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Thermal relaxation time in chemically non-equilibrated quark-gluon plasma
Zhang XF(张晓菲); Zhao WQ(赵维勤); Zhang, XF; Chao, WQ
1998
发表期刊NUCLEAR PHYSICS A
卷号628期号:1页码:#REF!
通讯作者Zhang, XF (reprint author), CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
摘要The definition of thermal relaxation time is extended to chemically non-equilibrated quark-gluon plasma and the chemical non-equilibrated thermal relaxation times for partons are calculated using the non-equilibrium Debye mass as the infrared regulator. The dependence of the thermal relaxation time on the fugacity is given and the influence of the chemical non-equilibration is discussed. We find that there are threshold fugacities lambda(g)* and lambda(q)* for gluons and quarks. for lambda(g) < lambda(g)*(lambda(q) < lambda(q)*), tau(g)(NEQ)/tau(g)(EQ) (tau(q)(NEQ)/tau(q)(EQ)) decreases strongly with increasing fugacity, while for lambda(g) > lambda(g)*(lambda(q) > lambda(q)*), ratios are almost 1. It is shown that there is also the two-stage equilibration in a chemically non-equilibrated plasma. We also discussed the effect of using the non-equilibrium Debye mass as the infrared cutoff. (C) 1998 Published by Elsevier Science B.V.
文章类型Article
关键词quark-gluon plasma relaxation time chemical non-equilibration
学科领域Physics
DOI10.1016/S0375-9474(97)00619-2
收录类别SCI
WOS类目Physics, Nuclear
WOS记录号WOS:000072229300011
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被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/226595
专题理论物理室
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GB/T 7714
Zhang XF,Zhao WQ,Zhang, XF,et al. Thermal relaxation time in chemically non-equilibrated quark-gluon plasma[J]. NUCLEAR PHYSICS A,1998,628(1):#REF!.
APA 张晓菲,赵维勤,Zhang, XF,&Chao, WQ.(1998).Thermal relaxation time in chemically non-equilibrated quark-gluon plasma.NUCLEAR PHYSICS A,628(1),#REF!.
MLA 张晓菲,et al."Thermal relaxation time in chemically non-equilibrated quark-gluon plasma".NUCLEAR PHYSICS A 628.1(1998):#REF!.
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