CMB constraints on dark matter phenomenology via reheating in minimal plateau inflation

Abstract

We consider the CMB constraints on reheating and dark matter parameter space for a specific plateau type inflationary model. The plateau inflationary models which are currently most favored models from data can be well approximated by a potential of the form $V(\varphi )\propto {\varphi }^n$ around $\varphi =0$. This fact makes it possible to study the reheating phase with general inflaton equation of state in a viable cosmological scenario. In addition, following our recent work[1], we generalize the connection between reheating and the present CMB data and the dark matter parameter space for general inflaton equation of state parameter.

Comments: Some bounds and results improved, Matches published version