skip to main content

SciTech ConnectSciTech Connect

Title: Constraints on Majorana dark matter from a fourth lepton family

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.
Authors:
 [1] ;  [2] ; ; ;  [3]
  1. Institute for Particle Physics Phenomenology, Durham University, South Road, Durham DH1 3LE (United Kingdom)
  2. Crete Center for Theoretical Physics, University of Crete, 71003 Heraklion (Greece)
  3. CP "3-Origins and DIAS, University of Southern Denmark, Campusvej 55, DK-5230 Odense M (Denmark)
Publication Date:
OSTI Identifier:
22370671
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2014; Journal Issue: 02; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ANNIHILATION; ASTROPHYSICS; CERN LHC; HELICITY; LIMITING VALUES; NEUTRINOS; NONLUMINOUS MATTER; TELESCOPES; UNDERGROUND; UNIVERSE