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Chemical freeze-out in relativistic heavy-ion collisions [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 2017.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description
pages 290-293 : digital, PDF file
Additional Creators
United States. Department of Energy, National Natural Science Foundation of China (NSFC), Zhongguo ke xue yuan, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
One surprising result in relativistic heavy-ion collisions is that the abundance of various particles measured in experiments is consistent with the picture that they reach chemical equilibrium at a temperature much higher than the temperature they freeze out kinetically. Using a multiphase transport model to study particle production in these collisions, we find, as an example, that the effective pion to nucleon ratio, which includes those from resonance decays, indeed changes very little during the evolution of the hadronic matter from the chemical to the kinetic freeze-out, and it is also accompanied by an almost constant specific entropy. Finally, we further use a hadron resonance gas model to illustrate the results from the transport model study.
Report Numbers
E 1.99:1425948
Subject(s)
Note
Published through SciTech Connect.
06/26/2017.
": S0370269317305373"
"A-1358"
Physics Letters. Section B 772 C ISSN 0370-2693 AM
Jun Xu; Che Ming Ko.
Texas A&M Univ., College Station, TX (United States)
Welch Foundation
Funding Information
SC0015266
2015CB856904
2014CB845401
11475243
11421505
Y290061011
Y526011011
15DZ2272100
13PJ1410600
A-1358
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