Author:
Ema Yohei,Nakayama Kazunori,Tang Yong
Abstract
Abstract
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.
Publisher
Springer Science and Business Media LLC
Subject
Nuclear and High Energy Physics
Reference48 articles.
1. L. Parker, Quantized fields and particle creation in expanding universes. 1., Phys. Rev.183 (1969) 1057 [INSPIRE].
2. N.D. Birrell and P.C.W. Davies, Quantum fields in curved space, Cambridge University Press, Cambridge U.K. (1982).
3. L.H. Ford, Gravitational particle creation and inflation, Phys. Rev.D 35 (1987) 2955 [INSPIRE].
4. D.J.H. Chung, E.W. Kolb and A. Riotto, Superheavy dark matter, Phys. Rev.D 59 (1999) 023501 [hep-ph/9802238] [INSPIRE].
5. D.J.H. Chung, P. Crotty, E.W. Kolb and A. Riotto, On the gravitational production of superheavy dark matter, Phys. Rev.D 64 (2001) 043503 [hep-ph/0104100] [INSPIRE].
Cited by
115 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献