Anisotropy flows in Pb-Pb collisions at LHC energies from parton scatterings with heavy quark trigger  

作　　者：Hai Wang Jin-Hui Chen 

机构地区：[1]Key Laboratory of Nuclear Physics and Ion-beam Application(MOE),Institute of Modern Physics,Fudan University,Shanghai 200433,China

出　　处：《Nuclear Science and Techniques》2022年第2期14-20,共7页核技术（英文）

基　　金：supported in part by the Strategic Priority Research Program of the Chinese Academy of Sciences (No. XDB34030200);the Guangdong Major Project of Basic and Applied Basic Research(No. 2020B0301030008);the National Natural Science Foundation of China (Nos. 12025501, 11890710, 11890714, and12147114)

摘　　要：By implementing an additional heavy quark-antiquark pair production trigger in a multiphase transport(AMPT)model,we study the effect on anisotropy flows of identified particles with a focus on charged particles and quarkonium(J/ΨandΥ).A systematic increase in the collision rate for active partons in the AMPT model with such an implementation has been observed.It leads to a slight increase of identified particles anisotropy flows as a function of transverse momentum(pT)and rapidity,and gives a better description of the experimental data of elliptic flow toward larger pT.Our approach provides an efficient way to study the heavy quark dynamics in the AMPT model at LHC energies.

关 键 词：Heavy-ion collision Quark-gluon plasma QUARKONIUM Collective flow 

分 类 号：O572.33[理学—粒子物理与原子核物理]