Oct 2016 - Sep 2017

Dark Matter-neutrino interactions through the lens of their cosmological implications.

by Andrés Olivares (IPPP)

OC218 (IPPP)



Dark matter and neutrinos are the two strongest indicators of new physics beyond the Standard Model of Particle Physics but these are often treated as belonging to two different sectors. Yet Dark Matter-neutrino interactions are known to have cosmological consequences. As their impact has only been discussed sparsely and for very specific models, here we extend previous investigations to all possible scenarios with different dark matter candidates and different mediators using simplified models in an exhaustive way. If Dark Matter interacts with left handed Dirac neutrinos, most scenarios require the Dark Matter mass to be larger than few MeV if one wants to satisfy all the cosmological constraints, with the exception of Real Scalar Dark Matter coupled to a Dirac mediator and Vector Dark Matter coupled to a fermionic mediator, which require Dark Matter masses above 100 keV and 100 TeV respectively.