Everett%2C+D">D. Everett</a>, <a href="/search/nucl-ex?searchtype=author&query=Fan%2C+W">W. Fan</a>, <a href="/search/nucl-ex?searchtype=author&query=Gale%2C+C">C. Gale</a>, <a href="/search/nucl-ex?searchtype=author&query=He%2C+Y">Y. He</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinz%2C+U">U. Heinz</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacak%2C+B+V">B. V. Jacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacobs%2C+P+M">P. M. Jacobs</a>, <a href="/search/nucl-ex?searchtype=author&query=Jeon%2C+1+S">15 S. Jeon</a>, <a href="/search/nucl-ex?searchtype=author&query=Kauder%2C+K">K. Kauder</a>, <a href="/search/nucl-ex?searchtype=author&query=Ke%2C+W">W. Ke</a>, <a href="/search/nucl-ex?searchtype=author&query=Khalaj%2C+E">E. Khalaj</a> , et al. (21 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="1910.05481v2-abstract-short" style="display: inline;"> The JETSCAPE framework is a modular and versatile Monte Carlo software package for the simulation of high energy nuclear collisions. In this work we present a new tune of JETSCAPE, called PP19, and validate it by comparison to jet-based measurements in $p+p$ collisions, including inclusive single jet cross sections, jet shape observables, fragmentation functions, charged hadron cross sections, and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1910.05481v2-abstract-full').style.display = 'inline'; document.getElementById('1910.05481v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1910.05481v2-abstract-full" style="display: none;"> The JETSCAPE framework is a modular and versatile Monte Carlo software package for the simulation of high energy nuclear collisions. In this work we present a new tune of JETSCAPE, called PP19, and validate it by comparison to jet-based measurements in $p+p$ collisions, including inclusive single jet cross sections, jet shape observables, fragmentation functions, charged hadron cross sections, and dijet mass cross sections. These observables in $p+p$ collisions provide the baseline for their counterparts in nuclear collisions. Quantifying the level of agreement of JETSCAPE results with $p+p$ data is thus necessary for meaningful applications of JETSCAPE to A+A collisions. The calculations use the JETSCAPE PP19 tune, defined in this paper, based on version 1.0 of the JETSCAPE framework. For the observables discussed in this work calculations using JETSCAPE PP19 agree with data over a wide range of collision energies at a level comparable to standard Monte Carlo codes. These results demonstrate the physics capabilities of the JETSCAPE framework and provide benchmarks for JETSCAPE users. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1910.05481v2-abstract-full').style.display = 'none'; document.getElementById('1910.05481v2-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, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 October, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">23 pages, 23 figures; v1.1: minor bug fixes in author information</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 102, 054906 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1903.07706">arXiv:1903.07706</a> <span> [<a href="https://arxiv.org/pdf/1903.07706">pdf</a>, <a href="https://arxiv.org/format/1903.07706">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 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"> The JETSCAPE framework </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Putschke%2C+J+H">J. H. Putschke</a>, <a href="/search/nucl-ex?searchtype=author&query=Kauder%2C+K">K. Kauder</a>, <a href="/search/nucl-ex?searchtype=author&query=Khalaj%2C+E">E. Khalaj</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Bass%2C+S+A">S. A. Bass</a>, <a href="/search/nucl-ex?searchtype=author&query=Cao%2C+S">S. Cao</a>, <a href="/search/nucl-ex?searchtype=author&query=Coleman%2C+J">J. Coleman</a>, <a href="/search/nucl-ex?searchtype=author&query=Cunqueiro%2C+L">L. Cunqueiro</a>, <a href="/search/nucl-ex?searchtype=author&query=Dai%2C+T">T. Dai</a>, <a href="/search/nucl-ex?searchtype=author&query=Du%2C+L">L. Du</a>, <a href="/search/nucl-ex?searchtype=author&query=Elfner%2C+H">H. Elfner</a>, <a href="/search/nucl-ex?searchtype=author&query=Everett%2C+D">D. Everett</a>, <a href="/search/nucl-ex?searchtype=author&query=Fan%2C+W">W. Fan</a>, <a href="/search/nucl-ex?searchtype=author&query=Fries%2C+R+J">R. J. Fries</a>, <a href="/search/nucl-ex?searchtype=author&query=Gale%2C+C">C. Gale</a>, <a href="/search/nucl-ex?searchtype=author&query=He%2C+Y">Y. He</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinz%2C+U">U. Heinz</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacak%2C+B+V">B. V. Jacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacobs%2C+P+M">P. M. Jacobs</a>, <a href="/search/nucl-ex?searchtype=author&query=Jeon%2C+S">S. Jeon</a>, <a href="/search/nucl-ex?searchtype=author&query=Ke%2C+W">W. Ke</a>, <a href="/search/nucl-ex?searchtype=author&query=Kordell%2C+M">M. Kordell II</a>, <a href="/search/nucl-ex?searchtype=author&query=Kumar%2C+A">A. Kumar</a>, <a href="/search/nucl-ex?searchtype=author&query=Luo%2C+T">T. Luo</a>, <a href="/search/nucl-ex?searchtype=author&query=Majumder%2C+A">A. Majumder</a> , et al. (20 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="1903.07706v1-abstract-short" style="display: inline;"> The JETSCAPE simulation framework is an overarching computational envelope for developing complete event generators for heavy-ion collisions. It allows for modular incorporation of a wide variety of existing and future software that simulates different aspects of a heavy-ion collision. The default JETSCAPE package contains both the framework, and an entire set of indigenous and third party routine… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1903.07706v1-abstract-full').style.display = 'inline'; document.getElementById('1903.07706v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1903.07706v1-abstract-full" style="display: none;"> The JETSCAPE simulation framework is an overarching computational envelope for developing complete event generators for heavy-ion collisions. It allows for modular incorporation of a wide variety of existing and future software that simulates different aspects of a heavy-ion collision. The default JETSCAPE package contains both the framework, and an entire set of indigenous and third party routines that can be used to directly compare with experimental data. In this article, we outline the algorithmic design of the JETSCAPE framework, define the interfaces and describe the default modules required to carry out full simulations of heavy-ion collisions within this package. We begin with a description of the various physics elements required to simulate an entire event in a heavy-ion collision, and distribute these within a flowchart representing the event generator and statistical routines for comparison with data. This is followed by a description of the abstract class structure, with associated members and functions required for this flowchart to work. We then define the interface that will be required for external users of JETSCAPE to incorporate their code within this framework and to modify existing elements within the default distribution. We conclude with a discussion of some of the physics output for both $p$-$p$ and $A$-$A$ collisions from the default distribution, and an outlook towards future releases. In the appendix, we discuss various architectures on which this code can be run and outline our benchmarks on similar hardware. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1903.07706v1-abstract-full').style.display = 'none'; document.getElementById('1903.07706v1-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 March, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">93 pages, 13 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/1902.05934">arXiv:1902.05934</a> <span> [<a href="https://arxiv.org/pdf/1902.05934">pdf</a>, <a href="https://arxiv.org/format/1902.05934">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 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"> Multi-stage jet evolution through QGP using the JETSCAPE framework: inclusive jets, correlations and leading hadrons </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Park%2C+C">C. Park</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Bass%2C+S+A">S. A. Bass</a>, <a href="/search/nucl-ex?searchtype=author&query=Cao%2C+S">S. Cao</a>, <a href="/search/nucl-ex?searchtype=author&query=Coleman%2C+J">J. Coleman</a>, <a href="/search/nucl-ex?searchtype=author&query=Cunqueiro%2C+L">L. Cunqueiro</a>, <a href="/search/nucl-ex?searchtype=author&query=Dai%2C+T">T. Dai</a>, <a href="/search/nucl-ex?searchtype=author&query=Du%2C+L">L. Du</a>, <a href="/search/nucl-ex?searchtype=author&query=Elfner%2C+H">H. Elfner</a>, <a href="/search/nucl-ex?searchtype=author&query=Everett%2C+D">D. Everett</a>, <a href="/search/nucl-ex?searchtype=author&query=Fan%2C+W">W. Fan</a>, <a href="/search/nucl-ex?searchtype=author&query=Fries%2C+R">R. Fries</a>, <a href="/search/nucl-ex?searchtype=author&query=Gale%2C+C">C. Gale</a>, <a href="/search/nucl-ex?searchtype=author&query=He%2C+Y">Y. He</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinz%2C+U">U. Heinz</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacak%2C+B+V">B. V. Jacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacobs%2C+P+M">P. M. Jacobs</a>, <a href="/search/nucl-ex?searchtype=author&query=Jeon%2C+S">S. Jeon</a>, <a href="/search/nucl-ex?searchtype=author&query=Kauder%2C+K">K. Kauder</a>, <a href="/search/nucl-ex?searchtype=author&query=Ke%2C+W">W. Ke</a>, <a href="/search/nucl-ex?searchtype=author&query=Khalaj%2C+E">E. Khalaj</a>, <a href="/search/nucl-ex?searchtype=author&query=Kordell%2C+M">M. Kordell II</a>, <a href="/search/nucl-ex?searchtype=author&query=Kumar%2C+A">A. Kumar</a>, <a href="/search/nucl-ex?searchtype=author&query=Luo%2C+T">T. Luo</a>, <a href="/search/nucl-ex?searchtype=author&query=Majumder%2C+A">A. Majumder</a> , et al. (19 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1902.05934v1-abstract-short" style="display: inline;"> The JETSCAPE Collaboration has recently announced the first release of the JETSCAPE package that provides a modular, flexible, and extensible Monte Carlo event generator. This innovative framework makes it possible to perform a comprehensive study of multi-stage high-energy jet evolution in the Quark-Gluon Plasma. In this work, we illustrate the performance of the event generator for different alg… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1902.05934v1-abstract-full').style.display = 'inline'; document.getElementById('1902.05934v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1902.05934v1-abstract-full" style="display: none;"> The JETSCAPE Collaboration has recently announced the first release of the JETSCAPE package that provides a modular, flexible, and extensible Monte Carlo event generator. This innovative framework makes it possible to perform a comprehensive study of multi-stage high-energy jet evolution in the Quark-Gluon Plasma. In this work, we illustrate the performance of the event generator for different algorithmic approaches to jet energy loss, and reproduce the measurements of several jet and hadron observables as well as correlations between the hard and soft sector. We also carry out direct comparisons between different approaches to energy loss to study their sensitivity to those observables. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1902.05934v1-abstract-full').style.display = 'none'; document.getElementById('1902.05934v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 February, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2019. