Orateur
Juan Herrero Garcia
(IFIC, UV/CSIC)
Description
In this talk we will discuss the possibility of communicating between the visible and dark sectors via right-handed sterile neutrinos, which generate active neutrino masses. We will focus on the case of Majorana dark matter, with its relic abundance set by thermal freeze-out through annihilations into sterile neutrinos. We consider both an effective field theory approach and some simplified models. In some cases, there is an interesting connection with the Dirac/Majorana character of active neutrinos. Finally, we analyse the phenomenology of a particular model in which the Majorana mass of the sterile neutrinos is radiatively generated.
