NANOGrav results and dark first order phase transitions

被引：0

作者：

Andrea Addazi

Yi-Fu Cai

Qingyu Gan

Antonino Marciano

Kaiqiang Zeng

机构：

[1] Sichuan University,Center for Theoretical Physics, College of Physics

[2] Istituto Nazionale di Fisica Nucleare,Department of Astronomy, School of Physical Sciences

[3] sezione Roma Tor Vergata,Chinese Academy of Sciences, Key Laboratory for Researches in Galaxies and Cosmology

[4] University of Science and Technology of China,School of Astronomy and Space Science

[5] University of Science and Technology of China,Department of Physics & Center for Field Theory and Particle Physics

[6] University of Science and Technology of China,Laboratori Nazionali di Frascati

[7] Fudan University,undefined

[8] Istituto Nazionale di Fisica Nucleare,undefined

来源：

Science China Physics, Mechanics & Astronomy | 2021年 / 64卷

关键词：

gravitational waves; first order phase transitions; warm dark matter; effective field theory; 04.30.-w; 11.15.Ex; 14.60.St; 98.80.-k;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The recent NANOGrav evidence of a common-source stochastic background provides a hint to gravitational waves (GW) radiation from the Early Universe. We show that this result can be interpreted as a GW spectrum produced from first order phase transitions (FOPTs) around a temperature in the keV-MeV window. Such a class of FOPTs at temperatures much below the electroweak scale can be naturally envisaged in several warm dark matter models such as Majoron dark matter.

引用

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