PoS - Proceedings of Science
Volume 292 - Corfu Summer Institute 2016 "School and Workshops on Elementary Particle Physics and Gravity" (CORFU2016) - Summer School and Workshop on the Standard Model and Beyond
Self-Interacting Right-Handed Neutrinos as Warm Dark Matter and Small-Scale Cosmology “Crisis"
N. Mavromatos
Full text: pdf
Pre-published on: October 04, 2017
Published on: October 05, 2017
In the talk, I review some recent developments on the topic of self-interacting Dark Matter (SIDM), paying particular attention to restrictions on the SIDM (total) cross section from the use of novel observables in merging galactic structures, as well as the r\^ole of SIDM on the milky way halo and its central region. In this latter context, I discuss interesting particle-physics inspired SIDM models involving self-interacting right-handed (Majorana) neutrino DM (with mass of a few tens of keV), that may exist in minimal extensions of the Standard Model. I also describe briefly the phenomenology of these models, and argue that they can tackle the basic problems of
the ``small-scale Cosmology crisis''.
DOI: https://doi.org/10.22323/1.292.0031
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