| 1 | Correlations of baryon and charge stopping in heavy ion collisions显示文摘Wendi Lv 1,Yang Li 1,Ziyang Li 1,Rongrong Ma 2,Zebo Tang 1,,,,Prithwish Tribedy 2,Chun Yuen Tsang 3,Zhangbu Xu 2,Wangmei Zha 11.State Key Laboratory of Particle Detection and Electronics,University of Science and Technology of China,Hefei 230026,China;2.Physics Department,Brookhaven National Laboratory,Upton,NY 11973,USA;3.Department of Physics,Kent State University,Kent,OH 44242,USA Abstract HTML Reference Related PDF Abstract:Baryon numbers are theorized to be carried by valence quarks in the standard QCD picture of the baryon structure.Another theory proposed an alternative baryon number carrier,a non-perturbative Y-shaped configuration of the gluon field,called the baryon junction in the 1970s.However,neither of these theories has been verified experimentally.Recently,searching for the baryon junction by investigating the correlation of net-charge and net-baryon yields at midrapidity in heavy-ion collisions has been suggested.This paper presents studies of such correlations in collisions of various heavy ions from oxygen to uranium with the UrQMD Monte Carlo model.The UrQMD model implements valence quark transport as the primary means of charge and baryon stopping at midrapidity.Detailed studies are also conducted for isobaric 9640Zr+9640Zr and 9644Ru+9644Ru collisions.We found a universal trend of charge stopping with respect to baryon stopping and discovered that the charge stopping is always greater than the baryon stopping.This study provides a model baseline in valence quark transport for what is expected in net-charge and net-baryon yields at the midrapidity of relativistic heavy-ion collisions. | 吕文 李洋 李子阳 马荣荣 唐泽波 Prithwish Tribedy Chun Yuen Tsang Zhangbu Xu Wangmei Zha | 2024 | Chinese Physics C2024，48，4： | 0 |
| 2 | Investigation of experimental observables in search of the chiral magnetic effect in heavy-ion collisions in the STAR experiment显示文摘The chiral magnetic effect(CME)is a novel transport phenomenon,arising from the interplay between quantum anomalies and strong magnetic fields in chiral systems.In high-energy nuclear collisions,the CME may survive the expansion of the quark-gluon plasma fireball and be detected in experiments.Over the past two decades,experimental searches for the CME have attracted extensive interest at the Relativistic Heavy Ion Collider(RHIC)and the Large Hadron Collider(LHC).The main goal of this study is to investigate three pertinent experimental approaches:the$\gamma$correlator,the R correlator,and the signed balance functions.We exploit simple Monte Carlo simulations and a realistic event generator(EBE-AVFD)to verify the equivalence of the core components among these methods and to ascertain their sensitivities to the CME signal and the background contributions for the isobar collisions at the RHIC. | Subikash Choudhury Xin Dong Jim Drachenberg James Dunlop ShinIchi Esumi 冯毅程 Evan Finch 胡昱 Jiangyong Jia Jerome Lauret Wei Li 廖劲峰 林裕富 Mike Lisa Takafumi Niida Robert Lanny Ray Masha Sergeeva 申迪宇 施舒哲 Paul Sorensen 唐爱洪 Prithwish Tribedy Gene Van Buren Sergei Voloshin 王福强 王钢 徐浩洁 徐之湾 Nanxi Yao 赵杰 | 2022 | Chinese Physics C2022，46，1： | 0 |
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