A multi-temperature universe can allow a sub-MeV dark photon dark matter
| Autor: | Zhu-Yao Wang, Amin Aboubrahim, Pran Nath, Wan-Zhe Feng |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Physics
Nuclear and High Energy Physics Particle physics 010308 nuclear & particles physics media_common.quotation_subject Dark matter High Energy Physics::Phenomenology FOS: Physical sciences QC770-798 Cosmology of Theories beyond the SM 01 natural sciences Dark photon Universe symbols.namesake Coupling (physics) High Energy Physics - Phenomenology Chemical coupling High Energy Physics - Phenomenology (hep-ph) Nuclear and particle physics. Atomic energy. Radioactivity Beyond Standard Model 0103 physical sciences Boltzmann constant symbols 010306 general physics media_common |
| Zdroj: | Journal of High Energy Physics, Vol 2021, Iss 6, Pp 1-34 (2021) Journal of High Energy Physics |
| DOI: | 10.48550/arxiv.2103.15769 |
| Popis: | 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. Comment: 33 pages, 7 figures, 3 tables -- Accepted in JHEP |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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