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</div> <div class="control"> <button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <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/1303.0901">arXiv:1303.0901</a> <span> [<a href="https://arxiv.org/pdf/1303.0901">pdf</a>, <a href="https://arxiv.org/ps/1303.0901">ps</a>, <a href="https://arxiv.org/format/1303.0901">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.89.044908">10.1103/PhysRevC.89.044908 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of Charge Multiplicity Asymmetry Correlations in High Energy Nucleus-Nucleus Collisions at 200 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alakhverdyants%2C+A+V">A. V. Alakhverdyants</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alford%2C+J">J. Alford</a>, <a href="/search/nucl-ex?searchtype=author&query=Anson%2C+C+D">C. D. Anson</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E">E. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Banerjee%2C+A">A. Banerjee</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnovska%2C+Z">Z. Barnovska</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a> , et al. (340 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1303.0901v2-abstract-short" style="display: inline;"> A study is reported of the same- and opposite-sign charge-dependent azimuthal correlations with respect to the event plane in Au+Au collisions at 200 GeV. The charge multiplicity asymmetries between the up/down and left/right hemispheres relative to the event plane are utilized. The contributions from statistical fluctuations and detector effects were subtracted from the (co-)variance of the obser… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1303.0901v2-abstract-full').style.display = 'inline'; document.getElementById('1303.0901v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1303.0901v2-abstract-full" style="display: none;"> A study is reported of the same- and opposite-sign charge-dependent azimuthal correlations with respect to the event plane in Au+Au collisions at 200 GeV. The charge multiplicity asymmetries between the up/down and left/right hemispheres relative to the event plane are utilized. The contributions from statistical fluctuations and detector effects were subtracted from the (co-)variance of the observed charge multiplicity asymmetries. In the mid- to most-central collisions, the same- (opposite-) sign pairs are preferentially emitted in back-to-back (aligned on the same-side) directions. The charge separation across the event plane, measured by the difference, $螖$, between the like- and unlike-sign up/down $-$ left/right correlations, is largest near the event plane. The difference is found to be proportional to the event-by-event final-state particle ellipticity (via the observed second-order harmonic $v^{\rm obs}_{2}$), where $螖=(1.3\pm1.4({\rm stat})^{+4.0}_{-1.0}({\rm syst}))\times10^{-5}+(3.2\pm0.2({\rm stat})^{+0.4}_{-0.3}({\rm syst}))\times10^{-3}v^{\rm obs}_{2}$ for 20-40% Au+Au collisions. The implications for the proposed chiral magnetic effect are discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1303.0901v2-abstract-full').style.display = 'none'; document.getElementById('1303.0901v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 April, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 4 March, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">27 pages, 25 figures, 2 tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> L. Adamczyk et al. (STAR Collaboration), Phys. Rev. C 89 (2014) 044908 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1302.3802">arXiv:1302.3802</a> <span> [<a href="https://arxiv.org/pdf/1302.3802">pdf</a>, <a href="https://arxiv.org/ps/1302.3802">ps</a>, <a href="https://arxiv.org/format/1302.3802">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"> Fluctuations of charge separation perpendicular to the event plane and local parity violation in sqrt(sNN)=200 GeV Au+Au collisions at RHIC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alford%2C+J">J. Alford</a>, <a href="/search/nucl-ex?searchtype=author&query=Anson%2C+C+D">C. D. Anson</a>, <a href="/search/nucl-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E">E. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Banerjee%2C+A">A. Banerjee</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnovska%2C+Z">Z. Barnovska</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhattarai"> Bhattarai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a> , et al. (343 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1302.3802v3-abstract-short" style="display: inline;"> Previous experimental results based on data (15 million events) collected by the STAR detector at RHIC suggest event-by-event charge separation fluctuations perpendicular to the event plane in non-central heavy-ion collisions. Here we present the correlator previously used split into its two component parts to reveal correlations parallel and perpendicular to the event plane. The results are from… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1302.3802v3-abstract-full').style.display = 'inline'; document.getElementById('1302.3802v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1302.3802v3-abstract-full" style="display: none;"> Previous experimental results based on data (15 million events) collected by the STAR detector at RHIC suggest event-by-event charge separation fluctuations perpendicular to the event plane in non-central heavy-ion collisions. Here we present the correlator previously used split into its two component parts to reveal correlations parallel and perpendicular to the event plane. The results are from a high statistics 200 GeV Au+Au collisions data set (57 million events) collected by the STAR experiment. We explicitly count units of charge separation from which we find clear evidence for more charge separation fluctuations perpendicular than parallel to the event plane. We also employ a modified correlator to study the possible P-even background in same and opposite charge correlations, and find that the P-even background may largely be explained by momentum conservation and collective motion. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1302.3802v3-abstract-full').style.display = 'none'; document.getElementById('1302.3802v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 October, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 February, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">10 pages, 9 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/1302.3168">arXiv:1302.3168</a> <span> [<a href="https://arxiv.org/pdf/1302.3168">pdf</a>, <a href="https://arxiv.org/ps/1302.3168">ps</a>, <a href="https://arxiv.org/format/1302.3168">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.88.034906">10.1103/PhysRevC.88.034906 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Freeze-out Dynamics via Charged Kaon Femtoscopy in sqrt(sNN)=200 GeV Central Au+Au Collisions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alford%2C+J">J. Alford</a>, <a href="/search/nucl-ex?searchtype=author&query=Anson%2C+C+D">C. D. Anson</a>, <a href="/search/nucl-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E">E. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Banerjee%2C+A">A. Banerjee</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnovska%2C+Z">Z. Barnovska</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhattarai"> Bhattarai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a> , et al. (343 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1302.3168v2-abstract-short" style="display: inline;"> We present measurements of three-dimensional correlation functions of like-sign low transverse momentum kaon pairs from sqrt(sNN)=200 GeV Au+Au collisions. A Cartesian surface-spherical harmonic decomposition technique was used to extract the kaon source function. The latter was found to have a three-dimensional Gaussian shape and can be adequately reproduced by Therminator event generator simulat… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1302.3168v2-abstract-full').style.display = 'inline'; document.getElementById('1302.3168v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1302.3168v2-abstract-full" style="display: none;"> We present measurements of three-dimensional correlation functions of like-sign low transverse momentum kaon pairs from sqrt(sNN)=200 GeV Au+Au collisions. A Cartesian surface-spherical harmonic decomposition technique was used to extract the kaon source function. The latter was found to have a three-dimensional Gaussian shape and can be adequately reproduced by Therminator event generator simulations with resonance contributions taken into account. Compared to the pion one, the kaon source function is generally narrower and does not have the long tail along the pair transverse momentum direction. The kaon Gaussian radii display a monotonic decrease with increasing transverse mass m_T over the interval of 0.55<=m_T<=1.15 GeV/c^2. While the kaon radii are adequately described by the m_T-scaling in the outward and sideward directions, in the longitudinal direction the lowest m_T value exceeds the expectations from a pure hydrodynamical model prediction. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1302.3168v2-abstract-full').style.display = 'none'; document.getElementById('1302.3168v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 September, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 13 February, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">8 pages, 4 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 88, 034906 (2013) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1301.6633">arXiv:1301.6633</a> <span> [<a href="https://arxiv.org/pdf/1301.6633">pdf</a>, <a href="https://arxiv.org/ps/1301.6633">ps</a>, <a href="https://arxiv.org/format/1301.6633">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.87.064902">10.1103/PhysRevC.87.064902 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> System size dependence of transverse momentum correlations at $\sqrt{s_{NN}}=$ 62.4 and 200 GeV at the BNL Relativistic Heavy Ion Collider </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alford%2C+J">J. Alford</a>, <a href="/search/nucl-ex?searchtype=author&query=Anson%2C+C+D">C. D. Anson</a>, <a href="/search/nucl-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E">E. