Speaker
Yoo-Jin Kang
(Chung-Ang University)
Description
We considered the effects of the linear non-minimal coupling for a singlet inflaton unitarizing the Higgs inflation. The inflaton field called sigma field can couple to the Standard Model through the trace of the energy-momentum tensor. Thus, regarding the sigma field as a decaying dark matter, we considered the non-thermal production mechanisms for dark matter from the decays of Higgs and inflaton condensate. We obtained the correct relic abundance of inflaton dark matter consistent with BBN and CMB constraints.
