A multi-temperature universe can allow a sub-MeV dark photon dark matter

被引：9

作者：

Aboubrahim, Amin ^{[1
]}

Feng, Wan-Zhe ^{[2
,3
]}

Nath, Pran ^{[4
]}

Wang, Zhu-Yao ^{[4
]}

机构：

[1] Westfalische Wilhelms Univ Munster, Inst Theoret Phys, Wilhelm Klemm Str 1, D-48149 Munster, Germany

[2] Tianjin Univ, Ctr Joint Quantum Studies, Sch Sci, Tianjin 300350, Peoples R China

[3] Tianjin Univ, Dept Phys, Sch Sci, Tianjin 300350, Peoples R China

[4] Northeastern Univ, Dept Phys, Boston, MA 02115 USA

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2021年 / 2021卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Beyond Standard Model; Cosmology of Theories beyond the SM; PARTICLES; LIMITS;

D O I：

10.1007/JHEP06(2021)086

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

An analysis of sub-MeV dark photon as dark matter is given which is achieved with two hidden sectors, one of which interacts directly with the visible sector while the second has only indirect coupling with the visible sector. The formalism for the evolution of three bath temperatures for the visible sector and the two hidden sectors is developed and utilized in solution of Boltzmann equations coupling the three sectors. We present exclusion plots where the sub-MeV dark photon can be dark matter. The analysis can be extended to a multi-temperature universe with multiple hidden sectors and multiple heat baths.

引用

页数：34

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