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Banerjee%2C+A">A. Banerjee</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnovska%2C+Z">Z. Barnovska</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhattarai"> Bhattarai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a> , et al. (343 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1301.6633v2-abstract-short" style="display: inline;"> We present a study of the average transverse momentum ($p_t$) fluctuations and $p_t$ correlations for charged particles produced in Cu+Cu collisions at midrapidity for $\sqrt{s_{NN}} =$ 62.4 and 200 GeV. These results are compared with those published for Au+Au collisions at the same energies, to explore the system size dependence. In addition to the collision energy and system size dependence, th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1301.6633v2-abstract-full').style.display = 'inline'; document.getElementById('1301.6633v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1301.6633v2-abstract-full" style="display: none;"> We present a study of the average transverse momentum ($p_t$) fluctuations and $p_t$ correlations for charged particles produced in Cu+Cu collisions at midrapidity for $\sqrt{s_{NN}} =$ 62.4 and 200 GeV. These results are compared with those published for Au+Au collisions at the same energies, to explore the system size dependence. In addition to the collision energy and system size dependence, the $p_t$ correlation results have been studied as functions of the collision centralities, the ranges in $p_t$, the pseudorapidity $畏$, and the azimuthal angle $蠁$. The square root of the measured $p_t$ correlations when scaled by mean $p_t$ is found to be independent of both colliding beam energy and system size studied. Transport-based model calculations are found to have a better quantitative agreement with the measurements compared to models which incorporate only jetlike correlations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1301.6633v2-abstract-full').style.display = 'none'; document.getElementById('1301.6633v2-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 August, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 January, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages and 9 figures. Published in Physical Review C</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1301.2348">arXiv:1301.2348</a> <span> [<a href="https://arxiv.org/pdf/1301.2348">pdf</a>, <a href="https://arxiv.org/ps/1301.2348">ps</a>, <a href="https://arxiv.org/format/1301.2348">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.88.014902">10.1103/PhysRevC.88.014902 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Elliptic flow of identified hadrons in Au+Au collisions at $\sqrt{s_{NN}}=$ 7.7--62.4 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alford%2C+J">J. Alford</a>, <a href="/search/nucl-ex?searchtype=author&query=Anson%2C+C+D">C. D. Anson</a>, <a href="/search/nucl-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E">E. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Banerjee%2C+A">A. Banerjee</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnovska%2C+Z">Z. Barnovska</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhattarai"> Bhattarai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a> , et al. (342 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1301.2348v1-abstract-short" style="display: inline;"> Measurements of the elliptic flow, $v_{2}$, of identified hadrons ($蟺^{\pm}$, $K^{\pm}$, $K_{s}^{0}$, $p$, $\bar{p}$, $蠁$, $螞$, $\bar螞$, $螢^{-}$, $\bar螢^{+}$, $惟^{-}$, $\bar惟^{+}$) in Au+Au collisions at $\sqrt{s_{NN}}=$ 7.7, 11.5, 19.6, 27, 39 and 62.4 GeV are presented. The measurements were done at mid-rapidity using the Time Projection Chamber and the Time-of-Flight detectors of the STAR exper… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1301.2348v1-abstract-full').style.display = 'inline'; document.getElementById('1301.2348v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1301.2348v1-abstract-full" style="display: none;"> Measurements of the elliptic flow, $v_{2}$, of identified hadrons ($蟺^{\pm}$, $K^{\pm}$, $K_{s}^{0}$, $p$, $\bar{p}$, $蠁$, $螞$, $\bar螞$, $螢^{-}$, $\bar螢^{+}$, $惟^{-}$, $\bar惟^{+}$) in Au+Au collisions at $\sqrt{s_{NN}}=$ 7.7, 11.5, 19.6, 27, 39 and 62.4 GeV are presented. The measurements were done at mid-rapidity using the Time Projection Chamber and the Time-of-Flight detectors of the STAR experiment during the Beam Energy Scan program at RHIC. A significant difference in the $v_{2}$ values for particles and the corresponding anti-particles was observed at all transverse momenta for the first time. The difference increases with decreasing center-of-mass energy, $\sqrt{s_{NN}}$ (or increasing baryon chemical potential, $渭_{B}$) and is larger for the baryons as compared to the mesons. This implies that particles and anti-particles are no longer consistent with the universal number-of-constituent quark (NCQ) scaling of $v_{2}$ that was observed at $\sqrt{s_{NN}}=$ 200 GeV. However, for the group of particles NCQ scaling at $(m_{T}-m_{0})/n_{q}>$ 0.4 GeV/$c^{2}$ is not violated within $\pm$10%. The $v_{2}$ values for $蠁$ mesons at 7.7 and 11.5 GeV are approximately two standard deviations from the trend defined by the other hadrons at the highest measured $p_{T}$ values. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1301.2348v1-abstract-full').style.display = 'none'; document.getElementById('1301.2348v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 January, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2013. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1301.2347">arXiv:1301.2347</a> <span> [<a href="https://arxiv.org/pdf/1301.2347">pdf</a>, <a href="https://arxiv.org/ps/1301.2347">ps</a>, <a href="https://arxiv.org/format/1301.2347">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.110.142301">10.1103/PhysRevLett.110.142301 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of an energy-dependent difference in elliptic flow between particles and anti-particles in relativistic heavy ion collisions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alford%2C+J">J. Alford</a>, <a href="/search/nucl-ex?searchtype=author&query=Anson%2C+C+D">C. D. Anson</a>, <a href="/search/nucl-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E">E. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Banerjee%2C+A">A. Banerjee</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnovska%2C+Z">Z. Barnovska</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhattarai"> Bhattarai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a> , et al. (342 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1301.2347v1-abstract-short" style="display: inline;"> Elliptic flow ($v_{2}$) values for identified particles at mid-rapidity in Au+Au collisions, measured by the STAR experiment in the Beam Energy Scan at RHIC at $\sqrt{s_{NN}}=$ 7.7--62.4 GeV, are presented. A beam-energy dependent difference of the values of $v_{2}$ between particles and corresponding anti-particles was observed. The difference increases with decreasing beam energy and is larger f… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1301.2347v1-abstract-full').style.display = 'inline'; document.getElementById('1301.2347v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1301.2347v1-abstract-full" style="display: none;"> Elliptic flow ($v_{2}$) values for identified particles at mid-rapidity in Au+Au collisions, measured by the STAR experiment in the Beam Energy Scan at RHIC at $\sqrt{s_{NN}}=$ 7.7--62.4 GeV, are presented. A beam-energy dependent difference of the values of $v_{2}$ between particles and corresponding anti-particles was observed. The difference increases with decreasing beam energy and is larger for baryons compared to mesons. This implies that, at lower energies, particles and anti-particles are not consistent with the universal number-of-constituent-quark (NCQ) scaling of $v_{2}$ that was observed at $\sqrt{s_{NN}}=$ 200 GeV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1301.2347v1-abstract-full').style.display = 'none'; document.getElementById('1301.2347v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 January, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2013. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1301.2187">arXiv:1301.2187</a> <span> [<a href="https://arxiv.org/pdf/1301.2187">pdf</a>, <a href="https://arxiv.org/format/1301.2187">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.88.014904">10.1103/PhysRevC.88.014904 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Third Harmonic Flow of Charged Particles in Au+Au Collisions at sqrtsNN = 200 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Adkins%2C+J+K">J. K. Adkins</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alford%2C+J">J. Alford</a>, <a href="/search/nucl-ex?searchtype=author&query=Anson%2C+C+D">C. D. Anson</a>, <a href="/search/nucl-ex?searchtype=author&query=Aparin%2C+A">A. Aparin</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E">E. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Banerjee%2C+A">A. Banerjee</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnovska%2C+Z">Z. Barnovska</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a> , et al. (339 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="1301.2187v2-abstract-short" style="display: inline;"> We report measurements of the third harmonic coefficient of the azimuthal anisotropy, v_3, known as triangular flow. The analysis is for charged particles in Au+Au collisions at sqrtsNN = 200 GeV, based on data from the STAR experiment at the Relativistic Heavy Ion Collider. Two-particle correlations as a function of their pseudorapidity separation are fit with narrow and wide Gaussians. Measureme… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1301.2187v2-abstract-full').style.display = 'inline'; document.getElementById('1301.2187v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1301.2187v2-abstract-full" style="display: none;"> We report measurements of the third harmonic coefficient of the azimuthal anisotropy, v_3, known as triangular flow. The analysis is for charged particles in Au+Au collisions at sqrtsNN = 200 GeV, based on data from the STAR experiment at the Relativistic Heavy Ion Collider. Two-particle correlations as a function of their pseudorapidity separation are fit with narrow and wide Gaussians. Measurements of triangular flow are extracted from the wide Gaussian, from two-particle cumulants with a pseudorapidity gap, and also from event plane analysis methods with a large pseudorapidity gap between the particles and the event plane. These results are reported as a function of transverse momentum and centrality. A large dependence on the pseudorapidity gap is found. Results are compared with other experiments and model calculations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1301.2187v2-abstract-full').style.display = 'none'; document.getElementById('1301.2187v2-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 July, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 January, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 12 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LBNL (2013) </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 88, 014904 (2013) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1206.1928">arXiv:1206.1928</a> <span> [<a href="https://arxiv.org/pdf/1206.1928">pdf</a>, <a href="https://arxiv.org/ps/1206.1928">ps</a>, <a href="https://arxiv.org/format/1206.1928">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2013.01.014">10.1016/j.physletb.2013.01.014 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Single Spin Asymmetry $A_N$ in Polarized Proton-Proton Elastic Scattering at $\sqrt{s}=200$ GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alakhverdyants%2C+A+V">A. V. Alakhverdyants</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alford%2C+J">J. Alford</a>, <a href="/search/nucl-ex?searchtype=author&query=Anson%2C+C+D">C. D. Anson</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E">E. