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

Publication date: Available online 8 May 2019Source: Physics of the Dark UniverseAuthor(s): Debaprasad Maity, Pankaj SahaAbstractWe consider the CMB constrains 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(ϕ)∝ϕn around ϕ=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 (Maity and Saha, 2018), we generalize the connection between reheating and the present CMB data and the dark matter parameter space for general inflaton equation of state parameter.

Source: Physics of the Dark Universe - May 9, 2019 Category: Physics Source Type: research