Speaker
Thomas REGGIO
(Laboratoire de Physique de Clermont Auvergne)
Description
The freeze-in mechanism is an alternative to standard thermal freeze-out for cosmic dark matter production.
Freeze-in predictions can be sensitive to the initial temperature at the onset of the radiation domination era (reheating temperature) which, in most computations, is taken to be (effectively) infinite.
I will discuss dark matter freeze-in in a scenario where the reheating temperature is lower than all the relevant mass scales in a simple extension of the Standard Model. I will highlight the interplay between different processes contributing to cosmic dark matter production under such modified cosmological assumptions and discuss their phenomenological implications.
Author
Thomas REGGIO
(Laboratoire de Physique de Clermont Auvergne)