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Banerjee%2C+A">A. Banerjee</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnovska%2C+Z">Z. Barnovska</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a> , et al. (345 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1206.1928v3-abstract-short" style="display: inline;"> We report a high precision measurement of the transverse single spin asymmetry $A_N$ at the center of mass energy $\sqrt{s}=200$ GeV in elastic proton-proton scattering by the STAR experiment at RHIC. The $A_N$ was measured in the four-momentum transfer squared $t$ range $0.003 \leqslant |t| \leqslant 0.035$ $\GeVcSq$, the region of a significant interference between the electromagnetic and hadron… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1206.1928v3-abstract-full').style.display = 'inline'; document.getElementById('1206.1928v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1206.1928v3-abstract-full" style="display: none;"> We report a high precision measurement of the transverse single spin asymmetry $A_N$ at the center of mass energy $\sqrt{s}=200$ GeV in elastic proton-proton scattering by the STAR experiment at RHIC. The $A_N$ was measured in the four-momentum transfer squared $t$ range $0.003 \leqslant |t| \leqslant 0.035$ $\GeVcSq$, the region of a significant interference between the electromagnetic and hadronic scattering amplitudes. The measured values of $A_N$ and its $t$-dependence are consistent with a vanishing hadronic spin-flip amplitude, thus providing strong constraints on the ratio of the single spin-flip to the non-flip amplitudes. Since the hadronic amplitude is dominated by the Pomeron amplitude at this $\sqrt{s}$, we conclude that this measurement addresses the question about the presence of a hadronic spin flip due to the Pomeron exchange in polarized proton-proton elastic scattering. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1206.1928v3-abstract-full').style.display = 'none'; document.getElementById('1206.1928v3-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> 29 January, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 June, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 6 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physics Letters B 719 (2013), pp. 62-69 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1205.6826">arXiv:1205.6826</a> <span> [<a href="https://arxiv.org/pdf/1205.6826">pdf</a>, <a href="https://arxiv.org/ps/1205.6826">ps</a>, <a href="https://arxiv.org/format/1205.6826">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.86.051101">10.1103/PhysRevD.86.051101 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Transverse Single-Spin Asymmetry and Cross-Section for pi0 and eta Mesons at Large Feynman-x in Polarized 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=The+STAR+Collaboration"> The STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alakhverdyants%2C+A+V">A. V. Alakhverdyants</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alford%2C+J">J. Alford</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+B+D">B. D. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Anson%2C+C+D">C. D. Anson</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E">E. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Bannerjee%2C+A">A. Bannerjee</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnovska%2C+Z">Z. Barnovska</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a> , et al. (341 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1205.6826v1-abstract-short" style="display: inline;"> Measurements of the differential cross-section and the transverse single-spin asymmetry, A_N, vs. x_F for pi0 and eta mesons are reported for 0.4 < x_F < 0.75 at an average pseudorapidity of 3.68. A data sample of approximately 6.3 pb^{-1} was analyzed, which was recorded during p+p collisions at sqrt{s} = 200 GeV by the STAR experiment at RHIC. The average transverse beam polarization was 56%. Th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1205.6826v1-abstract-full').style.display = 'inline'; document.getElementById('1205.6826v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1205.6826v1-abstract-full" style="display: none;"> Measurements of the differential cross-section and the transverse single-spin asymmetry, A_N, vs. x_F for pi0 and eta mesons are reported for 0.4 < x_F < 0.75 at an average pseudorapidity of 3.68. A data sample of approximately 6.3 pb^{-1} was analyzed, which was recorded during p+p collisions at sqrt{s} = 200 GeV by the STAR experiment at RHIC. The average transverse beam polarization was 56%. The cross-section for pi0 is consistent with a perturbative QCD prediction, and the eta/pi0 cross-section ratio agrees with previous mid-rapidity measurements. For 0.55 < x_F < 0.75, A_N for eta (0.210 +- 0.056) is 2.2 standard deviations larger than A_N for pi0 (0.081 +- 0.016). <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1205.6826v1-abstract-full').style.display = 'none'; document.getElementById('1205.6826v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 30 May, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages, 5 figures, Submitted to Phys. Rev. D R.C</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 86, 051101(R) (2012) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1205.2735">arXiv:1205.2735</a> <span> [<a href="https://arxiv.org/pdf/1205.2735">pdf</a>, <a href="https://arxiv.org/ps/1205.2735">ps</a>, <a href="https://arxiv.org/format/1205.2735">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"> Longitudinal and transverse spin asymmetries for inclusive jet production at mid-rapidity in polarized 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=The+STAR+Collaboration"> The STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alakhverdyants%2C+A+V">A. V. Alakhverdyants</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alford%2C+J">J. Alford</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+B+D">B. D. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Anson%2C+C+D">C. D. Anson</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E">E. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Banerjee%2C+A">A. Banerjee</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnovska%2C+Z">Z. Barnovska</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a> , et al. (349 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="1205.2735v1-abstract-short" style="display: inline;"> We report STAR measurements of the longitudinal double-spin asymmetry A_LL, the transverse single-spin asymmetry A_N, and the transverse double-spin asymmetries A_Sigma and A_TT for inclusive jet production at mid-rapidity in polarized p+p collisions at a center-of-mass energy of sqrt{s} = 200 GeV. The data represent integrated luminosities of 7.6 /pb with longitudinal polarization and 1.8 /pb wit… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1205.2735v1-abstract-full').style.display = 'inline'; document.getElementById('1205.2735v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1205.2735v1-abstract-full" style="display: none;"> We report STAR measurements of the longitudinal double-spin asymmetry A_LL, the transverse single-spin asymmetry A_N, and the transverse double-spin asymmetries A_Sigma and A_TT for inclusive jet production at mid-rapidity in polarized p+p collisions at a center-of-mass energy of sqrt{s} = 200 GeV. The data represent integrated luminosities of 7.6 /pb with longitudinal polarization and 1.8 /pb with transverse polarization, with 50-55% beam polarization, and were recorded in 2005 and 2006. No evidence is found for the existence of statistically significant jet A_N, A_Sigma, or A_TT at mid-rapidity. Recent model calculations indicate the A_N results may provide new limits on the gluon Sivers distribution in the proton. The asymmetry A_LL significantly improves the knowledge of gluon polarization in the nucleon. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1205.2735v1-abstract-full').style.display = 'none'; document.getElementById('1205.2735v1-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, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">18 pages, 16 figures, 8 tables</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1204.4244">arXiv:1204.4244</a> <span> [<a href="https://arxiv.org/pdf/1204.4244">pdf</a>, <a href="https://arxiv.org/ps/1204.4244">ps</a>, <a href="https://arxiv.org/format/1204.4244">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/PhysRevD.86.072013">10.1103/PhysRevD.86.072013 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurements of $D^{0}$ and $D^{*}$ 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=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alakhverdyants%2C+A+V">A. V. Alakhverdyants</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alford%2C+J">J. Alford</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+B+D">B. D. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Anson%2C+C+D">C. D. Anson</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E">E. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Banerjee%2C+A">A. Banerjee</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnovska%2C+Z">Z. Barnovska</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a> , et al. (348 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1204.4244v3-abstract-short" style="display: inline;"> We report measurements of charmed-hadron ($D^{0}$, $D^{*}$) production cross sections at mid-rapidity in $p$ + $p$ collisions at a center-of-mass energy of 200 GeV by the STAR experiment. Charmed hadrons were reconstructed via the hadronic decays $D^{0}\rightarrow K^{-}蟺^{+}$, $D^{*+}\rightarrow D^{0}蟺^{+}\rightarrow K^{-}蟺^{+}蟺^{+}$ and their charge conjugates, covering the $p_T$ range of 0.6$-$2… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1204.4244v3-abstract-full').style.display = 'inline'; document.getElementById('1204.4244v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1204.4244v3-abstract-full" style="display: none;"> We report measurements of charmed-hadron ($D^{0}$, $D^{*}$) production cross sections at mid-rapidity in $p$ + $p$ collisions at a center-of-mass energy of 200 GeV by the STAR experiment. Charmed hadrons were reconstructed via the hadronic decays $D^{0}\rightarrow K^{-}蟺^{+}$, $D^{*+}\rightarrow D^{0}蟺^{+}\rightarrow K^{-}蟺^{+}蟺^{+}$ and their charge conjugates, covering the $p_T$ range of 0.6$-$2.0 GeV/$c$ and 2.0$-$6.0 GeV/$c$ for $D^{0}$ and $D^{*+}$, respectively. From this analysis, the charm-pair production cross section at mid-rapidity is $d蟽/dy|_{y=0}^{c\bar{c}}$ = 170 $\pm$ 45 (stat.) $^{+38}_{-59}$ (sys.) $渭$b. The extracted charm-pair cross section is compared to perturbative QCD calculations. The transverse momentum differential cross section is found to be consistent with the upper bound of a Fixed-Order Next-to-Leading Logarithm calculation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1204.4244v3-abstract-full').style.display = 'none'; document.getElementById('1204.4244v3-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, 2012; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 April, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2012. </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">15 pages, 16 figures. Revised version submitted to Phys. Rev. D</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1204.1890">arXiv:1204.1890</a> <span> [<a href="https://arxiv.org/pdf/1204.1890">pdf</a>, <a href="https://arxiv.org/ps/1204.1890">ps</a>, <a href="https://arxiv.org/format/1204.1890">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.86.024906">10.1103/PhysRevC.86.024906 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Di-electron spectrum at mid-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=Adamczyk%2C+L">L. Adamczyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alakhverdyants%2C+A+V">A. V. Alakhverdyants</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alford%2C+J">J. Alford</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+B+D">B. D. