期刊论文

Luo, Xiaofeng

英文

中国物理C

1674-1137

2019

43

5

054109

10.1088/1674-1137/43/5/054109

MoST of China 973-ProjectMinistry of Science and Technology, ChinaNational Basic Research Program of China [2015CB856901]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [11475085, 11535005, 11690030, 11575069, 11221504, 11890711, 11861131009]; Fundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central Universities [020414380074, CCNU19QN054]

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We discuss the sign and energy dependence of second to tenth order susceptibilities of the baryon number, charge number, and strangeness for the analysis of critical conditions in heavy ion collisions in the LHC and RHIC by applying a modified Nambu-Jona-Lasinio model. This model is fitted to the quark condensate of the lattice QCD result at finite temperature and zero baryon chemical potential. The presence of a critical point made these susceptibilities deviate considerably from a Hadron-Resonance-Gas model that shows no criticality. The sign, magnitude, and energy dependence of these higher...