The 14th Workshop on QCD Phase Transition and Relativistic Heavy-Ion Physics (QPT 2021)

Non-Gaussian shaped density profile in light nuclei production in heavy ion collision

Not scheduled

15m

Conference Hall (Shangshan Hotel, Building 9)

Speaker

Shanjin Wu (Peking University)

Description

Light nuclei production is an hot topic in heavy ion collision and was found non-monotonic behavior with colliding energy, which was declared to relates to critical point of the QCD phase diagram. This talk focus on the light nuclei production within the framework of coalescence model. By implementation of the characteristic function of the spatial density distribution function of the phase space density, we derive the yield of light nuclei in terms of various orders of cumulants for the spatial density distribution function. We found that the leading terms of the spatial cumulants in the yield nuclei share the similar form and could be canceled out in light nuclei ratio, whereas the higher order ones (non-Gaussian shaped density profile) remain and play an important role in the interpretation of the behavior of light nuclei yield ratio。