Nonthermal production of dark matter from primordial black holes

被引：69

作者：

Allahverdi, Rouzbeh ^{[1
]}

Dent, James ^{[2
]}

Osinski, Jacek ^{[1
]}

机构：

[1] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA

[2] Sam Houston State Univ, Dept Phys, Huntsville, TX 77341 USA

来源：

PHYSICAL REVIEW D | 2018年 / 97卷 / 05期

基金：

美国国家科学基金会;

关键词：

GRAVITATIONAL COLLAPSE; MASS; CONSTRAINTS;

D O I：

10.1103/PhysRevD.97.055013

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a scenario for nonthermal production of dark matter from evaporation of primordial black holes. A period of very early matter domination leads to formation of black holes with a maximum mass of similar or equal to 2 x 10(8) g, whose subsequent evaporation prior to big bang nucleosynthesis can produce all of the dark matter in the Universe. We show that the correct relic abundance can be obtained in this way for thermally underproduced dark matter in the 100 GeV-10 TeV mass range. To achieve this, the scalar power spectrum at small scales relevant for black hole formation should be enhanced by a factor of O(10(5)) thorn relative to the scales accessible by the cosmic microwave background experiments.

引用

页数：10

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