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Anson%2C+C+D">C. D. Anson</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Aschenauer%2C+E">E. Aschenauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Banerjee%2C+A">A. Banerjee</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnovska%2C+Z">Z. Barnovska</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a> , et al. (348 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1204.1890v2-abstract-short" style="display: inline;"> We report on mid-rapidity mass spectrum of di-electrons and cross sections of pseudoscalar and vector mesons via $e^{+}e^{-}$ decays, from $\sqrt{s} = 200$ GeV $p+p$ collisions, measured by the large acceptance experiment STAR at RHIC. The ratio of the di-electron continuum to the combinatorial background is larger than 10% over the entire mass range. Simulations of di-electrons from light-meson d… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1204.1890v2-abstract-full').style.display = 'inline'; document.getElementById('1204.1890v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1204.1890v2-abstract-full" style="display: none;"> We report on mid-rapidity mass spectrum of di-electrons and cross sections of pseudoscalar and vector mesons via $e^{+}e^{-}$ decays, from $\sqrt{s} = 200$ GeV $p+p$ collisions, measured by the large acceptance experiment STAR at RHIC. The ratio of the di-electron continuum to the combinatorial background is larger than 10% over the entire mass range. Simulations of di-electrons from light-meson decays and heavy-flavor decays (charmonium and open charm correlation) are found to describe the data. The extracted $蠅\rightarrow e^{+}e^{-}$ invariant yields are consistent with previous measurements. The mid-rapidity yields ($dN/dy$) of $蠁$ and $J/蠄$ are extracted through their di-electron decay channels and are consistent with the previous measurements of $蠁\rightarrow K^{+}K^{-}$ and $J/蠄\rightarrow e^{+}e^{-}$. Our results suggest a new upper limit of the branching ratio of the $畏\rightarrow e^{+}e^{-}$ of $1.7\times10^{-5}$ at 90% confidence level. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1204.1890v2-abstract-full').style.display = 'none'; document.getElementById('1204.1890v2-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, 2012; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 April, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2012. </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">15 pages, 17 figures, 4 tables. Published</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 86, 024906 (2012) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1112.2980">arXiv:1112.2980</a> <span> [<a href="https://arxiv.org/pdf/1112.2980">pdf</a>, <a href="https://arxiv.org/format/1112.2980">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.85.092010">10.1103/PhysRevD.85.092010 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the $W \to e 谓$ and $Z/纬^* \to e^+e^-$ Production Cross Sections at Mid-rapidity in Proton-Proton Collisions at $\sqrt{s}$ = 500 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alakhverdyants%2C+A+V">A. V. Alakhverdyants</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alford%2C+J">J. Alford</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+B+D">B. D. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Anson%2C+C+D">C. D. Anson</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Banerjee"> Banerjee</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnovska%2C+Z">Z. Barnovska</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/nucl-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a> , et al. (326 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="1112.2980v1-abstract-short" style="display: inline;"> We report measurements of the charge-separated $W^{+(-)} \to e^{+(-)} + 谓_e(\bar谓_e)$ and $Z/纬^* \to e^+e^-$ production cross sections at mid-rapidity in proton-proton collisions at $\sqrt{s}$ = 500 GeV. These results are based on 13.2 pb$^{-1}$ of data recorded in 2009 by the STAR detector at RHIC. Production cross sections for W bosons that decay via the $e 谓$ channel were measured to be… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1112.2980v1-abstract-full').style.display = 'inline'; document.getElementById('1112.2980v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1112.2980v1-abstract-full" style="display: none;"> We report measurements of the charge-separated $W^{+(-)} \to e^{+(-)} + 谓_e(\bar谓_e)$ and $Z/纬^* \to e^+e^-$ production cross sections at mid-rapidity in proton-proton collisions at $\sqrt{s}$ = 500 GeV. These results are based on 13.2 pb$^{-1}$ of data recorded in 2009 by the STAR detector at RHIC. Production cross sections for W bosons that decay via the $e 谓$ channel were measured to be $蟽(pp \to W^+ X) \cdot BR(W^+ \to e^+ 谓_e)$ = 117.3 \pm 5.9(stat) \pm 6.2(syst) \pm 15.2(lumi) pb, and $蟽(pp \to W^- X) \cdot BR(W^- \to e^- \bar谓_e)$ = 43.3 \pm 4.6(stat) \pm 3.4(syst) \pm 5.6(lumi) pb. For $Z/纬^*$ production, $蟽(pp \to Z/纬^* X) \cdot BR(Z/纬^* \to e^+ e^-)$ = 7.7 \pm 2.1(stat) $^{+0.5}_{-0.9}$(syst) \pm 1.0(lumi) pb for di-lepton invariant masses $m_{e^+e^-}$ between 70 and 110 GeV/$c^2$. First measurements of the W cross section ratio, $蟽(pp \to W^+ X) / 蟽(pp \to W^- X)$, at $\sqrt{s}$ = 500 GeV are also reported. Theoretical predictions, calculated using recent parton distribution functions, are found to agree with the measured cross sections. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1112.2980v1-abstract-full').style.display = 'none'; document.getElementById('1112.2980v1-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 December, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">14 pages, 12 figures, submitted to Physical Review D</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1111.5637">arXiv:1111.5637</a> <span> [<a href="https://arxiv.org/pdf/1111.5637">pdf</a>, <a href="https://arxiv.org/format/1111.5637">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.86.014904">10.1103/PhysRevC.86.014904 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Energy and system-size dependence of two- and four-particle $v_2$ measurements in heavy-ion collisions at RHIC and their implications on flow fluctuations and nonflow </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=The+STAR+Collaboration"> The STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alakhverdyants%2C+A+V">A. V. Alakhverdyants</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alford%2C+J">J. Alford</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+B+D">B. D. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Anson%2C+C+D">C. D. Anson</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnovska%2C+Z">Z. Barnovska</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/nucl-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a>, <a href="/search/nucl-ex?searchtype=author&query=Borowski%2C+W">W. Borowski</a> , et al. (324 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1111.5637v2-abstract-short" style="display: inline;"> We present STAR measurements of azimuthal anisotropy by means of the two- and four-particle cumulants $v_2$ ($v_2\{2\}$ and $v_2\{4\}$) for Au+Au and Cu+Cu collisions at center of mass energies $\sqrt{s_{_{\mathrm{NN}}}} = 62.4$ and 200 GeV. The difference between $v_2\{2\}^2$ and $v_2\{4\}^2$ is related to $v_{2}$ fluctuations ($蟽_{v_2}$) and nonflow $(未_{2})$. We present an upper limit to… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1111.5637v2-abstract-full').style.display = 'inline'; document.getElementById('1111.5637v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1111.5637v2-abstract-full" style="display: none;"> We present STAR measurements of azimuthal anisotropy by means of the two- and four-particle cumulants $v_2$ ($v_2\{2\}$ and $v_2\{4\}$) for Au+Au and Cu+Cu collisions at center of mass energies $\sqrt{s_{_{\mathrm{NN}}}} = 62.4$ and 200 GeV. The difference between $v_2\{2\}^2$ and $v_2\{4\}^2$ is related to $v_{2}$ fluctuations ($蟽_{v_2}$) and nonflow $(未_{2})$. We present an upper limit to $蟽_{v_2}/v_{2}$. Following the assumption that eccentricity fluctuations $蟽_蔚$ dominate $v_2$ fluctuations $\frac{蟽_{v_2}}{v_2} \approx \frac{蟽_蔚}蔚$ we deduce the nonflow implied for several models of eccentricity fluctuations that would be required for consistency with $v_2\{2\}$ and $v_2\{4\}$. We also present results on the ratio of $v_2$ to eccentricity. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1111.5637v2-abstract-full').style.display = 'none'; document.getElementById('1111.5637v2-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, 2011; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 November, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2011. </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">15 pages, 12 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/1110.5800">arXiv:1110.5800</a> <span> [<a href="https://arxiv.org/pdf/1110.5800">pdf</a>, <a href="https://arxiv.org/ps/1110.5800">ps</a>, <a href="https://arxiv.org/format/1110.5800">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.85.014903">10.1103/PhysRevC.85.014903 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> System size and energy dependence of near-side di-hadron correlations </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alakhverdyants%2C+A+V">A. V. Alakhverdyants</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alford%2C+J">J. Alford</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+B+D">B. D. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Anson%2C+C+D">C. D. Anson</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnby%2C+L+S">L. S. Barnby</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/nucl-ex?searchtype=author&query=Bombara%2C+M">M. Bombara</a>, <a href="/search/nucl-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a> , et al. (333 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1110.5800v1-abstract-short" style="display: inline;"> Two-particle azimuthal ($螖蠁$) and pseudorapidity ($螖畏$) correlations using a trigger particle with large transverse momentum ($p_T$) in $d$+Au, Cu+Cu and Au+Au collisions at $\sqrt{s_{NN}}$ =\xspace 62.4 GeV and 200~GeV from the STAR experiment at RHIC are presented. The \ns correlation is separated into a jet-like component, narrow in both $螖蠁$ and $螖畏$, and the ridge, narrow in $螖蠁$ but broad in… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1110.5800v1-abstract-full').style.display = 'inline'; document.getElementById('1110.5800v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1110.5800v1-abstract-full" style="display: none;"> Two-particle azimuthal ($螖蠁$) and pseudorapidity ($螖畏$) correlations using a trigger particle with large transverse momentum ($p_T$) in $d$+Au, Cu+Cu and Au+Au collisions at $\sqrt{s_{NN}}$ =\xspace 62.4 GeV and 200~GeV from the STAR experiment at RHIC are presented. The \ns correlation is separated into a jet-like component, narrow in both $螖蠁$ and $螖畏$, and the ridge, narrow in $螖蠁$ but broad in $螖畏$. Both components are studied as a function of collision centrality, and the jet-like correlation is studied as a function of the trigger and associated $p_T$. The behavior of the jet-like component is remarkably consistent for different collision systems, suggesting it is produced by fragmentation. The width of the jet-like correlation is found to increase with the system size. The ridge, previously observed in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV, is also found in Cu+Cu collisions and in collisions at $\sqrt{s_{NN}}$ =\xspace 62.4 GeV, but is found to be substantially smaller at $\sqrt{s_{NN}}$ =\xspace 62.4 GeV than at $\sqrt{s_{NN}}$ = 200 GeV for the same average number of participants ($ \langle N_{\mathrm{part}}\rangle$). Measurements of the ridge are compared to models. