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- Title
Asymmetric dark matter and the scalar-tensor model.
- Authors
Wang, Shun-Zhi; Iminniyaz, Hoernisa; Mamat, Mamatrishat
- Abstract
The relic abundance of asymmetric dark matter particles in the scalar-tensor model is analyzed in this paper. We extend the numerical and analytical calculations of the relic density of the asymmetric dark matter in the standard cosmological scenario to the nonstandard cosmological scenario. We focus on the scalar-tensor model. Hubble expansion rate is changed in the nonstandard cosmological scenario. This leaves its imprint on the relic density of dark matter particles. In this paper we investigate to what extent the asymmetric dark matter particle's relic density is changed in the scalar-tensor model. We use the observed present day dark matter abundance to find the constraints on the parameter space in this model.
- Subjects
DARK matter; PARTICLES (Nuclear physics); SCALAR field theory; HUBBLE'S law; PARTICLE density (Nuclear chemistry)
- Publication
International Journal of Modern Physics A: Particles & Fields; Gravitation; Cosmology; Nuclear Physics, 2016, Vol 31, Issue 7, p-1
- ISSN
0217-751X
- Publication type
Article
- DOI
10.1142/S0217751X16500214