Study for (anti)hypertriton and light (anti)nuclei productions in high energy collisions at 200 GeV

TL;DR

This study uses combined models to investigate the production and distribution of (anti)hypertriton and light (anti)nuclei in high-energy collisions, comparing results with experimental data and analyzing particle-antiparticle ratios.

Contribution

It introduces a combined modeling approach to simulate (anti)nuclei production at 200 GeV and provides detailed predictions on yield ratios and rapidity distributions.

Findings

Antimatter yields are significantly lower than matter yields.

Model results agree well with PHOBOS experimental data.

Particle-antiparticle ratios increase with transverse momentum.

Abstract

We use the parton and hadron cascade (PACIAE) model and the dynamically constrained phase-space coalescence (DCPC) model to investigate the productions of (anti)hypertriton and light (anti)nuclei generated by 0-10% centrality $^{12}$C+$^{12}$C, $^{24}$Mg+$^{24}$Mg, $^{40}$Ca+$^{40}$Ca, and $^{64}$Cu+$^{64}$Cu collisions at $\sqrt{S_{NN}}$ = 200 GeV with $|y|$ $<$ 1.5 and $p_{T}$ $<$ 5. We study the yield ratios of the antiparticle to particle and the rapidity distributions of the different (anti)nuclei. We find that the amounts of antimatter produced are significantly lower than that of the corresponding particles, the results of theoretical models are well consistent with the PHOBOS data. The yield ratios of the particle to antiparticle in different transverse momentum regions are also given, and we find that the ratios are raise with the increase of the transverse momentum.