A multi-temperature universe can allow a sub-MeV dark photon dark matter
High Energy Physics - Phenomenology
2021-06-30 v3
Abstract
An analysis of sub-MeV dark photon as dark matter is given which is achieved with two hidden sectors, one of which interacts directly with the visible sector while the second has only indirect coupling with the visible sector. The formalism for the evolution of three bath temperatures for the visible sector and the two hidden sectors is developed and utilized in solution of Boltzmann equations coupling the three sectors. We present exclusion plots where the sub-MeV dark photon can be dark matter. The analysis can be extended to a multi-temperature universe with multiple hidden sectors and multiple heat baths.
Keywords
Cite
@article{arxiv.2103.15769,
title = {A multi-temperature universe can allow a sub-MeV dark photon dark matter},
author = {Amin Aboubrahim and Wan-Zhe Feng and Pran Nath and Zhu-Yao Wang},
journal= {arXiv preprint arXiv:2103.15769},
year = {2021}
}
Comments
33 pages, 7 figures, 3 tables -- Accepted in JHEP