Bulk strong matter: the trinity

被引:10
作者
Lai, Xiaoyu [1 ,2 ]
Xia, Chengjun [3 ]
Xu, Renxin [4 ,5 ]
机构
[1] Hubei Univ Educ, Dept Phys & Astron, Wuhan, Peoples R China
[2] Hubei Univ Educ, Res Ctr Astron, Wuhan, Peoples R China
[3] Yangzhou Univ, Coll Phys Sci & Technol, Ctr Gravitat & Cosmol, Yangzhou, Jiangsu, Peoples R China
[4] Peking Univ, Sch Phys, Beijing, Peoples R China
[5] Peking Univ, Kavli Inst Astron & Astrophys, Beijing, Peoples R China
基金
国家重点研发计划; 中国国家自然科学基金;
关键词
Compact star; dark matter; cosmic ray; quark; neutron star; NUGGET DARK-MATTER; QUARK; GLITCHES; MODEL;
D O I
10.1080/23746149.2022.2137433
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Our world is wonderful because of the normal but negligibly small baryonic part (i.e. atoms) although unknown dark matter and dark energy dominate the Universe. A stable atomic nucleus could be simply termed as 'strong matter' since its nature is dominated by the fundamental strong interaction. Is there any other form of strong matter? Although nuclei are composed of 2-flavoured (i.e. up and down flavours of valence quarks) nucleons, it is conjectured that bulk strong matter could be 3-flavoured (with additional strange quarks) if the baryon number exceeds the critical value, A(c) in which case quarks could be either free (so-called strange quark matter) or localized (in strangeons, coined by combining 'strange nucleon'). Bulk strong matter could be manifested in the form of compact stars, cosmic rays, and even dark matter. This trinity will be explained in this brief review that may impact dramatically on today's physics, particularly in the era of multi-messenger astronomy after the discovery of gravitational wave.
引用
收藏
页数:21
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