Thermal relaxation time in chemically non-equilibrated quark-gluon plasma
文献类型：期刊论文
| 作者 | Zhang XF(张晓菲); Zhao WQ(赵维勤) ; Zhang, XF; Chao, WQ
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| 刊名 | NUCLEAR PHYSICS A
 |
| 出版日期 | 1998 |
| 卷号 | 628期号:1页码:#REF! |
| 关键词 | quark-gluon plasma relaxation time chemical non-equilibration |
| 通讯作者 | Zhang, XF (reprint author), CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China. |
| 英文摘要 | 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. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Nuclear |
| 收录类别 | SCI |
| WOS记录号 | WOS:000072229300011 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/226595]  |
| 专题 | 高能物理研究所_理论物理室 |
| 推荐引用方式 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!. |
入库方式： OAI收割
来源：高能物理研究所
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