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1110.5800v1-abstract-full').style.display = 'none'; document.getElementById('1110.5800v1-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 October, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">17 pages, 14 figures, submitted to Phys. Rev. C</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1109.5446">arXiv:1109.5446</a> <span> [<a href="https://arxiv.org/pdf/1109.5446">pdf</a>, <a href="https://arxiv.org/ps/1109.5446">ps</a>, <a href="https://arxiv.org/format/1109.5446">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.85.014901">10.1103/PhysRevC.85.014901 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Directed and elliptic flow of charged particles in Cu+Cu collisions at $\sqrt{\bm {s_{NN}}} =$ 22.4 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alakhverdyants%2C+A+V">A. V. Alakhverdyants</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alford%2C+J">J. Alford</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+B+D">B. D. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Anson%2C+C+D">C. D. Anson</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Behera%2C+N+K">N. K. Behera</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/nucl-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a>, <a href="/search/nucl-ex?searchtype=author&query=Borowski%2C+W">W. Borowski</a>, <a href="/search/nucl-ex?searchtype=author&query=Bouchet%2C+J">J. Bouchet</a> , et al. (346 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="1109.5446v2-abstract-short" style="display: inline;"> This paper reports results for directed flow $v_{1}$ and elliptic flow $v_{2}$ of charged particles in Cu+Cu collisions at $\sqrt{s_{NN}}=$ 22.4 GeV at the Relativistic Heavy Ion Collider. The measurements are for the 0-60% most central collisions, using charged particles observed in the STAR detector. Our measurements extend to 22.4 GeV Cu+Cu collisions the prior observation that $v_1$ is indepen… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1109.5446v2-abstract-full').style.display = 'inline'; document.getElementById('1109.5446v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1109.5446v2-abstract-full" style="display: none;"> This paper reports results for directed flow $v_{1}$ and elliptic flow $v_{2}$ of charged particles in Cu+Cu collisions at $\sqrt{s_{NN}}=$ 22.4 GeV at the Relativistic Heavy Ion Collider. The measurements are for the 0-60% most central collisions, using charged particles observed in the STAR detector. Our measurements extend to 22.4 GeV Cu+Cu collisions the prior observation that $v_1$ is independent of the system size at 62.4 and 200 GeV, and also extend the scaling of $v_1$ with $畏/y_{\rm beam}$ to this system. The measured $v_2(p_T)$ in Cu+Cu collisions is similar for $\sqrt{s_{NN}} = 22.4-200$ GeV. We also report a comparison with results from transport model (UrQMD and AMPT) calculations. The model results do not agree quantitatively with the measured $v_1(畏), v_2(p_T)$ and $v_2(畏)$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1109.5446v2-abstract-full').style.display = 'none'; document.getElementById('1109.5446v2-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, 2011; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 September, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">10 pages,9 figures: Introduction part of the paper is expanded, Fig 9 is changed slightly, more discussion on summary</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 85, 014901 (2012) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1109.4380">arXiv:1109.4380</a> <span> [<a href="https://arxiv.org/pdf/1109.4380">pdf</a>, <a href="https://arxiv.org/ps/1109.4380">ps</a>, <a href="https://arxiv.org/format/1109.4380">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.86.064902">10.1103/PhysRevC.86.064902 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Anomalous centrality evolution of two-particle angular correlations from Au-Au collisions at $\sqrt{s_{\rm NN}}$ = 62 and 200 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+G">G. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alakhverdyants%2C+A+V">A. V. Alakhverdyants</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alford%2C+J">J. Alford</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+B+D">B. D. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Anson%2C+C+D">C. D. Anson</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/nucl-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a>, <a href="/search/nucl-ex?searchtype=author&query=Borowski%2C+W">W. Borowski</a>, <a href="/search/nucl-ex?searchtype=author&query=Bouchet%2C+J">J. Bouchet</a> , et al. (330 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1109.4380v2-abstract-short" style="display: inline;"> We present two-dimensional (2D) two-particle angular correlations on relative pseudorapidity $畏$ and azimuth $蠁$ for charged particles from Au-Au collisions at $\sqrt{s_{\rm NN}} = 62$ and 200 GeV with transverse momentum $p_t \geq 0.15$ GeV/$c$, $|畏| \leq 1$ and $2蟺$ azimuth. Observed correlations include a {same-side} (relative azimuth $< 蟺/2$) 2D peak, a closely-related away-side azimuth dipole… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1109.4380v2-abstract-full').style.display = 'inline'; document.getElementById('1109.4380v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1109.4380v2-abstract-full" style="display: none;"> We present two-dimensional (2D) two-particle angular correlations on relative pseudorapidity $畏$ and azimuth $蠁$ for charged particles from Au-Au collisions at $\sqrt{s_{\rm NN}} = 62$ and 200 GeV with transverse momentum $p_t \geq 0.15$ GeV/$c$, $|畏| \leq 1$ and $2蟺$ azimuth. Observed correlations include a {same-side} (relative azimuth $< 蟺/2$) 2D peak, a closely-related away-side azimuth dipole, and an azimuth quadrupole conventionally associated with elliptic flow. The same-side 2D peak and away-side dipole are explained by semihard parton scattering and fragmentation (minijets) in proton-proton and peripheral nucleus-nucleus collisions. Those structures follow N-N binary-collision scaling in Au-Au collisions until mid-centrality where a transition to a qualitatively different centrality trend occurs within a small centrality interval. Above the transition point the number of same-side and away-side correlated pairs increases rapidly {relative to} binary-collision scaling, the $畏$ width of the same-side 2D peak also increases rapidly ($畏$ elongation) and the $蠁$ width actually decreases significantly. Those centrality trends are more remarkable when contrasted with expectations of jet quenching in a dense medium. Observed centrality trends are compared to {\sc hijing} predictions and to the expected trends for semihard parton scattering and fragmentation in a thermalized opaque medium. We are unable to reconcile a semihard parton scattering and fragmentation origin for the observed correlation structure and centrality trends with heavy ion collision scenarios which invoke rapid parton thermalization. On the other hand, if the collision system is effectively opaque to few-GeV partons the observations reported here would be inconsistent with a minijet picture. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1109.4380v2-abstract-full').style.display = 'none'; document.getElementById('1109.4380v2-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 June, 2012; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 20 September, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2011. </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">26 pages, 8 figures, 2 tables</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1107.2955">arXiv:1107.2955</a> <span> [<a href="https://arxiv.org/pdf/1107.2955">pdf</a>, <a href="https://arxiv.org/ps/1107.2955">ps</a>, <a href="https://arxiv.org/format/1107.2955">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.108.072301">10.1103/PhysRevLett.108.072301 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Strangeness Enhancement in Cu+Cu and 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=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+H">H. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alakhverdyants%2C+A+V">A. V. Alakhverdyants</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alford%2C+J">J. Alford</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+B+D">B. D. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Anson%2C+C+D">C. D. Anson</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnby%2C+L+S">L. S. Barnby</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Behera%2C+N+K">N. K. Behera</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Biritz%2C+B">B. Biritz</a>, <a href="/search/nucl-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a> , et al. (348 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1107.2955v2-abstract-short" style="display: inline;"> We report new STAR measurements of mid-rapidity yields for the $螞$, $\bar螞$, $K^{0}_{S}$, $螢^{-}$, $\bar螢^{+}$, $惟^{-}$, $\bar惟^{+}$ particles in Cu+Cu collisions at \sNN{200}, and mid-rapidity yields for the $螞$, $\bar螞$, $K^{0}_{S}$ particles in Au+Au at \sNN{200}. We show that at a given number of participating nucleons, the production of strange hadrons is higher in Cu+Cu collisions than in Au… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1107.2955v2-abstract-full').style.display = 'inline'; document.getElementById('1107.2955v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1107.2955v2-abstract-full" style="display: none;"> We report new STAR measurements of mid-rapidity yields for the $螞$, $\bar螞$, $K^{0}_{S}$, $螢^{-}$, $\bar螢^{+}$, $惟^{-}$, $\bar惟^{+}$ particles in Cu+Cu collisions at \sNN{200}, and mid-rapidity yields for the $螞$, $\bar螞$, $K^{0}_{S}$ particles in Au+Au at \sNN{200}. We show that at a given number of participating nucleons, the production of strange hadrons is higher in Cu+Cu collisions than in Au+Au collisions at the same center-of-mass energy. We find that aspects of the enhancement factors for all particles can be described by a parameterization based on the fraction of participants that undergo multiple collisions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1107.2955v2-abstract-full').style.display = 'none'; document.getElementById('1107.2955v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 3 January, 2012; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 July, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2011. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1102.2669">arXiv:1102.2669</a> <span> [<a href="https://arxiv.org/pdf/1102.2669">pdf</a>, <a href="https://arxiv.org/ps/1102.2669">ps</a>, <a href="https://arxiv.org/format/1102.2669">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.83.061901">10.1103/PhysRevC.83.061901 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Studies of di-jet survival and surface emission bias in Au+Au collisions via angular correlations with respect to back-to-back leading hadrons </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+H">H. