Chiral relaxation time at the crossover of quantum chromodynamics
文献类型：期刊论文
| 作者 | Ruggieri, M; Chernodub, M; Peng GX(彭光雄) ; Peng, GX
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| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2016 |
| 卷号 | 94期号:5 |
| DOI | 10.1103/PhysRevD.94.054011 |
| 通讯作者 | 彭光雄 |
| 英文摘要 | We study microscopic processes responsible for chirality flips in the thermal bath of quantum chromodynamics at finite temperature and zero baryon chemical potential. We focus on the temperature range where the crossover from chirally broken phase to quark-gluon plasma takes place, namely, T similar or equal to (150, 200) MeV. The processes we consider are quark-quark scatterings mediated by collective excitations with the quantum number of pions and sigma meson; hence we refer to these processes simply as one-pion (one-sigma) exchanges. We use a Nambu-Jona-Lasinio model to compute equilibrium properties of the thermal bath, as well as the relevant scattering kernel to be used in the collision integral to estimate the chiral relaxation time tau. We find tau similar or equal to 0.1 divided by 1 fm/c around the chiral crossover. |
| 语种 | 英语 |
| WOS记录号 | WOS:000383150300006 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/260626]  |
| 专题 | 高能物理研究所_理论物理室 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Ruggieri, M,Chernodub, M,Peng GX,et al. Chiral relaxation time at the crossover of quantum chromodynamics[J]. PHYSICAL REVIEW D,2016,94(5). |
| APA | Ruggieri, M,Chernodub, M,彭光雄,&Peng, GX.(2016).Chiral relaxation time at the crossover of quantum chromodynamics.PHYSICAL REVIEW D,94(5). |
| MLA | Ruggieri, M,et al."Chiral relaxation time at the crossover of quantum chromodynamics".PHYSICAL REVIEW D 94.5(2016). |
入库方式： OAI收割
来源：高能物理研究所
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