Speaker
Francisco Barreto Basave
(Masters Student)
Description
The origin of matter in the universe from a decaying inflaton field in the process of reheating is a basic feature of all realistic inflationary models.
In this work we study the evolution of Dark Matter as a freeze-out process during reheating assuming this occurs at a minimum of a scalar potential that is expanded as a quartic power of the inflaton field. We consider the simplest scenario at the perturbative (Boltzmann) level and also the scenario where inflaton fragmentation occurs. This fragmentation is a consequence of the self-interaction of the inflaton which replaces the oscillating inflaton condensate for free inflaton particles.
Authors
Francisco Barreto Basave
(Masters Student)
Dr
Marcos Alejandro García García
