Speaker
James Cline
(McGill University, (CA))
Description
It has long been believed that ordinary neutrinos cannot be the dark
matter of the Universe. We present a loophole that allows for
neutrinos to be dark matter in the bulk of the Universe, while a light
scalar field, that can decay into neutrinos, is the main dark matter
component in galaxies, so that the Tremaine-Gunn limit is
satisfied. The cosmic neutrino background would have 100 times
greater energy density than in standard cosmology, and could be
observable in future neutrino telescopes by being boosted by energetic
cosmic rays.
Authors
Gonzalo Herrera
(TUM, MPP)
James Cline
(McGill University, (CA))
Jean-Samuel Roux
(McGill University)