Speaker
Helena Kolesova
(University of Stavanger)
Description
Taking axion inflation as an example, we consider a scenario where the inflaton is coupled solely to a pure SU(3) Yang-Mills sector. In the low-energy phase of this sector, glueball states are formed. If non-renormalizable operators are considered, these glueballs may become unstable and reheat the standard model fields. Yet, for a certain parameter range, C-parity can protect part of the glueball species from decay and the C-odd glueballs can provide a viable dark matter candidate. We study the constraints related to dark matter stability and minimal reheating temperature of the standard model and conclude that this scenario is very predictive.
Primary author
Helena Kolesova
(University of Stavanger)
