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.

arXiv commentSome bounds and results improved, Matches published version

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• (P)reheating after minimal Plateau Inflation and constraints from CMB
• WIMPs during Reheating
• Accounting for the time evolution of the equation of state parameter during reheating
• The Inflaton Portal to a Highly decoupled EeV Dark Matter Particle
• Two phase reheating: CMB constraints on inflaton and dark matter phenomenology
• Confronting Dark Matter Freeze-In during Reheating with Constraints from Inflation
• Constraining Nonthermal Dark Matter's Impact on the Matter Power Spectrum
• Effective Theory of Inflationary Magnetogenesis and Constraints on Reheating
• Variable Inflaton Equation of State and Reheating
• CMB imprints of high scale non-thermal leptogenesis
• Reheating constraints on mutated hilltop inflation
• Thermal and nonthermal dark matters with gravitational neutrino reheating
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• Fingerprints of freeze-in dark matter in an early matter-dominated era