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Constraints on Majorana dark matter from a fourth lepton family

Abstract : We study the possibility of dark matter in the form of heavy neutrinos from a fourth lepton family with helicity suppressed couplings such that dark matter is produced thermally via annihilations in the early Universe. We present all possible constraints for this scenario coming from LHC and collider physics, underground direct detectors, neutrino telescopes, and indirect astrophysical searches. Although we embed the WIMP candidate within a model of composite dynamics, the majority of our results are model independent and applicable to all models where heavy neutrinos with suppressed couplings account for the dark matter abundance.
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Submitted on : Tuesday, April 19, 2022 - 4:16:38 PM
Last modification on : Wednesday, April 20, 2022 - 3:40:05 AM

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Tuomas Hapola, Matti Järvinen, Chris Kouvaris, Paolo Panci, Jussi Virkajärvi. Constraints on Majorana dark matter from a fourth lepton family. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2014, 2014, ⟨10.1088/1475-7516/2014/02/050⟩. ⟨insu-03645707⟩

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