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alakhverdyants%2C+A+V">A. V. Alakhverdyants</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alford%2C+J">J. Alford</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+B+D">B. D. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Anson%2C+C+D">C. D. Anson</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Behera%2C+N+K">N. K. Behera</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Biritz%2C+B">B. Biritz</a>, <a href="/search/nucl-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/nucl-ex?searchtype=author&query=Bordyuzhin%2C+I+G">I. G. Bordyuzhin</a>, <a href="/search/nucl-ex?searchtype=author&query=Borowski%2C+W">W. Borowski</a> , et al. (353 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="1102.2669v1-abstract-short" style="display: inline;"> We report first results from an analysis based on a new multi-hadron correlation technique, exploring jet-medium interactions and di-jet surface emission bias at RHIC. Pairs of back-to-back high transverse momentum hadrons are used for triggers to study associated hadron distributions. In contrast with two- and three-particle correlations with a single trigger with similar kinematic selections, th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1102.2669v1-abstract-full').style.display = 'inline'; document.getElementById('1102.2669v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1102.2669v1-abstract-full" style="display: none;"> We report first results from an analysis based on a new multi-hadron correlation technique, exploring jet-medium interactions and di-jet surface emission bias at RHIC. Pairs of back-to-back high transverse momentum hadrons are used for triggers to study associated hadron distributions. In contrast with two- and three-particle correlations with a single trigger with similar kinematic selections, the associated hadron distribution of both trigger sides reveals no modification in either relative pseudo-rapidity or relative azimuthal angle from d+Au to central Au+Au collisions. We determine associated hadron yields and spectra as well as production rates for such correlated back-to-back triggers to gain additional insights on medium properties. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1102.2669v1-abstract-full').style.display = 'none'; document.getElementById('1102.2669v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 13 February, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2011. </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">By the STAR Collaboration. 6 pages, 2 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.C83:061901,2011 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1010.0690">arXiv:1010.0690</a> <span> [<a href="https://arxiv.org/pdf/1010.0690">pdf</a>, <a href="https://arxiv.org/format/1010.0690">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1674-1137/abdf3f">10.1088/1674-1137/abdf3f <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurements of Dihadron Correlations Relative to the Event Plane in Au+Au Collisions at $\sqrt{s_{_{\rm NN}}}=200$ GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Agakishiev%2C+H">H. Agakishiev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alakhverdyants%2C+A+V">A. V. Alakhverdyants</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alford%2C+J">J. Alford</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+B+D">B. D. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Anson%2C+C+D">C. D. Anson</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Behera%2C+N+K">N. K. Behera</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Biritz%2C+B">B. Biritz</a>, <a href="/search/nucl-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/nucl-ex?searchtype=author&query=Borowski%2C+W">W. Borowski</a>, <a href="/search/nucl-ex?searchtype=author&query=Bouchet%2C+J">J. Bouchet</a> , et al. (345 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1010.0690v4-abstract-short" style="display: inline;"> Dihadron azimuthal correlations containing a high transverse momentum ($p_T$) trigger particle are sensitive to the properties of the nuclear medium created at RHIC through the strong interactions occurring between the traversing parton and the medium, i.e. jet-quenching. Previous measurements revealed a strong modification to dihadron azimuthal correlations in Au+Au collisions with respect to p+p… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1010.0690v4-abstract-full').style.display = 'inline'; document.getElementById('1010.0690v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1010.0690v4-abstract-full" style="display: none;"> Dihadron azimuthal correlations containing a high transverse momentum ($p_T$) trigger particle are sensitive to the properties of the nuclear medium created at RHIC through the strong interactions occurring between the traversing parton and the medium, i.e. jet-quenching. Previous measurements revealed a strong modification to dihadron azimuthal correlations in Au+Au collisions with respect to p+p and d+Au collisions. The modification increases with the collision centrality, suggesting a path-length or energy density dependence to the jet-quenching effect. This paper reports STAR measurements of dihadron azimuthal correlations in mid-central (20-60%) Au+Au collisions at $\sqrt{s_{_{\rm NN}}}=200$ GeV as a function of the trigger particle's azimuthal angle relative to the event plane, $蠁_s=|蠁_t-蠄_{\rm EP}|$. The azimuthal correlation is studied as a function of both the trigger and associated particle $p_T$. The subtractions of the combinatorial background and anisotropic flow, assuming Zero Yield At Minimum (ZYAM), are described. The correlation results are first discussed with subtraction of the even harmonic (elliptic and quadrangular) flow backgrounds. The away-side correlation is strongly modified, and the modification varies with $蠁_s$, with a double-peak structure for out-of-plane trigger particles. The near-side ridge (long range pseudo-rapidity $螖畏$ correlation) appears to drop with increasing $蠁_s$ while the jet-like component remains approximately constant. The correlation functions are further studied with subtraction of odd harmonic triangular flow background arising from fluctuations. It is found that the triangular flow, while responsible for the majority of the amplitudes, is not sufficient to explain the $蠁_s$-dependence of the ridge or the away-side double-peak structure. ... <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1010.0690v4-abstract-full').style.display = 'none'; document.getElementById('1010.0690v4-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 March, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 4 October, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2010. </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">54 pages, 40 figures, 6 tables. As published</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Chin. Phys. C 45 (2021) 044002 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1007.2613">arXiv:1007.2613</a> <span> [<a href="https://arxiv.org/pdf/1007.2613">pdf</a>, <a href="https://arxiv.org/format/1007.2613">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"> An Experimental Exploration of the QCD Phase Diagram: The Search for the Critical Point and the Onset of De-confinement </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alakhverdyants%2C+A+V">A. V. Alakhverdyants</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+B+D">B. D. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnby%2C+L+S">L. S. Barnby</a>, <a href="/search/nucl-ex?searchtype=author&query=Baumgart%2C+S">S. Baumgart</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Biritz%2C+B">B. Biritz</a>, <a href="/search/nucl-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonner%2C+B+E">B. E. Bonner</a>, <a href="/search/nucl-ex?searchtype=author&query=Bouchet%2C+J">J. Bouchet</a>, <a href="/search/nucl-ex?searchtype=author&query=Braidot%2C+E">E. Braidot</a> , et al. (359 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1007.2613v1-abstract-short" style="display: inline;"> The QCD phase diagram lies at the heart of what the RHIC Physics Program is all about. While RHIC has been operating very successfully at or close to its maximum energy for almost a decade, it has become clear that this collider can also be operated at lower energies down to 5 GeV without extensive upgrades. An exploration of the full region of beam energies available at the RHIC facility is imper… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1007.2613v1-abstract-full').style.display = 'inline'; document.getElementById('1007.2613v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1007.2613v1-abstract-full" style="display: none;"> The QCD phase diagram lies at the heart of what the RHIC Physics Program is all about. While RHIC has been operating very successfully at or close to its maximum energy for almost a decade, it has become clear that this collider can also be operated at lower energies down to 5 GeV without extensive upgrades. An exploration of the full region of beam energies available at the RHIC facility is imperative. The STAR detector, due to its large uniform acceptance and excellent particle identification capabilities, is uniquely positioned to carry out this program in depth and detail. The first exploratory beam energy scan (BES) run at RHIC took place in 2010 (Run 10), since several STAR upgrades, most importantly a full barrel Time of Flight detector, are now completed which add new capabilities important for the interesting physics at BES energies. In this document we discuss current proposed measurements, with estimations of the accuracy of the measurements given an assumed event count at each beam energy. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1007.2613v1-abstract-full').style.display = 'none'; document.getElementById('1007.2613v1-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 July, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2010. </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">59 pages, 78 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/1006.1961">arXiv:1006.1961</a> <span> [<a href="https://arxiv.org/pdf/1006.1961">pdf</a>, <a href="https://arxiv.org/ps/1006.1961">ps</a>, <a href="https://arxiv.org/format/1006.1961">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.84.034909">10.1103/PhysRevC.84.034909 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> K*0 production in Cu+Cu and Au+Au collisions at \sqrt{s_NN} = 62.4 GeV and 200 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alakhverdyants%2C+A+V">A. V. Alakhverdyants</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alford%2C+J">J. Alford</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+B+D">B. D. