Bulk viscosity of strange quark matter in an enhanced perturbative QCD model
文献类型：期刊论文
| 作者 | Peng GX(彭光雄) ; Li, L; Peng, GX; Xu, JF; Luo, YA
|
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2017 |
| 卷号 | 96期号:6页码:63016 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/PhysRevD.96.063016 |
| 文献子类 | Article |
| 英文摘要 | The bulk viscosity is studied in a thermodynamically enhanced perturbative QCD (EPQ) model that includes the running of both the strong coupling and the strange quark mass. Similar to the results in other effective models, the bulk viscosity in the EPQ model is larger by 1-2 orders of magnitude compared with that in the MIT bag model. Comparison among the different models indicates that the similarity in orders is mainly due to the inclusion of interactions between quarks. When the temperature is relatively low and enters the equation of state of quark matter, the bulk viscosity can be enormously enlarged. For the analytical expression of bulk viscosity, a reasonable range of model parameters is found. Moreover, due to the enlarged bulk viscosity, the damping time of a strange star with about 2 times the solar mass can be as short as 10(-3) second, showing that massive quark stars could reach stability quickly after some radial unstable activities. |
| 电子版国际标准刊号 | 2470-0029 |
| WOS关键词 | NEUTRON-STARS ; VIBRATIONS ; TEMPERATURE ; DENSITY ; MASS |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000411988200001 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/284911]  |
| 专题 | 高能物理研究所_理论物理室 高能物理研究所_粒子天体物理中心 |
| 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 | Peng GX,Li, L,Peng, GX,et al. Bulk viscosity of strange quark matter in an enhanced perturbative QCD model[J]. PHYSICAL REVIEW D,2017,96(6):63016. |
| APA | 彭光雄,Li, L,Peng, GX,Xu, JF,&Luo, YA.(2017).Bulk viscosity of strange quark matter in an enhanced perturbative QCD model.PHYSICAL REVIEW D,96(6),63016. |
| MLA | 彭光雄,et al."Bulk viscosity of strange quark matter in an enhanced perturbative QCD model".PHYSICAL REVIEW D 96.6(2017):63016. |
入库方式： OAI收割
来源：高能物理研究所
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