Production of multistrange hadrons, light nuclei and hypertriton in central Au+Au collisions at $\sqrt{s_{NN}}=$ 11.5 and 200 GeV

TL;DR

This study uses a coalescence model to analyze the production of multistrange hadrons, light nuclei, and hypertriton in central Au+Au collisions at 11.5 and 200 GeV, revealing exponential suppression with increasing strangeness and nucleon number.

Contribution

It provides new insights into the production rates and strangeness population factors of multistrange particles and light nuclei at different collision energies using a naive coalescence approach.

Findings

Production rate decreases significantly with each additional nucleon.

Yield of multistrange hadrons decreases exponentially with strangeness quantum number.

Strangeness population factors vary with transverse momentum and energy.

Abstract

The production of dibaryons, light nuclei and hypertriton in the most central Au+Au collisions at $\sqrt{s_{NN}}=$ 11.5 and 200 GeV are investigated by using a naive coalescence model. The production of light nuclei is studied and found that the production rate reduces by a factor of 330 (1200) for each extra nucleon added to nuclei at $\sqrt{s_{NN}}=$ 11.5 (200) GeV. The $p_{T}$ integrated yield of multistrange hadrons falls exponentially as strangeness quantum number increases. We further investigate strangeness population factor $S_{3}, S_{2}$ as a function of transverse momentum as well as $\sqrt{s_{NN}}$. The calculations for $\sqrt{s_{NN}}=$ 11.5 GeV presented here will stimulate interest to carry out these measurements during the phase-II of beam energy scan program at STAR experiment.