Axion dark matter from first-order phase transition, and very high energy photons from GRB 221009A

We study an axion-like particle (ALP) that experiences a first-order phase transition with respect to its mass or potential minimum. This can be realized if the ALP obtains a potential from non-perturbative effects of SU(N) gauge theory that is confined via the first-order phase transition. Similar...

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Bibliographic Details
Main Authors: Shota Nakagawa, Fuminobu Takahashi, Masaki Yamada, Wen Yin
Format: Article
Language:English
Published: Elsevier 2023-04-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269323001582