Flavour and Energy Dependence of Chemical Freeze-out Temperatures in Relativistic Heavy Ion Collisions from RHIC-BES to LHC Energies

Autor:	Flor, Fernando Antonio, Olinger, Gabrielle, Bellwied, Rene
Rok vydání:	2020
Předmět:	Nuclear Experiment High Energy Physics - Experiment High Energy Physics - Phenomenology Nuclear Theory
Druh dokumentu:	Working Paper
DOI:	10.1016/j.physletb.2021.136098
Popis:	We present calculations of the chemical freeze-out temperature (T_ch) based on particle yields from STAR and ALICE measured at collision energies ranging from sqrt{s_{NN}} = 11.5 GeV to 5.02 TeV. Employing the Grand Canonical Ensemble approach using the Thermal-FIST Hadron Resonance Gas model package, we show evidence for a flavour-dependent chemical freeze-out in the crossover region of the QCD phase diagram. At a vanishing baryochemical potential, we calculate light and strange flavour freeze-out temperatures T_L = 150.2 +- 2.6 MeV and T_S = 165.1 +- 2.7 MeV, respectively. Comment: 6 pages, 4 figures, 2 tables. Submitted to and accepted by Physics Letters B
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2009.14781 Zobrazit plný text záznamu View this record from Arxiv