Speaker
Dr
GOUDELIS Andreas
(LPCA - Clermont Ferrand)
Description
Freeze-in is a mechanism for cosmic dark matter production which has emerged as an interesting alternative to standard thermal freeze-out. Until recently, freeze-in computations were typically performed assuming that the onset of radiation domination in the Universe occurred at a very high initial ("reheating") temperature. However, if this temperature becomes comparable or smaller than some of the relevant mass scales in the theory, the cosmologically viable parameter space of freeze-in dark matter models undergoes drastic modifications. I will discuss such low reheating temperature scenarios both from the point of view of cosmological dark matter production and of their phenomenological implications.
Author
Dr
GOUDELIS Andreas
(LPCA - Clermont Ferrand)