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Title: Heavy right-handed neutrino dark matter and PeV neutrinos at IceCube

Abstract

We discuss a simple non-supersymmetric model based on the electroweak gauge group SU(2){sub L}×SU(2){sup ′}×U(1){sub B−L} where the lightest of the right-handed neutrinos, which are part of the leptonic doublet of SU(2){sup ′}, play the role of a long-lived unstable dark matter with mass in the multi-PeV 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 PeV 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.

Authors:
 [1];  [2];  [3];  [2];  [4];  [5];  [6]
  1. Max-Planck-Institut für Kernphysik,Saupfercheckweg 1, D-69117 Heidelberg (Germany)
  2. Astrophysics Science Division, NASA Goddard Space Flight Center,Greenbelt, MD 20771 (United States)
  3. Maryland Center for Fundamental Physics, Department of Physics, University of Maryland,College Park, MD 20742 (United States)
  4. (United States)
  5. Service de Physique Théorique, Université Libre de Bruxelles,Boulevard du Triomphe, CP225, 1050 Brussels (Belgium)
  6. (China)
Publication Date:
Sponsoring Org.:
SCOAP3, CERN, Geneva (Switzerland)
OSTI Identifier:
22572131
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2016; Journal Issue: 08; Other Information: PUBLISHER-ID: JCAP08(2016)034; OAI: oai:repo.scoap3.org:16827; cc-by Article funded by SCOAP3. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 License. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; FLAVOR MODEL; NEUTRINO DETECTION; NONLUMINOUS MATTER; PARTICLE DECAY; PEV RANGE; S CHANNEL; SU-2 GROUPS; TAU NEUTRINOS; TAU PARTICLES; U-1 GROUPS; WEINBERG-SALAM GAUGE MODEL; ICECUBE NEUTRINO DETECTOR; NEUTRINO DETECTORS

Citation Formats

Dev, P.S. Bhupal, Kazanas, D., Mohapatra, R.N., Teplitz, V.L., Department of Physics, Southern Methodist University,Dallas, TX 75205, Zhang, Yongchao, and School of Physics, Sun Yat-Sen University,Guangzhou 510275. Heavy right-handed neutrino dark matter and PeV neutrinos at IceCube. United States: N. p., 2016. Web. doi:10.1088/1475-7516/2016/08/034.
Dev, P.S. Bhupal, Kazanas, D., Mohapatra, R.N., Teplitz, V.L., Department of Physics, Southern Methodist University,Dallas, TX 75205, Zhang, Yongchao, & School of Physics, Sun Yat-Sen University,Guangzhou 510275. Heavy right-handed neutrino dark matter and PeV neutrinos at IceCube. United States. doi:10.1088/1475-7516/2016/08/034.
Dev, P.S. Bhupal, Kazanas, D., Mohapatra, R.N., Teplitz, V.L., Department of Physics, Southern Methodist University,Dallas, TX 75205, Zhang, Yongchao, and School of Physics, Sun Yat-Sen University,Guangzhou 510275. Wed . "Heavy right-handed neutrino dark matter and PeV neutrinos at IceCube". United States. doi:10.1088/1475-7516/2016/08/034.
@article{osti_22572131,
title = {Heavy right-handed neutrino dark matter and PeV neutrinos at IceCube},
author = {Dev, P.S. Bhupal and Kazanas, D. and Mohapatra, R.N. and Teplitz, V.L. and Department of Physics, Southern Methodist University,Dallas, TX 75205 and Zhang, Yongchao and School of Physics, Sun Yat-Sen University,Guangzhou 510275},
abstractNote = {We discuss a simple non-supersymmetric model based on the electroweak gauge group SU(2){sub L}×SU(2){sup ′}×U(1){sub B−L} where the lightest of the right-handed neutrinos, which are part of the leptonic doublet of SU(2){sup ′}, play the role of a long-lived unstable dark matter with mass in the multi-PeV 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 PeV 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.},
doi = {10.1088/1475-7516/2016/08/034},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 08,
volume = 2016,
place = {United States},
year = {Wed Aug 17 00:00:00 EDT 2016},
month = {Wed Aug 17 00:00:00 EDT 2016}
}