The freeze-out properties of hyperons in a microscopic transport model

TL;DR

This paper investigates the freeze-out properties of hyperons in relativistic heavy-ion collisions using a microscopic transport model, revealing how different baryons freeze out at varying times and conditions.

Contribution

It provides new insights into the freeze-out sequence and conditions of hyperons, highlighting the energy dependence and potential universal behavior in hadronizing quark-gluon plasma.

Findings

Omega freezes out earlier than other baryons.

Freeze-out temperature and energy density increase with beam energy.

Potential universal freeze-out conditions in quark-gluon plasma.

Abstract

The excitation function of freeze-out time, average freeze-out temperature and freeze-out energy density of (multi-) strange baryons created in relativistic heavy-ion collisions is investigated in the framework of a microscopic transport model. We find that the Omega on average freezes out earlier than the nucleon, Xi and Lambda. The average freeze-out temperature and energy density as well as the spread between the different baryonicstates increase monotonously with increasing beam energy and should approach a universal value in the case of a hadronizing Quark-Gluon-Plasma.