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1812.06772">arXiv:1812.06772</a> <span> [<a href="https://arxiv.org/pdf/1812.06772">pdf</a>, <a href="https://arxiv.org/format/1812.06772">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> </div> <p class="title is-5 mathjax"> Future physics opportunities for high-density QCD at the LHC with heavy-ion and proton beams </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Citron%2C+Z">Z. Citron</a>, <a href="/search/nucl-ex?searchtype=author&query=Dainese%2C+A">A. Dainese</a>, <a href="/search/nucl-ex?searchtype=author&query=Grosse-Oetringhaus%2C+J+F">J. F. Grosse-Oetringhaus</a>, <a href="/search/nucl-ex?searchtype=author&query=Jowett%2C+J+M">J. M. Jowett</a>, <a href="/search/nucl-ex?searchtype=author&query=Lee%2C+Y+-">Y. -J. Lee</a>, <a href="/search/nucl-ex?searchtype=author&query=Wiedemann%2C+U+A">U. A. Wiedemann</a>, <a href="/search/nucl-ex?searchtype=author&query=Winn%2C+M">M. Winn</a>, <a href="/search/nucl-ex?searchtype=author&query=Andronic%2C+A">A. Andronic</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/nucl-ex?searchtype=author&query=Bruna%2C+E">E. Bruna</a>, <a href="/search/nucl-ex?searchtype=author&query=Chapon%2C+E">E. Chapon</a>, <a href="/search/nucl-ex?searchtype=author&query=Dembinski%2C+H">H. Dembinski</a>, <a href="/search/nucl-ex?searchtype=author&query=d%27Enterria%2C+D">D. d'Enterria</a>, <a href="/search/nucl-ex?searchtype=author&query=Grabowska-Bold%2C+I">I. Grabowska-Bold</a>, <a href="/search/nucl-ex?searchtype=author&query=Innocenti%2C+G+M">G. M. Innocenti</a>, <a href="/search/nucl-ex?searchtype=author&query=Loizides%2C+C">C. Loizides</a>, <a href="/search/nucl-ex?searchtype=author&query=Mohapatra%2C+S">S. Mohapatra</a>, <a href="/search/nucl-ex?searchtype=author&query=Salgado%2C+C+A">C. A. Salgado</a>, <a href="/search/nucl-ex?searchtype=author&query=Verweij%2C+M">M. Verweij</a>, <a href="/search/nucl-ex?searchtype=author&query=Weber%2C+M">M. Weber</a>, <a href="/search/nucl-ex?searchtype=author&query=Aichelin%2C+J">J. Aichelin</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Apolinario%2C+L">L. Apolinario</a>, <a href="/search/nucl-ex?searchtype=author&query=Arleo%2C+F">F. Arleo</a>, <a href="/search/nucl-ex?searchtype=author&query=Armesto%2C+N">N. Armesto</a> , et al. (160 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="1812.06772v2-abstract-short" style="display: inline;"> The future opportunities for high-density QCD studies with ion and proton beams at the LHC are presented. Four major scientific goals are identified: the characterisation of the macroscopic long wavelength Quark-Gluon Plasma (QGP) properties with unprecedented precision, the investigation of the microscopic parton dynamics underlying QGP properties, the development of a unified picture of particle… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1812.06772v2-abstract-full').style.display = 'inline'; document.getElementById('1812.06772v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1812.06772v2-abstract-full" style="display: none;"> The future opportunities for high-density QCD studies with ion and proton beams at the LHC are presented. Four major scientific goals are identified: the characterisation of the macroscopic long wavelength Quark-Gluon Plasma (QGP) properties with unprecedented precision, the investigation of the microscopic parton dynamics underlying QGP properties, the development of a unified picture of particle production and QCD dynamics from small (pp) to large (nucleus--nucleus) systems, the exploration of parton densities in nuclei in a broad ($x$, $Q^2$) kinematic range and the search for the possible onset of parton saturation. In order to address these scientific goals, high-luminosity Pb-Pb and p-Pb programmes are considered as priorities for Runs 3 and 4, complemented by high-multiplicity studies in pp collisions and a short run with oxygen ions. High-luminosity runs with intermediate-mass nuclei, for example Ar or Kr, are considered as an appealing case for extending the heavy-ion programme at the LHC beyond Run 4. The potential of the High-Energy LHC to probe QCD matter with newly-available observables, at twice larger center-of-mass energies than the LHC, is investigated. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1812.06772v2-abstract-full').style.display = 'none'; document.getElementById('1812.06772v2-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 February, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 December, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">209 pages; Report from Working Group 5 of the Workshop on the Physics of the CERN HL-LHC, and Perspectives at the HE-LHC (v2: Minor updates to text and figures. Added one author.)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-LPCC-2018-07 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1812.06366">arXiv:1812.06366</a> <span> [<a href="https://arxiv.org/pdf/1812.06366">pdf</a>, <a href="https://arxiv.org/format/1812.06366">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 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"> Jet substructure modification in a QGP from a multi-scale description of jet evolution with JETSCAPE </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Tachibana%2C+Y">Y. Tachibana</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Bass%2C+S+A">S. A. Bass</a>, <a href="/search/nucl-ex?searchtype=author&query=Cao%2C+S">S. Cao</a>, <a href="/search/nucl-ex?searchtype=author&query=Coleman%2C+J">J. Coleman</a>, <a href="/search/nucl-ex?searchtype=author&query=Cunqueiro%2C+L">L. Cunqueiro</a>, <a href="/search/nucl-ex?searchtype=author&query=Dai%2C+T">T. Dai</a>, <a href="/search/nucl-ex?searchtype=author&query=Du%2C+L">L. Du</a>, <a href="/search/nucl-ex?searchtype=author&query=Elfner%2C+H">H. Elfner</a>, <a href="/search/nucl-ex?searchtype=author&query=Everett%2C+D">D. Everett</a>, <a href="/search/nucl-ex?searchtype=author&query=Fan%2C+W">W. Fan</a>, <a href="/search/nucl-ex?searchtype=author&query=Fries%2C+R">R. Fries</a>, <a href="/search/nucl-ex?searchtype=author&query=Gale%2C+C">C. Gale</a>, <a href="/search/nucl-ex?searchtype=author&query=He%2C+Y">Y. He</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinz%2C+U">U. Heinz</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacak%2C+B+V">B. V. Jacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacobs%2C+P+M">P. M. Jacobs</a>, <a href="/search/nucl-ex?searchtype=author&query=Jeon%2C+S">S. Jeon</a>, <a href="/search/nucl-ex?searchtype=author&query=Kauder%2C+K">K. Kauder</a>, <a href="/search/nucl-ex?searchtype=author&query=Ke%2C+W">W. Ke</a>, <a href="/search/nucl-ex?searchtype=author&query=Khalaj%2C+E">E. Khalaj</a>, <a href="/search/nucl-ex?searchtype=author&query=Kordell%2C+M">M. Kordell II</a>, <a href="/search/nucl-ex?searchtype=author&query=Kumar%2C+A">A. Kumar</a>, <a href="/search/nucl-ex?searchtype=author&query=Luo%2C+T">T. Luo</a>, <a href="/search/nucl-ex?searchtype=author&query=Majumder%2C+A">A. Majumder</a> , et al. (19 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="1812.06366v2-abstract-short" style="display: inline;"> The modification of jet substructure in relativistic heavy-ion collisions is studied using JETSCAPE, a publicly available software package containing a framework for Monte Carlo event generators. Multi-stage jet evolution in JETSCAPE provides an integrated description of jet quenching by combining multiple models, with each becoming active at a different stage of the parton shower evolution. Jet s… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1812.06366v2-abstract-full').style.display = 'inline'; document.getElementById('1812.06366v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1812.06366v2-abstract-full" style="display: none;"> The modification of jet substructure in relativistic heavy-ion collisions is studied using JETSCAPE, a publicly available software package containing a framework for Monte Carlo event generators. Multi-stage jet evolution in JETSCAPE provides an integrated description of jet quenching by combining multiple models, with each becoming active at a different stage of the parton shower evolution. Jet substructure modification due to different aspects of jet quenching is studied using jet shape and jet fragmentation observables. Various combinations of jet energy loss models are exploed, with medium background provided by (2 + 1)-D VISHNU with TRENTo+freestreaming initial conditions. Results reported here are from simulations performed within JETSCAPE framework. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1812.06366v2-abstract-full').style.display = 'none'; document.getElementById('1812.06366v2-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, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 December, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">4 pages, 3 figures, Proceedings of Hard Probes 2018, 30 September-5 October, Aix-Les-Bains, France</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1805.04084">arXiv:1805.04084</a> <span> [<a href="https://arxiv.org/pdf/1805.04084">pdf</a>, <a href="https://arxiv.org/format/1805.04084">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.123.022301">10.1103/PhysRevLett.123.022301 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Beam-energy and centrality dependence of direct-photon emission from ultra-relativistic heavy-ion collisions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adare%2C+A">A. Adare</a>, <a href="/search/nucl-ex?searchtype=author&query=Afanasiev%2C+S">S. Afanasiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Akimoto%2C+R">R. Akimoto</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Bataineh%2C+H">H. Al-Bataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+J">J. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Alfred%2C+M">M. Alfred</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Jamel%2C+A">A. Al-Jamel</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Ta%27ani%2C+H">H. Al-Ta'ani</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-ex?searchtype=author&query=Apadula%2C+N">N. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&query=Aphecetche%2C+L">L. Aphecetche</a>, <a href="/search/nucl-ex?searchtype=author&query=Aramaki%2C+Y">Y. Aramaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Armendariz%2C+R">R. Armendariz</a>, <a href="/search/nucl-ex?searchtype=author&query=Aronson%2C+S+H">S. H. Aronson</a>, <a href="/search/nucl-ex?searchtype=author&query=Asai%2C+J">J. Asai</a>, <a href="/search/nucl-ex?searchtype=author&query=Asano%2C+H">H. Asano</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=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Averbeck%2C+R">R. Averbeck</a>, <a href="/search/nucl-ex?searchtype=author&query=Awes%2C+T+C">T. C. Awes</a>, <a href="/search/nucl-ex?searchtype=author&query=Azmoun%2C+B">B. Azmoun</a> , et al. (648 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1805.04084v2-abstract-short" style="display: inline;"> The PHENIX collaboration presents first measurements of low-momentum ($0.4<p_T<3$ GeV/$c$) direct-photon yields from Au$+$Au collisions at $\sqrt{s_{_{NN}}}$=39 and 62.4 GeV. For both beam energies the direct-photon yields are substantially enhanced with respect to expectations from prompt processes, similar to the yields observed in Au$+$Au collisions at $\sqrt{s_{_{NN}}}$=200. Analyzing the phot… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1805.04084v2-abstract-full').style.display = 'inline'; document.getElementById('1805.04084v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1805.04084v2-abstract-full" style="display: none;"> The PHENIX collaboration presents first measurements of low-momentum ($0.4<p_T<3$ GeV/$c$) direct-photon yields from Au$+$Au collisions at $\sqrt{s_{_{NN}}}$=39 and 62.4 GeV. For both beam energies the direct-photon yields are substantially enhanced with respect to expectations from prompt processes, similar to the yields observed in Au$+$Au collisions at $\sqrt{s_{_{NN}}}$=200. Analyzing the photon yield as a function of the experimental observable $dN_{\rm ch}/d畏$ reveals that the low-momentum ($>$1\,GeV/$c$) direct-photon yield $dN_纬^{\rm dir}/d畏$ is a smooth function of $dN_{\rm ch}/d畏$ and can be well described as proportional to $(dN_{\rm ch}/d畏)^伪$ with $伪{\approx}1.25$. This scaling behavior holds for a wide range of beam energies at the Relativistic Heavy Ion Collider and the Large Hadron Collider, for centrality selected samples, as well as for different, $A$$+$$A$ collision systems. At a given beam energy the scaling also holds for high $p_T$ ($>5$\,GeV/$c$) but when results from different collision energies are compared, an additional $\sqrt{s_{_{NN}}}$-dependent multiplicative factor is needed to describe the integrated-direct-photon yield. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1805.04084v2-abstract-full').style.display = 'none'; document.getElementById('1805.04084v2-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 June, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 May, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">673 authors from 82 institutions, 10 pages, 4 figures. v2 is version accepted for publication in Physical Review Letters. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 123, 022301 (2019) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1711.09003">arXiv:1711.09003</a> <span> [<a href="https://arxiv.org/pdf/1711.09003">pdf</a>, <a href="https://arxiv.org/format/1711.09003">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.98.014912">10.1103/PhysRevC.98.014912 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of emission angle anisotropy via long-range angular correlations with high $p_T$ hadrons in $d$$+$Au and $p$$+$$p$ collisions at $\sqrt{s_{_{NN}}}=200$ GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adare%2C+A">A. Adare</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Bataineh%2C+H">H. Al-Bataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+J">J. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Alfred%2C+M">M. Alfred</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-ex?searchtype=author&query=Apadula%2C+N">N. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&query=Aramaki%2C+Y">Y. Aramaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Averbeck%2C+R">R. Averbeck</a>, <a href="/search/nucl-ex?searchtype=author&query=Awes%2C+T+C">T. C. Awes</a>, <a href="/search/nucl-ex?searchtype=author&query=Azmoun%2C+B">B. Azmoun</a>, <a href="/search/nucl-ex?searchtype=author&query=Babintsev%2C+V">V. Babintsev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bagoly%2C+A">A. Bagoly</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+M">M. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Baksay%2C+G">G. Baksay</a>, <a href="/search/nucl-ex?searchtype=author&query=Baksay%2C+L">L. Baksay</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K+N">K. N. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bassalleck%2C+B">B. Bassalleck</a>, <a href="/search/nucl-ex?searchtype=author&query=Basye%2C+A+T">A. T. Basye</a>, <a href="/search/nucl-ex?searchtype=author&query=Bathe%2C+S">S. Bathe</a>, <a href="/search/nucl-ex?searchtype=author&query=Baublis%2C+V">V. Baublis</a> , et al. (449 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="1711.09003v2-abstract-short" style="display: inline;"> We present measurements of two-particle angular correlations between high-transverse-momentum ($2<p_T<11$ GeV/$c$) $蟺^0$ observed at midrapidity ($|畏|<0.35$) and particles produced either at forward ($3.1<畏<3.9$) or backward ($-3.7<畏<-3.1$) rapidity in $d$$+$Au and $p$$+$$p$ collisions at $\sqrt{s_{_{NN}}}=200$ GeV. The azimuthal angle correlations for particle pairs with this large rapidity gap i… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1711.09003v2-abstract-full').style.display = 'inline'; document.getElementById('1711.09003v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1711.09003v2-abstract-full" style="display: none;"> We present measurements of two-particle angular correlations between high-transverse-momentum ($2<p_T<11$ GeV/$c$) $蟺^0$ observed at midrapidity ($|畏|<0.35$) and particles produced either at forward ($3.1<畏<3.9$) or backward ($-3.7<畏<-3.1$) rapidity in $d$$+$Au and $p$$+$$p$ collisions at $\sqrt{s_{_{NN}}}=200$ GeV. The azimuthal angle correlations for particle pairs with this large rapidity gap in the Au-going direction exhibit a ridge-like structure that persists up to $p_T{\approx}6$ GeV/$c$ and which strongly depends on collision centrality, which is a similar characteristic to the hydrodynamical particle flow in A+A collisions. The ridge-like structure is absent in the $d$-going direction as well as in $p$$+$$p$ collisions, in the transverse-momentum range studied. The results indicate that the ridge-like structure is shifted in the Au-going direction toward more central collisions, similar to the charged-particle pseudorapidity distributions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1711.09003v2-abstract-full').style.display = 'none'; document.getElementById('1711.09003v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 July, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 24 November, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">474 authors, 18 pages, 13 figures, 1 table. v2 is version accepted for publication in Phys. Rev. C Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 98, 014912 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1709.05649">arXiv:1709.05649</a> <span> [<a href="https://arxiv.org/pdf/1709.05649">pdf</a>, <a href="https://arxiv.org/format/1709.05649">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.97.064911">10.1103/PhysRevC.97.064911 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> L茅vy-stable two-pion Bose-Einstein correlations in $\sqrt{s_{_{NN}}}=200$ GeV Au$+$Au collisions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adare%2C+A">A. Adare</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Akimoto%2C+R">R. Akimoto</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+J">J. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Alfred%2C+M">M. Alfred</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Ta%27ani%2C+H">H. Al-Ta'ani</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-ex?searchtype=author&query=Apadula%2C+N">N. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&query=Aramaki%2C+Y">Y. Aramaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Asano%2C+H">H. Asano</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=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Awes%2C+T+C">T. C. Awes</a>, <a href="/search/nucl-ex?searchtype=author&query=Azmoun%2C+B">B. Azmoun</a>, <a href="/search/nucl-ex?searchtype=author&query=Babintsev%2C+V">V. Babintsev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bagoly%2C+A">A. Bagoly</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+M">M. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bannier%2C+B">B. Bannier</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K+N">K. N. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bassalleck%2C+B">B. Bassalleck</a>, <a href="/search/nucl-ex?searchtype=author&query=Bathe%2C+S">S. Bathe</a>, <a href="/search/nucl-ex?searchtype=author&query=Baublis%2C+V">V. Baublis</a> , et al. (422 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1709.05649v3-abstract-short" style="display: inline;"> We present a detailed measurement of charged two-pion correlation functions in 0%-30% centrality $\sqrt{s_{_{NN}}}=200$ GeV Au$+$Au collisions by the PHENIX experiment at the Relativistic Heavy Ion Collider. The data are well described by Bose-Einstein correlation functions stemming from L茅vy-stable source distributions. Using a fine transverse momentum binning, we extract the correlation strength… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1709.05649v3-abstract-full').style.display = 'inline'; document.getElementById('1709.05649v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1709.05649v3-abstract-full" style="display: none;"> We present a detailed measurement of charged two-pion correlation functions in 0%-30% centrality $\sqrt{s_{_{NN}}}=200$ GeV Au$+$Au collisions by the PHENIX experiment at the Relativistic Heavy Ion Collider. The data are well described by Bose-Einstein correlation functions stemming from L茅vy-stable source distributions. Using a fine transverse momentum binning, we extract the correlation strength parameter $位$, the L茅vy index of stability $伪$ and the L茅vy length scale parameter $R$ as a function of average transverse mass of the pair $m_T$. We find that the positively and the negatively charged pion pairs yield consistent results, and their correlation functions are represented, within uncertainties, by the same L茅vy-stable source functions. The $位(m_T)$ measurements indicate a decrease of the strength of the correlations at low $m_T$. The L茅vy length scale parameter $R(m_T)$ decreases with increasing $m_T$, following a hydrodynamically predicted type of scaling behavior. The values of the L茅vy index of stability $伪$ are found to be significantly lower than the Gaussian case of $伪=2$, but also significantly larger than the conjectured value that may characterize the critical point of a second-order quark-hadron phase transition. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1709.05649v3-abstract-full').style.display = 'none'; document.getElementById('1709.05649v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 September, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 September, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">448 authors, 25 pages, 11 figures, 4 tables, 2010 data. v3 is version accepted for publication in Phys. Rev. C with some Table II numbers and Fig. 5 updated to match publication. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 97, 064911 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1509.07758">arXiv:1509.07758</a> <span> [<a href="https://arxiv.org/pdf/1509.07758">pdf</a>, <a href="https://arxiv.org/ps/1509.07758">ps</a>, <a href="https://arxiv.org/format/1509.07758">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.94.064901">10.1103/PhysRevC.94.064901 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Azimuthally anisotropic emission of low-momentum direct photons in Au$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adare%2C+A">A. Adare</a>, <a href="/search/nucl-ex?searchtype=author&query=Afanasiev%2C+S">S. Afanasiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Akimoto%2C+R">R. Akimoto</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Bataineh%2C+H">H. Al-Bataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+J">J. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Alfred%2C+M">M. Alfred</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Ta%27ani%2C+H">H. Al-Ta'ani</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-ex?searchtype=author&query=Apadula%2C+N">N. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&query=Aramaki%2C+Y">Y. Aramaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Asano%2C+H">H. Asano</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=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Averbeck%2C+R">R. Averbeck</a>, <a href="/search/nucl-ex?searchtype=author&query=Awes%2C+T+C">T. C. Awes</a>, <a href="/search/nucl-ex?searchtype=author&query=Azmoun%2C+B">B. Azmoun</a>, <a href="/search/nucl-ex?searchtype=author&query=Babintsev%2C+V">V. Babintsev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+M">M. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Baksay%2C+G">G. Baksay</a>, <a href="/search/nucl-ex?searchtype=author&query=Baksay%2C+L">L. Baksay</a>, <a href="/search/nucl-ex?searchtype=author&query=Bandara%2C+N+S">N. S. Bandara</a> , et al. (527 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="1509.07758v2-abstract-short" style="display: inline;"> The PHENIX experiment at the Relativistic Heavy Ion Collider has measured 2nd and 3rd order Fourier coefficients of the azimuthal distributions of direct photons emitted at midrapidity in Au$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV for various collision centralities. Combining two different analysis techniques, results were obtained in the transverse momentum range of $0.4<p_{T}<4.0$ GeV/$c$.… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1509.07758v2-abstract-full').style.display = 'inline'; document.getElementById('1509.07758v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1509.07758v2-abstract-full" style="display: none;"> The PHENIX experiment at the Relativistic Heavy Ion Collider has measured 2nd and 3rd order Fourier coefficients of the azimuthal distributions of direct photons emitted at midrapidity in Au$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV for various collision centralities. Combining two different analysis techniques, results were obtained in the transverse momentum range of $0.4<p_{T}<4.0$ GeV/$c$. At low $p_T$ the second-order coefficients, $v_2$, are similar to the ones observed in hadrons. Third order coefficients, $v_3$, are nonzero and almost independent of centrality. These new results on $v_2$ and $v_3$, combined with previously published results on yields, are compared to model calculations that provide yields and asymmetries in the same framework. Those models are challenged to explain simultaneously the observed large yield and large azimuthal anisotropies. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1509.07758v2-abstract-full').style.display = 'none'; document.getElementById('1509.07758v2-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 December, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 25 September, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2015. </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">552 authors, 15 pages, 9 figures, 3 tables, 2007 and 2010 data. v2 is version accepted for publication by Phys. Rev. C. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 94, 064901 (2016) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1509.06735">arXiv:1509.06735</a> <span> [<a href="https://arxiv.org/pdf/1509.06735">pdf</a>, <a href="https://arxiv.org/ps/1509.06735">ps</a>, <a href="https://arxiv.org/format/1509.06735">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.93.024911">10.1103/PhysRevC.93.024911 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Scaling properties of fractional momentum loss of high-pT hadrons in nucleus-nucleus collisions at $\sqrt{s_{_{NN}}}$ from 62.4 GeV to 2.76 TeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adare%2C+A">A. Adare</a>, <a href="/search/nucl-ex?searchtype=author&query=Afanasiev%2C+S">S. Afanasiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Akimoto%2C+R">R. Akimoto</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Bataineh%2C+H">H. Al-Bataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+J">J. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Alfred%2C+M">M. Alfred</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Ta%27ani%2C+H">H. Al-Ta'ani</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-ex?searchtype=author&query=Apadula%2C+N">N. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&query=Aphecetche%2C+L">L. Aphecetche</a>, <a href="/search/nucl-ex?searchtype=author&query=Aramaki%2C+Y">Y. Aramaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Armendariz%2C+R">R. Armendariz</a>, <a href="/search/nucl-ex?searchtype=author&query=Aronson%2C+S+H">S. H. Aronson</a>, <a href="/search/nucl-ex?searchtype=author&query=Asai%2C+J">J. Asai</a>, <a href="/search/nucl-ex?searchtype=author&query=Asano%2C+H">H. Asano</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=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Averbeck%2C+R">R. Averbeck</a>, <a href="/search/nucl-ex?searchtype=author&query=Awes%2C+T+C">T. C. Awes</a>, <a href="/search/nucl-ex?searchtype=author&query=Azmoun%2C+B">B. Azmoun</a>, <a href="/search/nucl-ex?searchtype=author&query=Babintsev%2C+V">V. Babintsev</a> , et al. (605 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="1509.06735v2-abstract-short" style="display: inline;"> Measurements of the fractional momentum loss ($S_{\rm loss}\equiv未p_T/p_T$) of high-transverse-momentum-identified hadrons in heavy ion collisions are presented. Using $蟺^0$ in Au$+$Au and Cu$+$Cu collisions at $\sqrt{s_{_{NN}}}=62.4$ and 200 GeV measured by the PHENIX experiment at the Relativistic Heavy Ion Collider and and charged hadrons in Pb$+$Pb collisions measured by the ALICE experiment a… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1509.06735v2-abstract-full').style.display = 'inline'; document.getElementById('1509.06735v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1509.06735v2-abstract-full" style="display: none;"> Measurements of the fractional momentum loss ($S_{\rm loss}\equiv未p_T/p_T$) of high-transverse-momentum-identified hadrons in heavy ion collisions are presented. Using $蟺^0$ in Au$+$Au and Cu$+$Cu collisions at $\sqrt{s_{_{NN}}}=62.4$ and 200 GeV measured by the PHENIX experiment at the Relativistic Heavy Ion Collider and and charged hadrons in Pb$+$Pb collisions measured by the ALICE experiment at the Large Hadron Collider, we studied the scaling properties of $S_{\rm loss}$ as a function of a number of variables: the number of participants, $N_{\rm part}$, the number of quark participants, $N_{\rm qp}$, the charged-particle density, $dN_{\rm ch}/d畏$, and the Bjorken energy density times the equilibration time, $\varepsilon_{\rm Bj}蟿_{0}$. We find that the $p_T$ where $S_{\rm loss}$ has its maximum, varies both with centrality and collision energy. Above the maximum, $S_{\rm loss}$ tends to follow a power-law function with all four scaling variables. The data at $\sqrt{s_{_{NN}}}$=200 GeV and 2.76 TeV, for sufficiently high particle densities, have a common scaling of $S_{\rm loss}$ with $dN_{\rm ch}/d畏$ and $\varepsilon_{\rm Bj}蟿_{0}$, lending insight on the physics of parton energy loss. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1509.06735v2-abstract-full').style.display = 'none'; document.getElementById('1509.06735v2-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, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 September, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2015. </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">630 authors, 21 pages, 16 figures, 7 tables. v2 is version accepted by Phys. Rev. C. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 93, 024911 (2016) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1509.06727">arXiv:1509.06727</a> <span> [<a href="https://arxiv.org/pdf/1509.06727">pdf</a>, <a href="https://arxiv.org/ps/1509.06727">ps</a>, <a href="https://arxiv.org/format/1509.06727">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.93.024901">10.1103/PhysRevC.93.024901 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Transverse energy production and charged-particle multiplicity at midrapidity in various systems from $\sqrt{s_{NN}}=7.7$ to 200 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adare%2C+A">A. Adare</a>, <a href="/search/nucl-ex?searchtype=author&query=Afanasiev%2C+S">S. Afanasiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Akimoto%2C+R">R. Akimoto</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Bataineh%2C+H">H. Al-Bataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+J">J. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Alfred%2C+M">M. Alfred</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Jamel%2C+A">A. Al-Jamel</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Ta%27ani%2C+H">H. Al-Ta'ani</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-ex?searchtype=author&query=Apadula%2C+N">N. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&query=Aphecetche%2C+L">L. Aphecetche</a>, <a href="/search/nucl-ex?searchtype=author&query=Aramaki%2C+Y">Y. Aramaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Armendariz%2C+R">R. Armendariz</a>, <a href="/search/nucl-ex?searchtype=author&query=Aronson%2C+S+H">S. H. Aronson</a>, <a href="/search/nucl-ex?searchtype=author&query=Asai%2C+J">J. Asai</a>, <a href="/search/nucl-ex?searchtype=author&query=Asano%2C+H">H. Asano</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=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Averbeck%2C+R">R. Averbeck</a>, <a href="/search/nucl-ex?searchtype=author&query=Awes%2C+T+C">T. C. Awes</a>, <a href="/search/nucl-ex?searchtype=author&query=Azmoun%2C+B">B. Azmoun</a> , et al. (681 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="1509.06727v2-abstract-short" style="display: inline;"> Measurements of midrapidity charged particle multiplicity distributions, $dN_{\rm ch}/d畏$, and midrapidity transverse-energy distributions, $dE_T/d畏$, are presented for a variety of collision systems and energies. Included are distributions for Au$+$Au collisions at $\sqrt{s_{_{NN}}}=200$, 130, 62.4, 39, 27, 19.6, 14.5, and 7.7 GeV, Cu$+$Cu collisions at $\sqrt{s_{_{NN}}}=200$ and 62.4 GeV, Cu$+$A… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1509.06727v2-abstract-full').style.display = 'inline'; document.getElementById('1509.06727v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1509.06727v2-abstract-full" style="display: none;"> Measurements of midrapidity charged particle multiplicity distributions, $dN_{\rm ch}/d畏$, and midrapidity transverse-energy distributions, $dE_T/d畏$, are presented for a variety of collision systems and energies. Included are distributions for Au$+$Au collisions at $\sqrt{s_{_{NN}}}=200$, 130, 62.4, 39, 27, 19.6, 14.5, and 7.7 GeV, Cu$+$Cu collisions at $\sqrt{s_{_{NN}}}=200$ and 62.4 GeV, Cu$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV, U$+$U collisions at $\sqrt{s_{_{NN}}}=193$ GeV, $d$$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV, $^{3}$He$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV, and $p$$+$$p$ collisions at $\sqrt{s_{_{NN}}}=200$ GeV. Centrality-dependent distributions at midrapidity are presented in terms of the number of nucleon participants, $N_{\rm part}$, and the number of constituent quark participants, $N_{q{\rm p}}$. For all $A$$+$$A$ collisions down to $\sqrt{s_{_{NN}}}=7.7$ GeV, it is observed that the midrapidity data are better described by scaling with $N_{q{\rm p}}$ than scaling with $N_{\rm part}$. Also presented are estimates of the Bjorken energy density, $\varepsilon_{\rm BJ}$, and the ratio of $dE_T/d畏$ to $dN_{\rm ch}/d畏$, the latter of which is seen to be constant as a function of centrality for all systems. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1509.06727v2-abstract-full').style.display = 'none'; document.getElementById('1509.06727v2-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 February, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 September, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2015. </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">706 authors, 32 pages, 20 figures, 34 tables, 2004, 2005, 2008, 2010, 2011, and 2012 data. v2 is version accepted for publication in Phys. Rev. C</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 93, 024901 (2016) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1509.06337">arXiv:1509.06337</a> <span> [<a href="https://arxiv.org/pdf/1509.06337">pdf</a>, <a href="https://arxiv.org/ps/1509.06337">ps</a>, <a href="https://arxiv.org/format/1509.06337">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.93.024904">10.1103/PhysRevC.93.024904 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> $蠁$ meson production in the forward/backward rapidity region in Cu$+$Au collisions at $\sqrt{s_{NN}}=200$ GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adare%2C+A">A. Adare</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Akimoto%2C+R">R. Akimoto</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+J">J. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Alfred%2C+M">M. Alfred</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Ta%27ani%2C+H">H. Al-Ta'ani</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrews%2C+K+R">K. R. Andrews</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-ex?searchtype=author&query=Apadula%2C+N">N. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&query=Appelt%2C+E">E. Appelt</a>, <a href="/search/nucl-ex?searchtype=author&query=Aramaki%2C+Y">Y. Aramaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Armendariz%2C+R">R. Armendariz</a>, <a href="/search/nucl-ex?searchtype=author&query=Asano%2C+H">H. Asano</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=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Awes%2C+T+C">T. C. Awes</a>, <a href="/search/nucl-ex?searchtype=author&query=Azmoun%2C+B">B. Azmoun</a>, <a href="/search/nucl-ex?searchtype=author&query=Babintsev%2C+V">V. Babintsev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+M">M. