Interacting ud and uds quark matter at finite densities and quark stars
文献类型：期刊论文
| 作者 | Yuan, Wen-Li; Li, Ang1; Miao, Zhiqiang1; Zuo, Bingjun; Bai, Zhan3 |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2022 |
| 卷号 | 105期号:12页码:123004 |
| ISSN号 | 2470-0010 |
| 关键词 | EQUATION-OF-STATE STRANGE STARS NEUTRON-STARS BAYESIAN-INFERENCE VECTOR-INTERACTION MODEL MASS PHENOMENOLOGY CONVERSION MECHANISM |
| DOI | 10.1103/PhysRevD.105.123004 |
| 英文摘要 | The stability and equation of state of quark matter are studied within both two-flavor and (2 + 1)-flavor Nambu-Jona-Lasinio (NJL) models including the vector interactions. With a free parameter alpha, the Lagrangian is constructed by two parts, the original NJL Lagrangian and the Fiery transformation of it, as L = (1 - alpha)L-NJL + alpha L-Fierz. We find that there is a possibility for both ud nonstrange and uds strange matter being absolute stable, depending on the interplay of the confinement with quark vector interaction and the exchange interaction channels. The calculated quark star properties can reconcile with the recently measured masses and radii of PSR J0030 + 0451 and PSR J0740 + 6620, as well as the tidal deformability of GW170817. Furthermore, the more strongly interacting quark matter in the nonstrange stars allows a stiffer equation of state and consequently a higher maximum mass (similar to 2.7 M-circle dot) than the strange ones (similar to 2.1 M-circle dot). The sound velocities in strange and nonstrange quark star matter are briefly discussed compared to those of neutron star matter. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27776]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China 2.Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China 3.Xiamen Univ, Dept Astron, Xiamen 361005, Fujian, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, Wen-Li,Li, Ang,Miao, Zhiqiang,et al. Interacting ud and uds quark matter at finite densities and quark stars[J]. PHYSICAL REVIEW D,2022,105(12):123004. |
| APA | Yuan, Wen-Li,Li, Ang,Miao, Zhiqiang,Zuo, Bingjun,&Bai, Zhan.(2022).Interacting ud and uds quark matter at finite densities and quark stars.PHYSICAL REVIEW D,105(12),123004. |
| MLA | Yuan, Wen-Li,et al."Interacting ud and uds quark matter at finite densities and quark stars".PHYSICAL REVIEW D 105.12(2022):123004. |
入库方式： OAI收割
来源：理论物理研究所
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