23-27 May 2016
Europe/Madrid timezone

Sterile neutrino portal to Dark Matter

23 May 2016, 15:00
Contributed talk Astro/Cosmo/Neutrinos Astro-Neutrino 1


Nuria Rius (IFIC, CSIC-Univ Valencia)


We analyze a simple extension of the Standard Model (SM) with a dark sector composed of a scalar and a fermion, both singlets under the SM gauge group but charged under a dark sector symmetry group, ${\rm G_{DM}}$. The lightest of them is stable. Sterile neutrinos, which are singlets under both groups, mediate the interactions between the dark sector and the SM particles, and generate masses for the active neutrinos via the seesaw mechanism. We explore the parameter space region where the observed dark matter relic abundance is determined by the annihilation into sterile neutrinos, both for fermion and scalar dark matter particles. We also study the constraints from direct dark matter searches and the prospects for indirect detection.

Primary author

Nuria Rius (IFIC, CSIC-Univ Valencia)


Mr. Miguel Escudero (UV) Prof. Verónica Sanz (Department of Physics and Astronomy, University of Sussex, Brighton BN1 9QH, UK)

Presentation Materials

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