Solution to the hyperon puzzle using dark matter
文献类型：期刊论文
| 作者 | Del Popolo, Antonino3,4,5,7; Deliyergiyev, Maksym2; Le Delliou, Morgan1,6 |
| 刊名 | PHYSICS OF THE DARK UNIVERSE
 |
| 出版日期 | 2020-12-01 |
| 卷号 | 30页码:12 |
| ISSN号 | 2212-6864 |
| 关键词 | Neutron stars Dark matter Hyperon puzzle Dark matter interaction strength Mass-radius relations Galaxy center |
| DOI | 10.1016/j.dark.2020.100622 |
| 通讯作者 | Le Delliou, Morgan(delliou@lzu.edu.cn) |
| 英文摘要 | In this paper, we studied the "hyperon puzzle", a problem that nevertheless the large number of studies is still an open problem. The solution of this issue requires one or more mechanisms that could eventually provide the additional repulsion needed to make the EoS stiffer and, therefore, the value of M-max,M-T compatible with the current observational limits. In this paper we proposed that including dark matter (DM) admixed with ordinary matter in neutron stars (NSs), change the hydrostatic equilibrium and may explain the observed discrepancies, regardless to hyperon multi-body interactions, which seem to be unavoidable. We have studied how non-self-annihilating, and self-interacting, DM admixed with ordinary matter in NSs changes their inner structure, and discussed the mass-radius relations of such NSs. We considered DM particle masses of 1, 10 and 100 GeV, while taking into account a rich list of the DM interacting strengths, y. By analyzing the multidimensional parameter space, including several quantities like: a. the DM interacting strength, b. the DM particle mass as well as the quantity of DM in its interior, and c. the DM fraction, f(DM), we put constraints in the parameter space f(DM) - p'(DM)/p'(OM). Our bounds are sensitive to the recently observed NSs total masses. (C) 2020 Elsevier B.V. All rights reserved. |
| 资助项目 | Polish National Science Centre (NCN)[2016/23/B/ST2/00692] ; Lanzhou University starting fund, China ; Fundamental Research Funds for the Central Universities, China[lzujbky-2019-25] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000595300400038 |
| 资助机构 | Polish National Science Centre (NCN) ; Lanzhou University starting fund, China ; Fundamental Research Funds for the Central Universities, China |
| 源URL | [http://119.78.100.186/handle/113462/138471]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Le Delliou, Morgan |
| 作者单位 | 1.Univ Lisbon, Inst Astrofis & Ciencias Espaco, Fac Ciencias, Ed C8, P-1769016 Lisbon, Portugal 2.Jan Kochanowski Univ Humanities & Sci, Inst Phys, PL-25406 Kielce, Poland 3.Russian Acad Sci, Inst Astron, Pyatnitskaya Str 48, Moscow 119017, Russia 4.INFN Sez Catania, Via S Sofia 64, I-95123 Catania, Italy 5.Univ Catania, Dipartimento Fis & Astron, Viale Andrea Doria 6, I-95125 Catania, Italy 6.Lanzhou Univ, Inst Theoret Phys, Sch Phys Sci & Technol, 222 South Tianshui Rd, Lanzhou 730000, Gansu, Peoples R China 7.Chinese Acad Sci, Inst Modern Phys, POB 31, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Del Popolo, Antonino,Deliyergiyev, Maksym,Le Delliou, Morgan. Solution to the hyperon puzzle using dark matter[J]. PHYSICS OF THE DARK UNIVERSE,2020,30:12. |
| APA | Del Popolo, Antonino,Deliyergiyev, Maksym,&Le Delliou, Morgan.(2020).Solution to the hyperon puzzle using dark matter.PHYSICS OF THE DARK UNIVERSE,30,12. |
| MLA | Del Popolo, Antonino,et al."Solution to the hyperon puzzle using dark matter".PHYSICS OF THE DARK UNIVERSE 30(2020):12. |
入库方式： OAI收割
来源：近代物理研究所
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