Primordial black holes and gravitational waves in hybrid inflation with chaotic potentials

被引：31

作者：

Ahmed, Waqas ^{[1
]}

Junaid, M. ^{[2
]}

Zubair, Umer ^{[3
,4
]}

机构：

[1] Hubei Polytech Univ, Sch Math & Phys, Huangshi 435003, Peoples R China

[2] Natl Ctr Phys, Islamabad, Pakistan

[3] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA

[4] St Josephs Univ, Dept Phys, Philadelphia, PA 19131 USA

来源：

NUCLEAR PHYSICS B | 2022年 / 984卷

关键词：

RADIATIVE-CORRECTIONS; NANOGRAV; SPACE;

D O I：

10.1016/j.nuclphysb.2022.115968

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：

We study the formation of primordial black hole (PBH) dark matter and the generation of scalar in-duced secondary gravitational waves (SIGWs) in a non-supersymmetric model of hybrid inflation with chaotic (polynomial-like) potential, including one-loop radiative corrections. A radiatively corrected ver-sion of these models is entirely consistent with Planck's data. By adding non-canonical kinetic energy term in the lagrangian, the inflation experiences a period of ultra-slow-roll, and the amplitude of pri-mordial power spectrum is enhanced to O(10-2). The enhanced power spectra of primordial curvature perturbations can have both sharp and broad peaks. A wide mass range of PBHs is realized in our model with the frequencies of scalar induced gravitational waves ranged from nHz to kHz. We present several benchmark points where the PBH mass generated during inflation is around (1 - 100) M (R), (10-9 - 10-7) M (R) and (10-16 - 10-11) M (R). The PBHs can make up most of the dark matter with masses around (10-16 - 10-11) M (R) and (1 - 100) M (R), and their associated SIGWs can be probed by the upcoming ground and space-based gravitational wave (GW) observatories. The evidence of stochastic process recently reported by NANOGrav may be interpreted as SIGWs associated with the formation of PBHs. These SIGWs may also be tested by future interferometer-type GW observations of SKA, DECIGO, LISA, BBO, TaiJi, TianQin, CE and ET. 337795922_20220924100812560 / urn:si:16282109

引用

页数：18

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