Constraints on Majorana dark matter from a fourth lepton family

T. Hapola, M. Jarvinen, C. Kouvaris, Paolo Panci, Jussi Tuomas Virkajärvi

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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.
Original languageEnglish
JournalJournal of Cosmology and Astroparticle Physics
Volume2014
Issue number2
Pages (from-to)24
ISSN1475-7516
DOIs
Publication statusPublished - 2014

Keywords

  • dark matter theory dark matter detectors STERILE NEUTRINOS GAUGE-INVARIANCE STABLE PARTICLES ANNIHILATIONS ABUNDANCES COSMOLOGY CANDIDATE SEARCHES FERMI

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