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Heavy Right-Handed Neutrino Dark Matter and PeV Neutrinos at IceCubeWe discuss a simple non-supersymmetric model based on the electroweak gauge group SU(2) (sub L) times SU(2) prime times U(1) (Sub B-L) where the lightest of the right-handed neutrinos, which are part of the leptonic doublet of SU(2) prime, play the role of a long-lived unstable dark matter with mass in the multi-Peta-electronvolt range. We use a resonant s-channel annihilation to obtain the correct thermal relic density and relax the unitarity bound on dark matter mass. In this model, there exists a 3-body dark matter decay mode producing tau leptons and neutrinos, which could be the source for the Peta-electronvolt cascade events observed in the IceCube experiment. The model can be tested with more precise flavor information of the highest-energy neutrino events in future data.
Document ID
20170006209
Document Type
Reprint (Version printed in journal)
Authors
Bhupal Dev, P. S. (Max-Planck-Inst. fuer Kernphysik Heidelberg, Germany)
Kazanas, D. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Mohapatra, R. N. (Maryland Univ. College Park, MD, United States)
Teplitz, V. L. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Zhang, Yongchao (Free Univ. Brussels, Belgium)
Date Acquired
July 7, 2017
Publication Date
August 17, 2016
Publication Information
Publication: Journal of Cosmology and Astroparticle Physics
Volume: 2016
Issue: 8
ISSN: 1475-7508
Subject Category
Physics of Elementary Particles and Fields
Report/Patent Number
GSFC-E-DAA-TN44093
Funding Number(s)
CONTRACT_GRANT: DFG-RO-2516-5-1
CONTRACT_GRANT: China NSFC-11375277
CONTRACT_GRANT: NSF PHY-1315155
CONTRACT_GRANT: Belgian IAP-VII-37)
Distribution Limits
Public
Copyright
Other