Symmetry energy of strange quark matter and tidal deformability of strange quark stars
文献类型：期刊论文
| ; | |
| 作者 | Xu, JF; Xia, CJ; Lu, ZY; Peng, GX ; Zhao, YP
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| 刊名 | NUCLEAR SCIENCE AND TECHNIQUES
 ; NUCLEAR SCIENCE AND TECHNIQUES
|
| 出版日期 | 2022 ; 2022 |
| 卷号 | 33期号:11页码:143 |
| 关键词 | Symmetry energy Symmetry energy Strange quark matter Strange stars Tidal deformability Strange quark matter Strange stars Tidal deformability |
| ISSN号 | 1001-8042 ; 1001-8042 |
| DOI | 10.1007/s41365-022-01130-x ; 10.1007/s41365-022-01130-x |
| 文献子类 | Article ; Article |
| 英文摘要 | Research performed during the past decade revealed an important role of symmetry energy in the equation of state (EOS) of strange quark matter (SQM). By introducing an isospin-dependent term into the quark mass scaling, the SQM stability window in the equivparticle model was studied. The results show that a sufficiently strong isospin dependence C-I can significantly widen the SQM region of absolute stability, yielding results that simultaneously satisfy the constraints of the astrophysical observations of PSR J1614-2230 with 1.928 +/- 0.017 M-circle dot and tidal deformability 70 <= Lambda(1.4) <= 580 measured in the event GW170817. With increasing C-I, the difference between the u, d, and s quark fractions for the SQM in beta-equilibrium becomes inconspicuous for C > 0, leading to small isospin asymmetry delta, and further resulting in similar EOS and structures of strange quark stars (SQSs). Moreover, unlike the behavior of the maximum mass of u-d QSs, which varies with CI depending on the sign of the parameter C, the maximum mass of the SQSs decreases monotonously with increasing C-I.; Research performed during the past decade revealed an important role of symmetry energy in the equation of state (EOS) of strange quark matter (SQM). By introducing an isospin-dependent term into the quark mass scaling, the SQM stability window in the equivparticle model was studied. The results show that a sufficiently strong isospin dependence C-I can significantly widen the SQM region of absolute stability, yielding results that simultaneously satisfy the constraints of the astrophysical observations of PSR J1614-2230 with 1.928 +/- 0.017 M-circle dot and tidal deformability 70 <= Lambda(1.4) <= 580 measured in the event GW170817. With increasing C-I, the difference between the u, d, and s quark fractions for the SQM in beta-equilibrium becomes inconspicuous for C > 0, leading to small isospin asymmetry delta, and further resulting in similar EOS and structures of strange quark stars (SQSs). Moreover, unlike the behavior of the maximum mass of u-d QSs, which varies with CI depending on the sign of the parameter C, the maximum mass of the SQSs decreases monotonously with increasing C-I. |
| 电子版国际标准刊号 | 2210-3147 ; 2210-3147 |
| 语种 | 英语 ; 英语 |
| WOS记录号 | WOS:000881996700001 ; WOS:000881996700001 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/300059]  |
| 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 | Xu, JF,Xia, CJ,Lu, ZY,et al. Symmetry energy of strange quark matter and tidal deformability of strange quark stars, Symmetry energy of strange quark matter and tidal deformability of strange quark stars[J]. NUCLEAR SCIENCE AND TECHNIQUES, NUCLEAR SCIENCE AND TECHNIQUES,2022, 2022,33, 33(11):143, 143. |
| APA | Xu, JF,Xia, CJ,Lu, ZY,Peng, GX,&Zhao, YP.(2022).Symmetry energy of strange quark matter and tidal deformability of strange quark stars.NUCLEAR SCIENCE AND TECHNIQUES,33(11),143. |
| MLA | Xu, JF,et al."Symmetry energy of strange quark matter and tidal deformability of strange quark stars".NUCLEAR SCIENCE AND TECHNIQUES 33.11(2022):143. |
入库方式： OAI收割
来源：高能物理研究所
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