NANOGrav结果与暗色一级相变
高能物理 - 唯象学
2021-09-21 v2 广义相对论与量子宇宙学
摘要
近期NANOGrav关于公共源随机背景的证据为来自早期宇宙的引力波（GW）辐射提供了线索。我们表明，该结果可解释为在KeV-MeV窗口温度附近由一级相变（FOPTs）产生的GW谱。此类在远低于电弱标度温度下的FOPTs，可在若干温暗物质模型中自然设想，例如Majoron暗物质。
引用
@article{arxiv.2009.10327,
title = {NANOGrav results and Dark First Order Phase Transitions},
author = {Andrea Addazi and Yi-Fu Cai and Qingyu Gan and Antonino Marciano and Kaiqiang Zeng},
journal= {arXiv preprint arXiv:2009.10327},
year = {2021}
}
备注
More details and results on possible WDM-inspired GW spectra added, including more recent numerical tools in the subject. New references added. The main conclusions are substantially unchanged