Chemical freeze-out in relativistic heavy-ion collisions

doi:10.1016/j.physletb.2017.06.061

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	Chemical freeze-out in relativistic heavy-ion collisions
	Xu, J; Ko, CM
	2017
发表期刊	PHYSICS LETTERS B
ISSN	0370-2693
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
DOI	10.1016/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
推荐引用方式 GB/T 7714	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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