Energy dependence of light (anti)nuclei and (anti)hypertriton production in the Au-Au collision from $\sqrt{s_{\rm{NN}}} =5.0$ to $5020$ GeV

TL;DR

This study investigates how the production of light (anti)nuclei and hypertriton varies with collision energy in gold-gold collisions, revealing a transition point near 20 GeV that may indicate QCD critical phenomena.

Contribution

It introduces a detailed analysis of energy dependence of light (anti)nuclei and hypertriton production using PACIAE+DCPC, identifying a potential transition point near 20 GeV.

Findings

Yields and ratios depend strongly on energy.

A transition point near 20 GeV is identified.

Results agree with experimental data.

Abstract

The energy dependence of light (anti)nuclei and (anti)hypertriton production are investigated in central Au-Au collisions from AGS up to LHC energies at midrapidity, using the parton and hadron cascade model (PACIAE) together with the dynamically constrained phase-space coalescence model(DCPC). We find that the yields, yield ratios of the antiparticles to their corresponding particles, the coalescence parameters $B_A$ and the strangeness population factor $s_3$ of light (anti)nuclei and (anti)hypertriton strongly depend on the energy. Furthermore, we analyze and discuss the strangeness population factor $s_3$ and the coalescence parameters $B_A$, and find a transition point near by 20 GeV. These results thus suggest the potential usefulness of the $s_3$ and $B_A$ of light nuclei production in relativistic heavy-ion collisions as a direct probe of the transition point associated with the QCD critical phenomena. The results from PACIAE+DCPC model are well consistent with experimental data.