Primordial Black Hole Sterile Neutrinogenesis

Abril 2, 2024
De 12:00pm hasta 1:00pm

IFT Seminar Room/Red Room

Specialist level
Graciela Gelmini

IFT Seminar Room/Red Room


Sterile neutrinos are well-motivated and actively searched for new particles that would mix with the active neutrinos. We study their phenomenology when they are produced in the evaporation of early Universe black holes, a novel production mechanism that differs from all others and does not depend on the active-sterile mixing. The resulting hotter sterile neutrinos have a distinct spectrum and could be warm dark matter in the 0.3 MeV to 0.3 TeV mass range, distinct from the typical keV range. The possible coincidence of X-rays and gravitational waves is a unique novel signature of our scenario.