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bandara%2C+N+S">N. S. Bandara</a>, <a href="/search/nucl-ex?searchtype=author&query=Bannier%2C+B">B. Bannier</a> , et al. (487 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="1509.06337v2-abstract-short" style="display: inline;"> The PHENIX experiment at the Relativistic Heavy Ion Collider (RHIC) has measured $蠁$ meson production and its nuclear modification in asymmetric Cu$+$Au heavy-ion collisions at $\sqrt{s_{NN}}=200$ GeV at both forward Cu-going direction ($1.2<y<2.2$) and backward Au-going direction ($-2.2<y<-1.2$), rapidities. The measurements are performed via the dimuon decay channel and reported as a function of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1509.06337v2-abstract-full').style.display = 'inline'; document.getElementById('1509.06337v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1509.06337v2-abstract-full" style="display: none;"> The PHENIX experiment at the Relativistic Heavy Ion Collider (RHIC) has measured $蠁$ meson production and its nuclear modification in asymmetric Cu$+$Au heavy-ion collisions at $\sqrt{s_{NN}}=200$ GeV at both forward Cu-going direction ($1.2<y<2.2$) and backward Au-going direction ($-2.2<y<-1.2$), rapidities. The measurements are performed via the dimuon decay channel and reported as a function of the number of participating nucleons, rapidity, and transverse momentum. In the most central events, 0\%--20\% centrality, the $蠁$ meson yield integrated over $1<p_T<5$ GeV/$c$ prefers a smaller value, which means a larger nuclear modification, in the Cu-going direction compared to the Au-going direction. Additionally, the nuclear-modification factor in Cu$+$Au collisions averaged over all centrality is measured to be similar to the previous PHENIX result in $d$$+$Au collisions for these rapidities. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1509.06337v2-abstract-full').style.display = 'none'; document.getElementById('1509.06337v2-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 February, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 September, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2015. </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">512 authors, 15 pages, 11 figures, 8 tables, 2009 and 2012 data. v2 is the version accepted for publication in Phys. Rev. C. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 93, 024904 (2016) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1509.04667">arXiv:1509.04667</a> <span> [<a href="https://arxiv.org/pdf/1509.04667">pdf</a>, <a href="https://arxiv.org/format/1509.04667">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"> Dielectron production in Au$+$Au collisions at $\sqrt{s_{NN}}$=200 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adare%2C+A">A. Adare</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Akimoto%2C+R">R. Akimoto</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+J">J. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Alfred%2C+M">M. Alfred</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Ta%27ani%2C+H">H. Al-Ta'ani</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-ex?searchtype=author&query=Apadula%2C+N">N. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&query=Aramaki%2C+Y">Y. Aramaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Asano%2C+H">H. Asano</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=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Averbeck%2C+R">R. Averbeck</a>, <a href="/search/nucl-ex?searchtype=author&query=Awes%2C+T+C">T. C. Awes</a>, <a href="/search/nucl-ex?searchtype=author&query=Azmoun%2C+B">B. Azmoun</a>, <a href="/search/nucl-ex?searchtype=author&query=Babintsev%2C+V">V. Babintsev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+M">M. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bandara%2C+N+S">N. S. Bandara</a>, <a href="/search/nucl-ex?searchtype=author&query=Bannier%2C+B">B. Bannier</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K+N">K. N. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bassalleck%2C+B">B. Bassalleck</a>, <a href="/search/nucl-ex?searchtype=author&query=Bathe%2C+S">S. Bathe</a> , et al. (422 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1509.04667v2-abstract-short" style="display: inline;"> We present measurements of $e^+e^-$ production at midrapidity in Au$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV. The invariant yield is studied within the PHENIX detector acceptance over a wide range of mass ($m_{ee} <$ 5 GeV/$c^2$) and pair transverse momentum ($p_T$ $<$ 5 GeV/$c$), for minimum bias and for five centrality classes. The \ee yield is compared to the expectations from known sour… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1509.04667v2-abstract-full').style.display = 'inline'; document.getElementById('1509.04667v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1509.04667v2-abstract-full" style="display: none;"> We present measurements of $e^+e^-$ production at midrapidity in Au$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV. The invariant yield is studied within the PHENIX detector acceptance over a wide range of mass ($m_{ee} <$ 5 GeV/$c^2$) and pair transverse momentum ($p_T$ $<$ 5 GeV/$c$), for minimum bias and for five centrality classes. The \ee yield is compared to the expectations from known sources. In the low-mass region ($m_{ee}=0.30$--0.76 GeV/$c^2$) there is an enhancement that increases with centrality and is distributed over the entire pair \pt range measured. It is significantly smaller than previously reported by the PHENIX experiment and amounts to $2.3\pm0.4({\rm stat})\pm0.4({\rm syst})\pm0.2^{\rm model}$ or to $1.7\pm0.3({\rm stat})\pm0.3({\rm syst})\pm0.2^{\rm model}$ for minimum bias collisions when the open-heavy-flavor contribution is calculated with {\sc pythia} or {\sc mc@nlo}, respectively. The inclusive mass and $p_T$ distributions as well as the centrality dependence are well reproduced by model calculations where the enhancement mainly originates from the melting of the $蟻$ meson resonance as the system approaches chiral symmetry restoration. In the intermediate-mass region ($m_{ee}$ = 1.2--2.8 GeV/$c^2$), the data hint at a significant contribution in addition to the yield from the semileptonic decays of heavy-flavor mesons. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1509.04667v2-abstract-full').style.display = 'none'; document.getElementById('1509.04667v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 7 December, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 September, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2015. </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">447 authors, 38 pages, 38 figures, 9 tables, 2010 data. v2 is Phys. Rev. C accepted version. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1509.04657">arXiv:1509.04657</a> <span> [<a href="https://arxiv.org/pdf/1509.04657">pdf</a>, <a href="https://arxiv.org/format/1509.04657">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.116.122301">10.1103/PhysRevLett.116.122301 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Centrality-dependent modification of jet-production rates in deuteron-gold 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=Adare%2C+A">A. Adare</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Bataineh%2C+H">H. Al-Bataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+J">J. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Alfred%2C+M">M. Alfred</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-ex?searchtype=author&query=Apadula%2C+N">N. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&query=Aramaki%2C+Y">Y. Aramaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Asano%2C+H">H. Asano</a>, <a href="/search/nucl-ex?searchtype=author&query=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Averbeck%2C+R">R. Averbeck</a>, <a href="/search/nucl-ex?searchtype=author&query=Awes%2C+T+C">T. C. Awes</a>, <a href="/search/nucl-ex?searchtype=author&query=Azmoun%2C+B">B. Azmoun</a>, <a href="/search/nucl-ex?searchtype=author&query=Babintsev%2C+V">V. Babintsev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+M">M. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Baksay%2C+G">G. Baksay</a>, <a href="/search/nucl-ex?searchtype=author&query=Baksay%2C+L">L. Baksay</a>, <a href="/search/nucl-ex?searchtype=author&query=Bandara%2C+N+S">N. S. Bandara</a>, <a href="/search/nucl-ex?searchtype=author&query=Bannier%2C+B">B. Bannier</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K+N">K. N. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bassalleck%2C+B">B. Bassalleck</a>, <a href="/search/nucl-ex?searchtype=author&query=Basye%2C+A+T">A. T. Basye</a> , et al. (459 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="1509.04657v2-abstract-short" style="display: inline;"> Jet production rates are measured in $p$$+$$p$ and $d$$+$Au collisions at $\sqrt{s_{NN}}$=200 GeV recorded in 2008 with the PHENIX detector at the Relativistic Heavy Ion Collider. Jets are reconstructed using the $R=0.3$ anti-$k_{t}$ algorithm from energy deposits in the electromagnetic calorimeter and charged tracks in multi-wire proportional chambers, and the jet transverse momentum ($p_T$) spec… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1509.04657v2-abstract-full').style.display = 'inline'; document.getElementById('1509.04657v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1509.04657v2-abstract-full" style="display: none;"> Jet production rates are measured in $p$$+$$p$ and $d$$+$Au collisions at $\sqrt{s_{NN}}$=200 GeV recorded in 2008 with the PHENIX detector at the Relativistic Heavy Ion Collider. Jets are reconstructed using the $R=0.3$ anti-$k_{t}$ algorithm from energy deposits in the electromagnetic calorimeter and charged tracks in multi-wire proportional chambers, and the jet transverse momentum ($p_T$) spectra are corrected for the detector response. Spectra are reported for jets with $12<p_T<50$ GeV/$c$, within a pseudorapidity acceptance of $\left|畏\right|<0.3$. The nuclear-modification factor ($R_{d{\rm Au}}$) values for 0\%--100\% $d$$+$Au events are found to be consistent with unity, constraining the role of initial state effects on jet production. However, the centrality-selected $R_{d{\rm Au}}$ values and central-to-peripheral ratios ($R_{\rm CP}$) show large, $p_T$-dependent deviations from unity, which challenge the conventional models that relate hard-process rates and soft-particle production in collisions involving nuclei. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1509.04657v2-abstract-full').style.display = 'none'; document.getElementById('1509.04657v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 February, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 September, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2015. </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">484 authors, 9 pages, 2 figures, 2008 data. v2 is version accepted for publication in Phys. Rev. Lett. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 116, 122301 (2016) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1507.06273">arXiv:1507.06273</a> <span> [<a href="https://arxiv.org/pdf/1507.06273">pdf</a>, <a href="https://arxiv.org/format/1507.06273">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.115.142301">10.1103/PhysRevLett.115.142301 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurements of elliptic and triangular flow in high-multiplicity $^{3}$He$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adare%2C+A">A. Adare</a>, <a href="/search/nucl-ex?searchtype=author&query=Afanasiev%2C+S">S. Afanasiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Akimoto%2C+R">R. Akimoto</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Bataineh%2C+H">H. Al-Bataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+J">J. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Alfred%2C+M">M. Alfred</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Ta%27ani%2C+H">H. Al-Ta'ani</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrews%2C+K+R">K. R. Andrews</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-ex?searchtype=author&query=Apadula%2C+N">N. