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

15th International Conference on Strangeness in Quark Matter

Zhu, Xiangrong^1 ; Song, Huichao^1,2,3

Department of Physics, State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing

100871, China^1

Collaborative Innovation Center of Quantum Matter, Beijing

100871, China^2

Center for High Energy Physics, Peking University, Beijing

100871, China^3

关键词: Elastic collision;    Hybrid model;    Thermal freezes;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/668/1/012098/pdf
DOI  :  10.1088/1742-6596/668/1/012098

来源: IOP

【 摘 要 】

This proceedings contribution 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, Ξ and ω, experience early chemical and thermal freeze-out when compared with other hadron species.