Modulated inflation models and primordial black holes

被引：6

作者：

Erfani, Encieh ^{[1
]}

机构：

[1] Inst Res Fundamental Sci IPM, Sch Phys, Tehran 1953833511, Iran

来源：

PHYSICAL REVIEW D | 2014年 / 89卷 / 08期

关键词：

PARTICLE PHYSICS MODELS; FLATNESS; UNIVERSE; HORIZON;

D O I：

10.1103/PhysRevD.89.083511

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

For the first time, the running of the running of the spectral index beta(s) has been measured by Planck. This parameter is crucial for dark matter primordial black holes (PBHs) formation. We study the PBHs formation in inflation potentials with superimposed periodic oscillations. We show that the value of beta(s) suggested by the recent cosmic microwave background data is easily explained in these models. As a by-product, we also show that the nonproduction of (long-lived) PBHs puts a stronger upper bound on beta(s).

引用

页数：12

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