Production of purely gravitational dark matter: the case of fermion and vector boson
By Yohei Ema, K. Nakayama, Yong Tang. Journal of High Energy Physics, 2019
157 citations recorded by the source corpus.
We consider the simplest possibility for a model of particle dark matter in which dark matter has only gravitational interaction with the standard model sector. Even in such a case, it is known that the gravitational particle production in an expanding universe may lead to a correct relic abundance depending on the ination scale and the mass of dark matter particle. We provide a comprehensive and systematic analysis of the gravitational particle production of fermionic and vectorial dark matter, and emphasize that particles which are much heavier than the Hubble parameter but lighter than inaton can also be produced abundantly.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/4c06bd8b77d6241775b3e22516afeb2f41c671b6
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Citations in the corpus
- Gravitational production of vector dark matter (2020, background): “Recently, there has been a renewed interest in models of gravitational production of DM during and after inflation due to quantum fluctuations [15–33].”