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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

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arxiv 1803.01547 v1 pith:2HM3GK4A submitted 2018-03-05 nucl-th hep-ph

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

Zi-Jian Dong , Gang Chen , Quan-Yu Wang , Zhi-Lei She , Yu-Liang Yan , Feng-Xian Liu , Dai-Mei Zhou , Ben-Hao Sa This is my paper
classification nucl-th hep-ph
keywords antilightnucleicoalescenceenergyhypertritonmodelproduction
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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.

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  1. Collision Energy Dependence of Hypertriton Production in Au+Au Collisions at RHIC

    nucl-ex 2026-04 unverdicted novelty 6.0

    Hypertriton yields and Lambda ratios increase at lower collision energies but remain a factor of two below thermal models, while the double ratio to triton production stays constant at 0.4, pointing to intrinsically l...