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&query=Aphecetche%2C+L">L. Aphecetche</a>, <a href="/search/nucl-ex?searchtype=author&query=Appelt%2C+E">E. Appelt</a>, <a href="/search/nucl-ex?searchtype=author&query=Aramaki%2C+Y">Y. Aramaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Armendariz%2C+R">R. Armendariz</a>, <a href="/search/nucl-ex?searchtype=author&query=Aronson%2C+S+H">S. H. Aronson</a>, <a href="/search/nucl-ex?searchtype=author&query=Asai%2C+J">J. Asai</a>, <a href="/search/nucl-ex?searchtype=author&query=Asano%2C+H">H. Asano</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=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Averbeck%2C+R">R. Averbeck</a>, <a href="/search/nucl-ex?searchtype=author&query=Awes%2C+T+C">T. C. Awes</a> , et al. (605 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="1507.06273v2-abstract-short" style="display: inline;"> We present the first measurement of elliptic ($v_2$) and triangular ($v_3$) flow in high-multiplicity $^{3}$He$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV. Two-particle correlations, where the particles have a large separation in pseudorapidity, are compared in $^{3}$He$+$Au and in $p$$+$$p$ collisions and indicate that collective effects dominate the second and third Fourier components for the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1507.06273v2-abstract-full').style.display = 'inline'; document.getElementById('1507.06273v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1507.06273v2-abstract-full" style="display: none;"> We present the first measurement of elliptic ($v_2$) and triangular ($v_3$) flow in high-multiplicity $^{3}$He$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV. Two-particle correlations, where the particles have a large separation in pseudorapidity, are compared in $^{3}$He$+$Au and in $p$$+$$p$ collisions and indicate that collective effects dominate the second and third Fourier components for the correlations observed in the $^{3}$He$+$Au system. The collective behavior is quantified in terms of elliptic $v_2$ and triangular $v_3$ anisotropy coefficients measured with respect to their corresponding event planes. The $v_2$ values are comparable to those previously measured in $d$$+$Au collisions at the same nucleon-nucleon center-of-mass energy. Comparison with various theoretical predictions are made, including to models where the hot spots created by the impact of the three $^{3}$He nucleons on the Au nucleus expand hydrodynamically to generate the triangular flow. The agreement of these models with data may indicate the formation of low-viscosity quark-gluon plasma even in these small collision systems. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1507.06273v2-abstract-full').style.display = 'none'; document.getElementById('1507.06273v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 August, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 July, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2015. </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">630 authors, 9 pages, 4 figures, 2 tables. v2 is the version accepted for publication by Physical Review Letters. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 115, 142301 (2015) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1506.08181">arXiv:1506.08181</a> <span> [<a href="https://arxiv.org/pdf/1506.08181">pdf</a>, <a href="https://arxiv.org/ps/1506.08181">ps</a>, <a href="https://arxiv.org/format/1506.08181">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.92.044909">10.1103/PhysRevC.92.044909 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> $蠁$ meson production in $d$$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=PHENIX+Collaboration"> PHENIX Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Adare%2C+A">A. Adare</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Bataineh%2C+H">H. Al-Bataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+J">J. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Alfred%2C+M">M. Alfred</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-ex?searchtype=author&query=Apadula%2C+N">N. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&query=Aramaki%2C+Y">Y. Aramaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Asano%2C+H">H. Asano</a>, <a href="/search/nucl-ex?searchtype=author&query=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Averbeck%2C+R">R. Averbeck</a>, <a href="/search/nucl-ex?searchtype=author&query=Awes%2C+T+C">T. C. Awes</a>, <a href="/search/nucl-ex?searchtype=author&query=Azmoun%2C+B">B. Azmoun</a>, <a href="/search/nucl-ex?searchtype=author&query=Babintsev%2C+V">V. Babintsev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+M">M. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Baksay%2C+G">G. Baksay</a>, <a href="/search/nucl-ex?searchtype=author&query=Baksay%2C+L">L. Baksay</a>, <a href="/search/nucl-ex?searchtype=author&query=Bandara%2C+N+S">N. S. Bandara</a>, <a href="/search/nucl-ex?searchtype=author&query=Bannier%2C+B">B. Bannier</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K+N">K. N. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bassalleck%2C+B">B. Bassalleck</a> , et al. (460 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="1506.08181v2-abstract-short" style="display: inline;"> The PHENIX experiment has measured $蠁$ meson production in $d$$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV using the dimuon and dielectron decay channels. The $蠁$ meson is measured in the forward (backward) $d$-going (Au-going) direction, $1.2<y<2.2$ ($-2.2<y<-1.2$) in the transverse-momentum ($p_T$) range from 1--7 GeV/$c$, and at midrapidity $|y|<0.35$ in the $p_T$ range below 7 GeV/$c$. The… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1506.08181v2-abstract-full').style.display = 'inline'; document.getElementById('1506.08181v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1506.08181v2-abstract-full" style="display: none;"> The PHENIX experiment has measured $蠁$ meson production in $d$$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV using the dimuon and dielectron decay channels. The $蠁$ meson is measured in the forward (backward) $d$-going (Au-going) direction, $1.2<y<2.2$ ($-2.2<y<-1.2$) in the transverse-momentum ($p_T$) range from 1--7 GeV/$c$, and at midrapidity $|y|<0.35$ in the $p_T$ range below 7 GeV/$c$. The $蠁$ meson invariant yields and nuclear-modification factors as a function of $p_T$, rapidity, and centrality are reported. An enhancement of $蠁$ meson production is observed in the Au-going direction, while suppression is seen in the $d$-going direction, and no modification is observed at midrapidity relative to the yield in $p$$+$$p$ collisions scaled by the number of binary collisions. Similar behavior was previously observed for inclusive charged hadrons and open heavy flavor indicating similar cold-nuclear-matter effects. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1506.08181v2-abstract-full').style.display = 'none'; document.getElementById('1506.08181v2-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 September, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 June, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2015. </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">484 authors, 16 pages, 12 figures, 6 tables. v1 is the version accepted for publication in Phys. Rev. C. Data tables for the points plotted in the figures are given in the paper itself</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 92, 044909 (2015) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1506.07834">arXiv:1506.07834</a> <span> [<a href="https://arxiv.org/pdf/1506.07834">pdf</a>, <a href="https://arxiv.org/ps/1506.07834">ps</a>, <a href="https://arxiv.org/format/1506.07834">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.93.011901">10.1103/PhysRevC.93.011901 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of higher cumulants of net-charge multiplicity distributions in Au$+$Au collisions at $\sqrt{s_{_{NN}}}=7.7-200$ GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adare%2C+A">A. Adare</a>, <a href="/search/nucl-ex?searchtype=author&query=Afanasiev%2C+S">S. Afanasiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Akimoto%2C+R">R. Akimoto</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Bataineh%2C+H">H. Al-Bataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+J">J. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Ta%27ani%2C+H">H. Al-Ta'ani</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-ex?searchtype=author&query=Apadula%2C+N">N. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&query=Aramaki%2C+Y">Y. Aramaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Asano%2C+H">H. Asano</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=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Averbeck%2C+R">R. Averbeck</a>, <a href="/search/nucl-ex?searchtype=author&query=Awes%2C+T+C">T. C. Awes</a>, <a href="/search/nucl-ex?searchtype=author&query=Azmoun%2C+B">B. Azmoun</a>, <a href="/search/nucl-ex?searchtype=author&query=Babintsev%2C+V">V. Babintsev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+M">M. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Baksay%2C+G">G. Baksay</a>, <a href="/search/nucl-ex?searchtype=author&query=Baksay%2C+L">L. Baksay</a>, <a href="/search/nucl-ex?searchtype=author&query=Bannier%2C+B">B. Bannier</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K+N">K. N. Barish</a> , et al. (487 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="1506.07834v2-abstract-short" style="display: inline;"> We report the measurement of cumulants ($C_n, n=1\ldots4$) of the net-charge distributions measured within pseudorapidity ($|畏|<0.35$) in Au$+$Au collisions at $\sqrt{s_{_{NN}}}=7.7-200$ GeV with the PHENIX experiment at the Relativistic Heavy Ion Collider. The ratios of cumulants (e.g. $C_1/C_2$, $C_3/C_1$) of the net-charge distributions, which can be related to volume independent susceptibility… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1506.07834v2-abstract-full').style.display = 'inline'; document.getElementById('1506.07834v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1506.07834v2-abstract-full" style="display: none;"> We report the measurement of cumulants ($C_n, n=1\ldots4$) of the net-charge distributions measured within pseudorapidity ($|畏|<0.35$) in Au$+$Au collisions at $\sqrt{s_{_{NN}}}=7.7-200$ GeV with the PHENIX experiment at the Relativistic Heavy Ion Collider. The ratios of cumulants (e.g. $C_1/C_2$, $C_3/C_1$) of the net-charge distributions, which can be related to volume independent susceptibility ratios, are studied as a function of centrality and energy. These quantities are important to understand the quantum-chromodynamics phase diagram and possible existence of a critical end point. The measured values are very well described by expectation from negative binomial distributions. We do not observe any nonmonotonic behavior in the ratios of the cumulants as a function of collision energy. The measured values of $C_1/C_2 = 渭/蟽^2$ and $C_3/C_1 = S蟽^3/渭$ can be directly compared to lattice quantum-chromodynamics calculations and thus allow extraction of both the chemical freeze-out temperature and the baryon chemical potential at each center-of-mass energy. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1506.07834v2-abstract-full').style.display = 'none'; document.getElementById('1506.07834v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 January, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 25 June, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2015. </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">512 authors, 8 pages, 4 figures, 1 table. v2 is version accepted for publication in Phys. Rev. C as a Rapid Communication. