Detectable gravitational wave signals from inflationary preheating

被引：8

作者：

Cui, Yanou ^{[1
]}

Sfakianakis, Evangelos I. ^{[2
]}

机构：

[1] Univ Calif Riverside, Dept Phys & Astron, Riverside, CA 92521 USA

[2] Barcelona Inst Sci & Technol BIST, Inst Fis Altes Energies IFAE, Campus UAB, Barcelona 08193, Spain

来源：

PHYSICS LETTERS B | 2023年 / 840卷

关键词：

Gravitational waves; Preheating; Inflation; Cosmology; Beyond the standard model particle physics;

D O I：

10.1016/j.physletb.2023.137825

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider gravitational wave (GW) production during preheating in hybrid inflation models where an axion-like waterfall field couples to Abelian gauge fields. Based on a linear analysis, we find that the GW signal from such models can be within the reach of a variety of foreseeable GW experiments such as LISA, AEDGE, ET and CE, and is close to that of LIGO A+, both in terms of frequency range and signal strength. Furthermore, the resultant GW signal is helically polarized and thus may distinguish itself from other sources of stochastic GW background. Finally, such models can produce primordial black holes that can compose dark matter and lead to merger events detectable by GW detectors.(c) 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons .org /licenses /by /4 .0/). Funded by SCOAP3.

引用

页数：9

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