Strange particles production in relativistic nucleus-nucleus collisions at RHIC and LHC energy regions

TL;DR

This paper uses the PACIAE model to analyze strange particle production and strangeness enhancement in relativistic nucleus-nucleus collisions at RHIC and LHC energies, successfully matching experimental data.

Contribution

It introduces the PACIAE model's application to describe strange particle production at high energies, emphasizing the role of rescatterings and suppression mechanisms.

Findings

PACIAE model accurately reproduces experimental results

Rescatterings and suppression mechanisms are crucial for strangeness production

Model describes centrality dependence of strange particle yields

Abstract

PACIAE, a parton and hadron cascade model, is utilized to systematically investigate strange particle production and strangeness enhancement in Au+Au collision and in Pb+Pb collision with the 200GeV at RHIC and 2.76TeV at LHC, respectively. The experimental results at different centrality, which come from the STAR collaboration and the ALICE collaboration, are well described by the PACIAE model. This may represent the importance of the parton and hadron rescatterings, as well as the reduction mechanism of strange quark suppression, added in the PACIAE model.