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 93, 011901 (2016) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1502.02730">arXiv:1502.02730</a> <span> [<a href="https://arxiv.org/pdf/1502.02730">pdf</a>, <a href="https://arxiv.org/format/1502.02730">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 - 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 Theory">nucl-th</span> </div> </div> <p class="title is-5 mathjax"> The Hot QCD White Paper: Exploring the Phases of QCD at RHIC and the LHC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Yasuyuki Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">Aaron Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Caines%2C+H">Helen Caines</a>, <a href="/search/nucl-ex?searchtype=author&query=Frawley%2C+A">Anthony Frawley</a>, <a href="/search/nucl-ex?searchtype=author&query=Heinz%2C+U">Ulrich Heinz</a>, <a href="/search/nucl-ex?searchtype=author&query=Jacak%2C+B">Barbara Jacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Jia%2C+J">Jiangyong Jia</a>, <a href="/search/nucl-ex?searchtype=author&query=Lappi%2C+T">Tuomas Lappi</a>, <a href="/search/nucl-ex?searchtype=author&query=Li%2C+W">Wei Li</a>, <a href="/search/nucl-ex?searchtype=author&query=Majumder%2C+A">Abhijit Majumder</a>, <a href="/search/nucl-ex?searchtype=author&query=Morrison%2C+D">David Morrison</a>, <a href="/search/nucl-ex?searchtype=author&query=Ploskon%2C+M">Mateusz Ploskon</a>, <a href="/search/nucl-ex?searchtype=author&query=Putschke%2C+J">Joern Putschke</a>, <a href="/search/nucl-ex?searchtype=author&query=Rajagopal%2C+K">Krishna Rajagopal</a>, <a href="/search/nucl-ex?searchtype=author&query=Rapp%2C+R">Ralf Rapp</a>, <a href="/search/nucl-ex?searchtype=author&query=Roland%2C+G">Gunther Roland</a>, <a href="/search/nucl-ex?searchtype=author&query=Sorensen%2C+P">Paul Sorensen</a>, <a href="/search/nucl-ex?searchtype=author&query=Wiedemann%2C+U">Urs Wiedemann</a>, <a href="/search/nucl-ex?searchtype=author&query=Xu%2C+N">Nu Xu</a>, <a href="/search/nucl-ex?searchtype=author&query=Zajc%2C+W+A">W. A. Zajc</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="1502.02730v1-abstract-short" style="display: inline;"> The past decade has seen huge advances in experimental measurements made in heavy ion collisions at the Relativistic Heavy Ion Collider (RHIC) and more recently at the Large Hadron Collider (LHC). These new data, in combination with theoretical advances from calculations made in a variety of frameworks, have led to a broad and deep knowledge of the properties of thermal QCD matter. Increasingly qu… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1502.02730v1-abstract-full').style.display = 'inline'; document.getElementById('1502.02730v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1502.02730v1-abstract-full" style="display: none;"> The past decade has seen huge advances in experimental measurements made in heavy ion collisions at the Relativistic Heavy Ion Collider (RHIC) and more recently at the Large Hadron Collider (LHC). These new data, in combination with theoretical advances from calculations made in a variety of frameworks, have led to a broad and deep knowledge of the properties of thermal QCD matter. Increasingly quantitative descriptions of the quark-gluon plasma (QGP) created in these collisions have established that the QGP is a strongly coupled liquid with the lowest value of specific viscosity ever measured. However, much remains to be learned about the precise nature of the initial state from which this liquid forms, how its properties vary across its phase diagram and how, at a microscopic level, the collective properties of this liquid emerge from the interactions among the individual quarks and gluons that must be visible if the liquid is probed with sufficiently high resolution. This white paper, prepared by the Hot QCD Writing Group as part of the U.S. Long Range Plan for Nuclear Physics, reviews the recent progress in the field of hot QCD and outlines the scientific opportunities in the next decade for resolving the outstanding issues in the field. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1502.02730v1-abstract-full').style.display = 'none'; document.getElementById('1502.02730v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 February, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2015. </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">110 pages, 33 figures, 429 references. Prepared as part of the U.S. Long-Range Plan for Nuclear Physics</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1410.2559">arXiv:1410.2559</a> <span> [<a href="https://arxiv.org/pdf/1410.2559">pdf</a>, <a href="https://arxiv.org/ps/1410.2559">ps</a>, <a href="https://arxiv.org/format/1410.2559">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"> Beam-energy and system-size dependence of the space-time extent of the pion emission source produced in heavy ion collisions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adare%2C+A">A. Adare</a>, <a href="/search/nucl-ex?searchtype=author&query=Afanasiev%2C+S">S. Afanasiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Akimoto%2C+R">R. Akimoto</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Bataineh%2C+H">H. Al-Bataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Ta%27ani%2C+H">H. Al-Ta'ani</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+J">J. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Alfred%2C+M">M. Alfred</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-ex?searchtype=author&query=Apadula%2C+N">N. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&query=Aphecetche%2C+L">L. Aphecetche</a>, <a href="/search/nucl-ex?searchtype=author&query=Aramaki%2C+Y">Y. Aramaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Armendariz%2C+R">R. Armendariz</a>, <a href="/search/nucl-ex?searchtype=author&query=Aronson%2C+S+H">S. H. Aronson</a>, <a href="/search/nucl-ex?searchtype=author&query=Asai%2C+J">J. Asai</a>, <a href="/search/nucl-ex?searchtype=author&query=Asano%2C+H">H. Asano</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=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Averbeck%2C+R">R. Averbeck</a>, <a href="/search/nucl-ex?searchtype=author&query=Awes%2C+T+C">T. C. Awes</a>, <a href="/search/nucl-ex?searchtype=author&query=Azmoun%2C+B">B. Azmoun</a>, <a href="/search/nucl-ex?searchtype=author&query=Babintsev%2C+V">V. Babintsev</a> , et al. (597 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="1410.2559v1-abstract-short" style="display: inline;"> Two-pion interferometry measurements are used to extract the Gaussian radii $R_{\rm out}$, $R_{\rm side}$, and $R_{\rm long}$, of the pion emission sources produced in Cu$+$Cu and Au$+$Au collisions at several beam collision energies $\sqrt{s_{_{NN}}}$ at PHENIX. The extracted radii, which are compared to recent STAR and ALICE data, show characteristic scaling patterns as a function of the initial… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1410.2559v1-abstract-full').style.display = 'inline'; document.getElementById('1410.2559v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1410.2559v1-abstract-full" style="display: none;"> Two-pion interferometry measurements are used to extract the Gaussian radii $R_{\rm out}$, $R_{\rm side}$, and $R_{\rm long}$, of the pion emission sources produced in Cu$+$Cu and Au$+$Au collisions at several beam collision energies $\sqrt{s_{_{NN}}}$ at PHENIX. The extracted radii, which are compared to recent STAR and ALICE data, show characteristic scaling patterns as a function of the initial transverse size $\bar{R}$ of the collision systems and the transverse mass $m_T$ of the emitted pion pairs, consistent with hydrodynamiclike expansion. Specific combinations of the three-dimensional radii that are sensitive to the medium expansion velocity and lifetime, and the pion emission time duration show nonmonotonic $\sqrt{s_{_{NN}}}$ dependencies. The nonmonotonic behaviors exhibited by these quantities point to a softening of the equation of state that may coincide with the critical end point in the phase diagram for nuclear matter. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1410.2559v1-abstract-full').style.display = 'none'; document.getElementById('1410.2559v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 October, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2014. </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">622 authors, 8 pages, 5 figures, data from 2005, 2007, and 2010. Submitted to Phys. Rev. Lett. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1409.1907">arXiv:1409.1907</a> <span> [<a href="https://arxiv.org/pdf/1409.1907">pdf</a>, <a href="https://arxiv.org/format/1409.1907">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"> Inclusive cross sections, charge ratio and double-helicity asymmetries for $蟺^+$ and $蟺^-$ production in $p$$+$$p$ collisions at $\sqrt{s}$=200 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adare%2C+A">A. Adare</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Akimoto%2C+R">R. Akimoto</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Ta%27ani%2C+H">H. Al-Ta'ani</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+J">J. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrews%2C+K+R">K. R. Andrews</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-ex?searchtype=author&query=Apadula%2C+N">N. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&query=Appelt%2C+E">E. Appelt</a>, <a href="/search/nucl-ex?searchtype=author&query=Aramaki%2C+Y">Y. Aramaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Armendariz%2C+R">R. Armendariz</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=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Awes%2C+T+C">T. C. Awes</a>, <a href="/search/nucl-ex?searchtype=author&query=Azmoun%2C+B">B. Azmoun</a>, <a href="/search/nucl-ex?searchtype=author&query=Babintsev%2C+V">V. Babintsev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+M">M. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bannier%2C+B">B. Bannier</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K+N">K. N. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bassalleck%2C+B">B. Bassalleck</a>, <a href="/search/nucl-ex?searchtype=author&query=Basye%2C+A+T">A. T. Basye</a>, <a href="/search/nucl-ex?searchtype=author&query=Bathe%2C+S">S. Bathe</a> , et al. (356 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="1409.1907v1-abstract-short" style="display: inline;"> We present the midrapidity charged pion invariant cross sections and the ratio of $蟺^-$-to-$蟺^+$ production ($5<p_T<13$ GeV/$c$), together with the double-helicity asymmetries ($5<p_T<12$ GeV/$c$) in polarized $p$$+$$p$ collisions at $\sqrt{s} = 200$ GeV. The cross section measurements are consistent with perturbative calculations in quantum chromodynamics within large uncertainties in the calcula… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1409.1907v1-abstract-full').style.display = 'inline'; document.getElementById('1409.1907v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1409.1907v1-abstract-full" style="display: none;"> We present the midrapidity charged pion invariant cross sections and the ratio of $蟺^-$-to-$蟺^+$ production ($5<p_T<13$ GeV/$c$), together with the double-helicity asymmetries ($5<p_T<12$ GeV/$c$) in polarized $p$$+$$p$ collisions at $\sqrt{s} = 200$ GeV. The cross section measurements are consistent with perturbative calculations in quantum chromodynamics within large uncertainties in the calculation due to the choice of factorization, renormalization, and fragmentation scales. However, the theoretical calculation of the ratio of $蟺^-$-to-$蟺^+$ production when considering these scale uncertainties overestimates the measured value, suggesting further investigation of the uncertainties on the charge-separated pion fragmentation functions is needed. Due to cancellations of uncertainties in the charge ratio, direct inclusion of these ratio data in future parameterizations should improve constraints on the flavor dependence of quark fragmentation functions to pions. By measuring charge-separated pion asymmetries, one can gain sensitivity to the sign of $螖G$ through the opposite sign of the up and down quark helicity distributions in conjunction with preferential fragmentation of positive pions from up quarks and negative pions from down quarks. The double-helicity asymmetries presented are sensitive to the gluon helicity distribution over an $x$ range of $\sim$0.03--0.16. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1409.1907v1-abstract-full').style.display = 'none'; document.getElementById('1409.1907v1-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 September, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2014. </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">381 authors, 13 pages, 8 figures, 4 tables, 2009 data. Submitted to Phys. Rev. D. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1409.0851">arXiv:1409.0851</a> <span> [<a href="https://arxiv.org/pdf/1409.0851">pdf</a>, <a href="https://arxiv.org/format/1409.0851">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"> Search for dark photons from neutral meson decays in $p$$+$$p$ and $d$$+$Au collisions at $\sqrt{s_{_{NN}}}$=200 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adare%2C+A">A. Adare</a>, <a href="/search/nucl-ex?searchtype=author&query=Afanasiev%2C+S">S. Afanasiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Akimoto%2C+R">R. Akimoto</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Bataineh%2C+H">H. Al-Bataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Ta%27ani%2C+H">H. Al-Ta'ani</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+J">J. