Centrality dependence of thermal parameters in heavy-ion collisions at relativistic energies
Author(s) -
J. Cleymans,
B. Kämpfer,
S. Wheaton
Publication year - 2002
Publication title -
physical review c
Language(s) - English
Resource type - Journals
eISSN - 1089-490X
pISSN - 0556-2813
DOI - 10.1103/physrevc.65.027901
Subject(s) - centrality , large hadron collider , physics , hadron , heavy ion , nuclear physics , strangeness , thermal , beam energy , ion , beam (structure) , particle physics , atomic physics , thermodynamics , quantum mechanics , optics , mathematics , combinatorics
The centrality dependence of thermal parameters, characterizing the hadronmultiplicities, is determined phenomenologically for lead-on-lead collisions atCERN-SPS for a beam energy of 158 AGeV. The strangeness equilibration factorshows a clear, approximately linear, increase with increasing centrality, whilethe freeze-out temperature and chemical potential remain constant.Comment: 3 pages, 2 tables, 5 figure
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