Reconstructing non-standard cosmologies with dark matter

被引：46

作者：

Arias, Paola ^{[1
]}

Bernal, Nicolas ^{[2
]}

Herrera, Alan ^{[2
,3
]}

Maldonado, Carlos ^{[1
]}

机构：

[1] Univ Santiago Chile, Dept Fis, Casilla 307, Santiago, Chile

[2] Univ Antonio Narino, Ctr Invest, Carrera 3 Este 47A-15, Bogota, Colombia

[3] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2019年 / 10期

基金：

欧盟地平线“2020”;

关键词：

cosmology of theories beyond the SM; dark matter theory; physics of the early universe; RELIC DENSITY; CONSTRAINTS;

D O I：

10.1088/1475-7516/2019/10/047

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Once dark matter has been discovered and its particle physics properties have been determined, a crucial question rises concerning how it was produced in the early Universe. If its thermally averaged annihilation cross section is in the ballpark of few x 10(-26) cm(3)/s, the WIMP mechanism in the standard cosmological scenario (i.e. radiation dominated Universe) will be highly favored. If this is not the case one can either consider an alternative production mechanism, or a non-standard cosmology. Here we study the dark matter production in scenarios with a non-standard expansion history. Additionally, we reconstruct the possible non-standard cosmologies that could make the WIMP mechanism viable.

引用

页数：22

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