Chemical and thermal freeze-out of identified hadrons at the LHC

TL;DR

This paper investigates the chemical and thermal freeze-out processes of different hadron species in Pb+Pb collisions at the LHC using the VISHNU hybrid model, highlighting early freeze-out of multi-strange hadrons like $\\Xi$ and $\\Omega$.

Contribution

It provides a detailed analysis of the freeze-out dynamics of various hadrons, emphasizing the early freeze-out of multi-strange hadrons compared to others.

Findings

Multi-strange hadrons freeze out earlier than other species.

The evolution of particle yields and elastic collision distributions was analyzed.

Multi-strange hadrons like $\\Xi$ and $\\Omega$ experience early chemical and thermal freeze-out.

Abstract

This proceeding briefly summarizes our recent VISHNU hybrid model investigations on the chemical and thermal freeze-out of various hadrons species in 2.76 A TeV Pb+Pb collisions. Detailed analysis on the evolution of particle yields and the last elastic collisions distributions during the hadronic evolution reveals that the two multi-strange hadrons, $\Xi$ and $\Omega$, experience early chemical and thermal freeze-out when compared with other hadron species.