Near-inflection point inflation and production of dark matter during reheating [CEA]

http://arxiv.org/abs/2211.15061


We study slow roll single field inflationary scenario and the production of non-thermal fermionic dark matter, together with standard model Higgs, during reheating. For the inflationary scenario, we have considered two models of polynomial potential – one is symmetric about the origin and another one is not. We fix the coefficients of the potential from the current Cosmic Microwave Background (CMB) data from Planck/Bicep. Next, we explore the allowed parameter space on the coupling $(y_\chi)$ with inflaton and mass $(m_\chi)$ of dark matter (DM) particles $(\chi)$ produced during reheating and satisfying CMB and several other cosmological constraints.

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A. Ghoshal, G. Lambiase, S. Pal, et. al.
Tue, 29 Nov 22
20/80

Comments: Prepared for Proceedings of XXV Bled Workshop “What comes beyond the Standard models?”