期刊论文

英文

中国物理C

1674-1137

2021

45

7

205-213

10.1088/1674-1137/abf645

National Key Research and Development Program of China [2020YFE0202002]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [11935007, 11221504, 11861131009, 12075098, 11890714]; Office of Energy Research, Office of High Energy and Nuclear Physics, Division of Nuclear Physics, of the U.S. Department of Energy (DOE)United States Department of Energy (DOE) [DE-AC02-05CH11231]; U.S. National Science Foundation within JETSCAPE CollaborationNational Science Foundation (NSF) [ACI-1550228]; U.S. National Science Foundation within the X-SCAPE Collaboration by the UCB-CCNU Collaboration GrantNational Science Foundation (NSF) [OAC2004571]; U.S. Department of Energy Office of ScienceUnited States Department of Energy (DOE) [DE-AC0205CH11231]

本校为第一机构

The large values and constituent-quark-number scaling of the elliptic flow of low- D mesons imply that charm quarks, initially produced through hard processes, might be partially thermalized through strong interactions with quark-gluon plasma (QGP) in high-energy heavy-ion collisions. To quantify the degree of thermalization of low- charm quarks, we compare the meson spectra and elliptic flow from a hydrodynamic model to experimental data as well as transport model simulations. We use an effective charm chemical potential at the freeze-out temp...