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Alfred%2C+M">M. Alfred</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrews%2C+K+R">K. R. Andrews</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-ex?searchtype=author&query=Apadula%2C+N">N. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&query=Aphecetche%2C+L">L. Aphecetche</a>, <a href="/search/nucl-ex?searchtype=author&query=Appelt%2C+E">E. Appelt</a>, <a href="/search/nucl-ex?searchtype=author&query=Aramaki%2C+Y">Y. Aramaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Armendariz%2C+R">R. Armendariz</a>, <a href="/search/nucl-ex?searchtype=author&query=Asai%2C+J">J. Asai</a>, <a href="/search/nucl-ex?searchtype=author&query=Asano%2C+H">H. Asano</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=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Averbeck%2C+R">R. Averbeck</a>, <a href="/search/nucl-ex?searchtype=author&query=Awes%2C+T+C">T. C. Awes</a>, <a href="/search/nucl-ex?searchtype=author&query=Azmoun%2C+B">B. Azmoun</a> , et al. (556 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="1409.0851v3-abstract-short" style="display: inline;"> The standard model (SM) of particle physics is spectacularly successful, yet the measured value of the muon anomalous magnetic moment $(g-2)_渭$ deviates from SM calculations by 3.6$蟽$. Several theoretical models attribute this to the existence of a "dark photon," an additional U(1) gauge boson, which is weakly coupled to ordinary photons. The PHENIX experiment at the Relativistic Heavy Ion Collide… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1409.0851v3-abstract-full').style.display = 'inline'; document.getElementById('1409.0851v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1409.0851v3-abstract-full" style="display: none;"> The standard model (SM) of particle physics is spectacularly successful, yet the measured value of the muon anomalous magnetic moment $(g-2)_渭$ deviates from SM calculations by 3.6$蟽$. Several theoretical models attribute this to the existence of a "dark photon," an additional U(1) gauge boson, which is weakly coupled to ordinary photons. The PHENIX experiment at the Relativistic Heavy Ion Collider has searched for a dark photon, $U$, in $蟺^0,畏\rightarrow 纬e^+e^-$ decays and obtained upper limits of $\mathcal{O}(2\times10^{-6})$ on $U$-$纬$ mixing at 90% CL for the mass range $30<m_U<90$ MeV/$c^2$. Combined with other experimental limits, the remaining region in the $U$-$纬$ mixing parameter space that can explain the $(g-2)_渭$ deviation from its SM value is nearly completely excluded at the 90% confidence level, with only a small region of $29<m_U<32$ MeV/$c^2$ remaining. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1409.0851v3-abstract-full').style.display = 'none'; document.getElementById('1409.0851v3-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 March, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 September, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2014. </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">580 authors, 9 pages, 5 figures. v2 includes recent BABAR results w/changed title and formatted for Phys. Rev. C. v3 is version accepted for PRC Rapid Communications. Published version will be at http://www.phenix.bnl.gov/phenix/WWW/info/pp1/165 Plain text data tables will be at http://www.phenix.bnl.gov/papers.html</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1406.3541">arXiv:1406.3541</a> <span> [<a href="https://arxiv.org/pdf/1406.3541">pdf</a>, <a href="https://arxiv.org/format/1406.3541">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.90.072008">10.1103/PhysRevD.90.072008 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Cross Section and Transverse Single-Spin Asymmetry of $畏$ Mesons in $p^{\uparrow}+p$ Collisions at $\sqrt{s}=200$ GeV at Forward Rapidity </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adare%2C+A">A. Adare</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Akimoto%2C+R">R. Akimoto</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Bataineh%2C+H">H. Al-Bataineh</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+J">J. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Alfred%2C+M">M. Alfred</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-ex?searchtype=author&query=Apadula%2C+N">N. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&query=Aramaki%2C+Y">Y. Aramaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Asano%2C+H">H. Asano</a>, <a href="/search/nucl-ex?searchtype=author&query=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Averbeck%2C+R">R. Averbeck</a>, <a href="/search/nucl-ex?searchtype=author&query=Awes%2C+T+C">T. C. Awes</a>, <a href="/search/nucl-ex?searchtype=author&query=Azmoun%2C+B">B. Azmoun</a>, <a href="/search/nucl-ex?searchtype=author&query=Babintsev%2C+V">V. Babintsev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+M">M. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Baksay%2C+G">G. Baksay</a>, <a href="/search/nucl-ex?searchtype=author&query=Baksay%2C+L">L. Baksay</a>, <a href="/search/nucl-ex?searchtype=author&query=Bandara%2C+N+S">N. S. Bandara</a>, <a href="/search/nucl-ex?searchtype=author&query=Bannier%2C+B">B. Bannier</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K+N">K. N. Barish</a>, <a href="/search/nucl-ex?searchtype=author&query=Bassalleck%2C+B">B. Bassalleck</a> , et al. (460 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="1406.3541v2-abstract-short" style="display: inline;"> We present a measurement of the cross section and transverse single-spin asymmetry ($A_N$) for $畏$ mesons at large pseudorapidity from $\sqrt{s}=200$~GeV $p^{\uparrow}+p$ collisions. The measured cross section for $0.5<p_T<5.0$~GeV/$c$ and $3.0<|畏|<3.8$ is well described by a next-to-leading-order perturbative-quantum-chromodynamics calculation. The asymmetries $A_N$ have been measured as a functi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1406.3541v2-abstract-full').style.display = 'inline'; document.getElementById('1406.3541v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1406.3541v2-abstract-full" style="display: none;"> We present a measurement of the cross section and transverse single-spin asymmetry ($A_N$) for $畏$ mesons at large pseudorapidity from $\sqrt{s}=200$~GeV $p^{\uparrow}+p$ collisions. The measured cross section for $0.5<p_T<5.0$~GeV/$c$ and $3.0<|畏|<3.8$ is well described by a next-to-leading-order perturbative-quantum-chromodynamics calculation. The asymmetries $A_N$ have been measured as a function of Feynman-$x$ ($x_F$) from $0.2<|x_{F}|<0.7$, as well as transverse momentum ($p_T$) from $1.0<p_T<4.5$~GeV/$c$. The asymmetry averaged over positive $x_F$ is $\langle{A_{N}}\rangle=0.061{\pm}0.014$. The results are consistent with prior transverse single-spin measurements of forward $畏$ and $蟺^{0}$ mesons at various energies in overlapping $x_F$ ranges. Comparison of different particle species can help to determine the origin of the large observed asymmetries in $p^{\uparrow}+p$ collisions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1406.3541v2-abstract-full').style.display = 'none'; document.getElementById('1406.3541v2-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 September, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 13 June, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2014. </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">484 authors, 13 pages, 11 figures, 4 tables, 2008 data. v2 is version accepted by Phys. Rev. D. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be)publicly available at http://www.phenix.bnl.gov/papers.html</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1405.4260">arXiv:1405.4260</a> <span> [<a href="https://arxiv.org/pdf/1405.4260">pdf</a>, <a href="https://arxiv.org/ps/1405.4260">ps</a>, <a href="https://arxiv.org/format/1405.4260">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"> Low-mass vector-meson production at forward rapidity in $p$$+$$p$ collisions at $\sqrt{s}=200$ GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adare%2C+A">A. Adare</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C">C. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajitanand%2C+N+N">N. N. Ajitanand</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+Y">Y. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Akimoto%2C+R">R. Akimoto</a>, <a href="/search/nucl-ex?searchtype=author&query=Al-Ta%27ani%2C+H">H. Al-Ta'ani</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+J">J. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Alfred%2C+M">M. Alfred</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrews%2C+K+R">K. R. Andrews</a>, <a href="/search/nucl-ex?searchtype=author&query=Angerami%2C+A">A. Angerami</a>, <a href="/search/nucl-ex?searchtype=author&query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-ex?searchtype=author&query=Apadula%2C+N">N. Apadula</a>, <a href="/search/nucl-ex?searchtype=author&query=Appelt%2C+E">E. Appelt</a>, <a href="/search/nucl-ex?searchtype=author&query=Aramaki%2C+Y">Y. Aramaki</a>, <a href="/search/nucl-ex?searchtype=author&query=Armendariz%2C+R">R. Armendariz</a>, <a href="/search/nucl-ex?searchtype=author&query=Asano%2C+H">H. Asano</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=Atomssa%2C+E+T">E. T. Atomssa</a>, <a href="/search/nucl-ex?searchtype=author&query=Awes%2C+T+C">T. C. Awes</a>, <a href="/search/nucl-ex?searchtype=author&query=Azmoun%2C+B">B. Azmoun</a>, <a href="/search/nucl-ex?searchtype=author&query=Babintsev%2C+V">V. Babintsev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+M">M. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bandara%2C+N+S">N. S. Bandara</a>, <a href="/search/nucl-ex?searchtype=author&query=Bannier%2C+B">B. Bannier</a>, <a href="/search/nucl-ex?searchtype=author&query=Barish%2C+K+N">K. N. Barish</a> , et al. (445 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="1405.4260v1-abstract-short" style="display: inline;"> The PHENIX experiment at the Relativistic Heavy Ion Collider has measured low mass vector meson, $蠅$, $蟻$, and $蠁$, production through the dimuon decay channel at forward rapidity ($1.2<|y|<2.2$) in $p$$+$$p$ collisions at $\sqrt{s}=200$ GeV. The differential cross sections for these mesons are measured as a function of both $p_T$ and rapidity. We also report the integrated differential cross sect… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1405.4260v1-abstract-full').style.display = 'inline'; document.getElementById('1405.4260v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1405.4260v1-abstract-full" style="display: none;"> The PHENIX experiment at the Relativistic Heavy Ion Collider has measured low mass vector meson, $蠅$, $蟻$, and $蠁$, production through the dimuon decay channel at forward rapidity ($1.2<|y|<2.2$) in $p$$+$$p$ collisions at $\sqrt{s}=200$ GeV. The differential cross sections for these mesons are measured as a function of both $p_T$ and rapidity. We also report the integrated differential cross sections over $1<p_T<7$ GeV/$c$ and $1.2<|y|<2.2$: $d蟽/dy(蠅+蟻\rightarrow渭渭) = 80 \pm 6 \mbox{(stat)} \pm 12 \mbox{(syst)}$ nb and $d蟽/dy(蠁\rightarrow渭渭) = 27 \pm 3 \mbox{(stat)} \pm 4 \mbox{(syst)}$ nb. These results are compared with midrapidity measurements and calculations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1405.4260v1-abstract-full').style.display = 'none'; document.getElementById('1405.4260v1-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, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2014. </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">470 authors, 12 pages, 11 figures, 5 tables, 2009 data. Submitted to Phys. Rev. D Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html</span> </p> </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=Angerami%2C+A&start=50" class="pagination-next" >Next </a> <ul class="pagination-list"> <li> <a href="/search/?searchtype=author&query=Angerami%2C+A&start=0" class="pagination-link is-current" aria-label="Goto page 1">1 </a> </li> <li> <a href="/search/?searchtype=author&query=Angerami%2C+A&start=50" class="pagination-link " aria-label="Page 2" aria-current="page">2 </a> </li> </ul> </nav> <div class="is-hidden-tablet">  <span class="help" style="display: inline-block;"><a href="https://github.com/arXiv/arxiv-search/releases">Search v0.5.6 released 2020-02-24</a>  </span> 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