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Anson%2C+D">Daniel Anson</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnby%2C+L+S">L. S. Barnby</a>, <a href="/search/nucl-ex?searchtype=author&query=Baumgart%2C+S">S. Baumgart</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Biritz%2C+B">B. Biritz</a>, <a href="/search/nucl-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonner%2C+B+E">B. E. Bonner</a>, <a href="/search/nucl-ex?searchtype=author&query=Borowski%2C+W">W. Borowski</a> , et al. (362 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="1006.1961v1-abstract-short" style="display: inline;"> We report on K*0 production at mid-rapidity in Au+Au and Cu+Cu collisions at \sqrt{s_{NN}} = 62.4 and 200 GeV collected by the Solenoid Tracker at RHIC (STAR) detector. The K*0 is reconstructed via the hadronic decays K*0 \to K+ pi- and \bar{K*0} \to K-pi+. Transverse momentum, pT, spectra are measured over a range of pT extending from 0.2 GeV/c to 5 GeV/c. The center of mass energy and system siz… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1006.1961v1-abstract-full').style.display = 'inline'; document.getElementById('1006.1961v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1006.1961v1-abstract-full" style="display: none;"> We report on K*0 production at mid-rapidity in Au+Au and Cu+Cu collisions at \sqrt{s_{NN}} = 62.4 and 200 GeV collected by the Solenoid Tracker at RHIC (STAR) detector. The K*0 is reconstructed via the hadronic decays K*0 \to K+ pi- and \bar{K*0} \to K-pi+. Transverse momentum, pT, spectra are measured over a range of pT extending from 0.2 GeV/c to 5 GeV/c. The center of mass energy and system size dependence of the rapidity density, dN/dy, and the average transverse momentum, <pT>, are presented. The measured N(K*0)/N(K) and N(蠁)/N(K*0) ratios favor the dominance of re-scattering of decay daughters of K*0 over the hadronic regeneration for the K*0 production. In the intermediate pT region (2.0 < pT < 4.0 GeV/c), the elliptic flow parameter, v2, and the nuclear modification factor, RCP, agree with the expectations from the quark coalescence model of particle production. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1006.1961v1-abstract-full').style.display = 'none'; document.getElementById('1006.1961v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 June, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">14 pages and 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/1004.4959">arXiv:1004.4959</a> <span> [<a href="https://arxiv.org/pdf/1004.4959">pdf</a>, <a href="https://arxiv.org/ps/1004.4959">ps</a>, <a href="https://arxiv.org/format/1004.4959">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 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.105.022302">10.1103/PhysRevLett.105.022302 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Higher Moments of Net-proton Multiplicity Distributions at RHIC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alakhverdyants%2C+A+V">A. V. Alakhverdyants</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alford%2C+J">J. Alford</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+B+D">B. D. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnby%2C+L+S">L. S. Barnby</a>, <a href="/search/nucl-ex?searchtype=author&query=Baumgart%2C+S">S. Baumgart</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Biritz%2C+B">B. Biritz</a>, <a href="/search/nucl-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonner%2C+3+B+E">3 B. E. Bonner</a>, <a href="/search/nucl-ex?searchtype=author&query=Bouchet%2C+J">J. Bouchet</a>, <a href="/search/nucl-ex?searchtype=author&query=Braidot%2C+E">E. Braidot</a> , et al. (359 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1004.4959v2-abstract-short" style="display: inline;"> We report the first measurements of the kurtosis (魏), skewness (S) and variance (蟽^2) of net-proton multiplicity (N_p - N_pbar) distributions at midrapidity for Au+Au collisions at \sqrt(s_NN) = 19.6, 62.4, and 200 GeV corresponding to baryon chemical potentials (渭_B) between 200 - 20 MeV. Our measurements of the products 魏蟽^2 and S 蟽, which can be related to theoretical calculations sensitive t… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1004.4959v2-abstract-full').style.display = 'inline'; document.getElementById('1004.4959v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1004.4959v2-abstract-full" style="display: none;"> We report the first measurements of the kurtosis (魏), skewness (S) and variance (蟽^2) of net-proton multiplicity (N_p - N_pbar) distributions at midrapidity for Au+Au collisions at \sqrt(s_NN) = 19.6, 62.4, and 200 GeV corresponding to baryon chemical potentials (渭_B) between 200 - 20 MeV. Our measurements of the products 魏蟽^2 and S 蟽, which can be related to theoretical calculations sensitive to baryon number susceptibilities and long range correlations, are constant as functions of collision centrality. We compare these products with results from lattice QCD and various models without a critical point and study the \sqrt(s_NN) dependence of 魏蟽^2. From the measurements at the three beam energies, we find no evidence for a critical point in the QCD phase diagram for 渭_B below 200 MeV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1004.4959v2-abstract-full').style.display = 'none'; document.getElementById('1004.4959v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 June, 2010; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 April, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2010. </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 and 4 figures. Version accepted for publication in Physical Review Letters</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.Lett.105:022302,2010 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1004.2377">arXiv:1004.2377</a> <span> [<a href="https://arxiv.org/pdf/1004.2377">pdf</a>, <a href="https://arxiv.org/ps/1004.2377">ps</a>, <a href="https://arxiv.org/format/1004.2377">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.82.024912">10.1103/PhysRevC.82.024912 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Azimuthal di-hadron correlations in d+Au and Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV from STAR </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alakhverdyants%2C+A+V">A. V. Alakhverdyants</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alford%2C+J">J. Alford</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+B+D">B. D. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Anson%2C+D">Daniel Anson</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnby%2C+L+S">L. S. Barnby</a>, <a href="/search/nucl-ex?searchtype=author&query=Baumgart%2C+S">S. Baumgart</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Biritz%2C+B">B. Biritz</a>, <a href="/search/nucl-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonner%2C+B+E">B. E. Bonner</a> , et al. (363 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="1004.2377v2-abstract-short" style="display: inline;"> Yields, correlation shapes, and mean transverse momenta \pt{} of charged particles associated with intermediate to high-\pt{} trigger particles ($2.5 < \pt < 10$ \GeVc) in d+Au and Au+Au collisions at $\snn=200$ GeV are presented. For associated particles at higher $\pt \gtrsim 2.5$ \GeVc, narrow correlation peaks are seen in d+Au and Au+Au, indicating that the main production mechanism is jet fra… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1004.2377v2-abstract-full').style.display = 'inline'; document.getElementById('1004.2377v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1004.2377v2-abstract-full" style="display: none;"> Yields, correlation shapes, and mean transverse momenta \pt{} of charged particles associated with intermediate to high-\pt{} trigger particles ($2.5 < \pt < 10$ \GeVc) in d+Au and Au+Au collisions at $\snn=200$ GeV are presented. For associated particles at higher $\pt \gtrsim 2.5$ \GeVc, narrow correlation peaks are seen in d+Au and Au+Au, indicating that the main production mechanism is jet fragmentation. At lower associated particle $\pt < 2$ \GeVc, a large enhancement of the near- ($\dphi \sim 0$) and away-side ($\dphi \sim 蟺$) associated yields is found, together with a strong broadening of the away-side azimuthal distributions in Au+Au collisions compared to d+Au measurements, suggesting that other particle production mechanisms play a role. This is further supported by the observed significant softening of the away-side associated particle yield distribution at $\dphi \sim 蟺$ in central Au+Au collisions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1004.2377v2-abstract-full').style.display = 'none'; document.getElementById('1004.2377v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 August, 2010; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 April, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">16 pages, 11 figures, updated after journal review</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.C82:024912,2010 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1004.0925">arXiv:1004.0925</a> <span> [<a href="https://arxiv.org/pdf/1004.0925">pdf</a>, <a href="https://arxiv.org/ps/1004.0925">ps</a>, <a href="https://arxiv.org/format/1004.0925">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.83.064905">10.1103/PhysRevC.83.064905 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Pion femtoscopy 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=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alakhverdyants%2C+A+V">A. V. Alakhverdyants</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+I">I. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alford%2C+J">J. Alford</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+B+D">B. D. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnby%2C+L+S">L. S. Barnby</a>, <a href="/search/nucl-ex?searchtype=author&query=Baumgart%2C+S">S. Baumgart</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Biritz%2C+B">B. Biritz</a>, <a href="/search/nucl-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonner%2C+3+B+E">3 B. E. Bonner</a>, <a href="/search/nucl-ex?searchtype=author&query=Bouchet%2C+J">J. Bouchet</a>, <a href="/search/nucl-ex?searchtype=author&query=Braidot%2C+E">E. Braidot</a> , et al. (359 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1004.0925v3-abstract-short" style="display: inline;"> The STAR Collaboration at RHIC has measured two-pion correlation functions from p+p collisions at sqrt(s)=200 GeV. Spatial scales are extracted via a femtoscopic analysis of the correlations, though this analysis is complicated by the presence of strong non-femtoscopic effects. Our results are put into the context of the world dataset of femtoscopy in hadron-hadron collisions. We present the first… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1004.0925v3-abstract-full').style.display = 'inline'; document.getElementById('1004.0925v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1004.0925v3-abstract-full" style="display: none;"> The STAR Collaboration at RHIC has measured two-pion correlation functions from p+p collisions at sqrt(s)=200 GeV. Spatial scales are extracted via a femtoscopic analysis of the correlations, though this analysis is complicated by the presence of strong non-femtoscopic effects. Our results are put into the context of the world dataset of femtoscopy in hadron-hadron collisions. We present the first direct comparison of femtoscopy in p+p and heavy ion collisions, under identical analysis and detector conditions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1004.0925v3-abstract-full').style.display = 'none'; document.getElementById('1004.0925v3-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, 2011; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 6 April, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">16 pages, 15 figures, as 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.C83:064905,2011 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1001.2745">arXiv:1001.2745</a> <span> [<a href="https://arxiv.org/pdf/1001.2745">pdf</a>, <a href="https://arxiv.org/ps/1001.2745">ps</a>, <a href="https://arxiv.org/format/1001.2745">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/PhysRevD.82.012004">10.1103/PhysRevD.82.012004 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Upsilon cross section in p+p collisions at sqrt(s) = 200 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=STAR+Collaboration"> STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Abelev%2C+B+I">B. I. Abelev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alakhverdyants%2C+A+V">A. V. Alakhverdyants</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+B+D">B. D. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnby%2C+L+S">L. S. Barnby</a>, <a href="/search/nucl-ex?searchtype=author&query=Baumgart%2C+S">S. Baumgart</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Biritz%2C+B">B. Biritz</a>, <a href="/search/nucl-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonner%2C+B+E">B. E. Bonner</a>, <a href="/search/nucl-ex?searchtype=author&query=Bouchet%2C+J">J. Bouchet</a>, <a href="/search/nucl-ex?searchtype=author&query=Braidot%2C+E">E. Braidot</a> , et al. (360 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="1001.2745v2-abstract-short" style="display: inline;"> We report on a measurement of the Upsilon(1S+2S+3S) -> e+e- cross section at midrapidity in p+p collisions at sqrt(s)=200 GeV. We find the cross section to be 114 +/- 38 (stat.) +23,-24 (syst.) pb. Perturbative QCD calculations at next-to-leading order in the Color Evaporation Model are in agreement with our measurement, while calculations in the Color Singlet Model underestimate it by 2 sigma.… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1001.2745v2-abstract-full').style.display = 'inline'; document.getElementById('1001.2745v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1001.2745v2-abstract-full" style="display: none;"> We report on a measurement of the Upsilon(1S+2S+3S) -> e+e- cross section at midrapidity in p+p collisions at sqrt(s)=200 GeV. We find the cross section to be 114 +/- 38 (stat.) +23,-24 (syst.) pb. Perturbative QCD calculations at next-to-leading order in the Color Evaporation Model are in agreement with our measurement, while calculations in the Color Singlet Model underestimate it by 2 sigma. Our result is consistent with the trend seen in world data as a function of the center-of-mass energy of the collision and extends the availability of Upsilon data to RHIC energies. The dielectron continuum in the invariant mass range near the Upsilon is also studied to obtain a combined cross section of Drell-Yan plus (b b-bar) -> e+e-. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1001.2745v2-abstract-full').style.display = 'none'; document.getElementById('1001.2745v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 May, 2010; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 January, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">17 pages, 14 figures, STAR Collaboration</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.D82:012004,2010 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0903.1296">arXiv:0903.1296</a> <span> [<a href="https://arxiv.org/pdf/0903.1296">pdf</a>, <a href="https://arxiv.org/ps/0903.1296">ps</a>, <a href="https://arxiv.org/format/0903.1296">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.80.024905">10.1103/PhysRevC.80.024905 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Pion Interferometry in Au+Au and Cu+Cu Collisions at $\sqrt{s_{\rm{NN}}}$ = 62.4 and 200 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=The+STAR+Collaboration"> The STAR Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Abelev%2C+B+I">B. I. Abelev</a>, <a href="/search/nucl-ex?searchtype=author&query=Aggarwal%2C+M+M">M. M. Aggarwal</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahammed%2C+Z">Z. Ahammed</a>, <a href="/search/nucl-ex?searchtype=author&query=Alakhverdyants%2C+A+V">A. V. Alakhverdyants</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+B+D">B. D. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Arkhipkin%2C+D">D. Arkhipkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Averichev%2C+G+S">G. S. Averichev</a>, <a href="/search/nucl-ex?searchtype=author&query=Balewski%2C+J">J. Balewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Barannikova%2C+O">O. Barannikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Barnby%2C+L+S">L. S. Barnby</a>, <a href="/search/nucl-ex?searchtype=author&query=Baumgart%2C+S">S. Baumgart</a>, <a href="/search/nucl-ex?searchtype=author&query=Beavis%2C+D+R">D. R. Beavis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellwied%2C+R">R. Bellwied</a>, <a href="/search/nucl-ex?searchtype=author&query=Benedosso%2C+F">F. Benedosso</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Betts%2C+R+R">R. R. Betts</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhasin%2C+A">A. Bhasin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhati%2C+A+K">A. K. Bhati</a>, <a href="/search/nucl-ex?searchtype=author&query=Bichsel%2C+H">H. Bichsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcik%2C+J">J. Bielcik</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielcikova%2C+J">J. Bielcikova</a>, <a href="/search/nucl-ex?searchtype=author&query=Biritz%2C+B">B. Biritz</a>, <a href="/search/nucl-ex?searchtype=author&query=Bland%2C+L+C">L. C. Bland</a>, <a href="/search/nucl-ex?searchtype=author&query=Bnzarov%2C+I">I. Bnzarov</a> , et al. (44 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="0903.1296v2-abstract-short" style="display: inline;"> We present a systematic analysis of two-pion interferometry in Au+Au collisions at $\sqrt{s_{\rm{NN}}}$ = 62.4 GeV and Cu+Cu collisions at $\sqrt{s_{\rm{NN}}}$ = 62.4 and 200 GeV using the STAR detector at RHIC. The multiplicity and transverse momentum dependences of the extracted correlation lengths (radii) are studied. The scaling with charged particle multiplicity of the apparent system volum… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0903.1296v2-abstract-full').style.display = 'inline'; document.getElementById('0903.1296v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0903.1296v2-abstract-full" style="display: none;"> We present a systematic analysis of two-pion interferometry in Au+Au collisions at $\sqrt{s_{\rm{NN}}}$ = 62.4 GeV and Cu+Cu collisions at $\sqrt{s_{\rm{NN}}}$ = 62.4 and 200 GeV using the STAR detector at RHIC. The multiplicity and transverse momentum dependences of the extracted correlation lengths (radii) are studied. The scaling with charged particle multiplicity of the apparent system volume at final interaction is studied for the RHIC energy domain. The multiplicity scaling of the measured correlation radii is found to be independent of colliding system and collision energy. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0903.1296v2-abstract-full').style.display = 'none'; document.getElementById('0903.1296v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 August, 2009; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 6 March, 2009; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2009. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 12 figures. for Physical Review C; http://prc.aps.org/abstract/PRC/v80/i2/e024905</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.C80:024905,2009 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/nucl-ex/0508004">arXiv:nucl-ex/0508004</a> <span> [<a href="https://arxiv.org/pdf/nucl-ex/0508004">pdf</a>, <a href="https://arxiv.org/ps/nucl-ex/0508004">ps</a>, <a href="https://arxiv.org/format/nucl-ex/0508004">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.73.015501">10.1103/PhysRevC.73.015501 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> New Measurements and Quantitative Analysis of Electron Backscattering in the Energy Range of Neutron Beta-Decay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Martin%2C+J+W">J. W. Martin</a>, <a href="/search/nucl-ex?searchtype=author&query=Yuan%2C+J">J. Yuan</a>, <a href="/search/nucl-ex?searchtype=author&query=Betancourt%2C+M+J">M. J. Betancourt</a>, <a href="/search/nucl-ex?searchtype=author&query=Filippone%2C+B+W">B. W. Filippone</a>, <a href="/search/nucl-ex?searchtype=author&query=Hoedl%2C+S+A">S. A. Hoedl</a>, <a href="/search/nucl-ex?searchtype=author&query=Ito%2C+T+M">T. M. Ito</a>, <a href="/search/nucl-ex?searchtype=author&query=Plaster%2C+B">B. Plaster</a>, <a href="/search/nucl-ex?searchtype=author&query=Young%2C+A+R">A. R. Young</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="nucl-ex/0508004v2-abstract-short" style="display: inline;"> We report on the first detailed measurements of electron backscattering from plastic scintillator targets, extending our previous work on beryllium and silicon targets. The scintillator experiment posed several additional experimental challenges associated with charging of the scintillator target, and those challenges are addressed in detail. In addition, we quantitatively compare the energy and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0508004v2-abstract-full').style.display = 'inline'; document.getElementById('nucl-ex/0508004v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="nucl-ex/0508004v2-abstract-full" style="display: none;"> We report on the first detailed measurements of electron backscattering from plastic scintillator targets, extending our previous work on beryllium and silicon targets. The scintillator experiment posed several additional experimental challenges associated with charging of the scintillator target, and those challenges are addressed in detail. In addition, we quantitatively compare the energy and angular distributions of this data, and our previous data, with electron transport simulations based on the Geant4 and Penelope Monte Carlo simulation codes. The Penelope simulation is found globally to give a superior description of the data. Such information is crucial for a broad array of weak-interaction physics experiments, where electron backscattering can give rise to the dominant detector-related systematic uncertainty. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0508004v2-abstract-full').style.display = 'none'; document.getElementById('nucl-ex/0508004v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 November, 2005; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 August, 2005; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2005. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages, 3 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.C73:015501,2006 </p> </li> </ol> <div class="is-hidden-tablet">  <span class="help" style="display: inline-block;"><a href="https://github.com/arXiv/arxiv-search/releases">Search v0.5.6 released 2020-02-24</a>  </span> </div> </div> </main> <footer> <div class="columns is-desktop" role="navigation" aria-label="Secondary">  <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/about">About</a></li> <li><a href="https://info.arxiv.org/help">Help</a></li> </ul> </div> <div class="column"> <ul class="nav-spaced"> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>contact arXiv</title><desc>Click here to contact arXiv</desc><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 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