Chemical freeze-out in relativistic heavy-ion collisions
Xu, J; Ko, CM
2017
发表期刊PHYSICS LETTERS B
ISSN0370-2693
卷号772期号:-页码:290-293
文章类型期刊论文
摘要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. We further use a hadron resonance gas model to illustrate the results from the transport model study. (C) 2017 The Author(s). Published by Elsevier B.V.
关键词Nucleus-nucleus Collisions Entropy Production Hadron-production Matter Collaboration Model
DOI10.1016/j.physletb.2017.06.061
关键词[WOS]NUCLEUS-NUCLEUS COLLISIONS ; ENTROPY PRODUCTION ; HADRON-PRODUCTION ; MATTER ; COLLABORATION ; MODEL
收录类别SCI
语种英语
WOS记录号WOS:000411369700046
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/28576
专题中科院上海应用物理研究所2011-2018年
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Xu, J,Ko, CM. Chemical freeze-out in relativistic heavy-ion collisions[J]. PHYSICS LETTERS B,2017,772(-):290-293.
APA Xu, J,&Ko, CM.(2017).Chemical freeze-out in relativistic heavy-ion collisions.PHYSICS LETTERS B,772(-),290-293.
MLA Xu, J,et al."Chemical freeze-out in relativistic heavy-ion collisions".PHYSICS LETTERS B 772.-(2017):290-293.
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