Constraints on Majorana dark matter from a fourth lepton family

Journal Article · Sat Feb 01 00:00:00 EST 2014 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2014/02/050· OSTI ID:22370671

Hapola, Tuomas ^[1]; Järvinen, Matti ^[2]; Kouvaris, Chris; Panci, Paolo; Virkajärvi, Jussi ^[3]

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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)

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.

• OSTI ID: 22370671
• Journal Information: Journal of Cosmology and Astroparticle Physics, Vol. 2014, Issue 02; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ANNIHILATION
ASTROPHYSICS
CERN LHC
HELICITY
LIMITING VALUES
NEUTRINOS
NONLUMINOUS MATTER
TELESCOPES
UNDERGROUND
UNIVERSE