Dark matter assisted Dirac leptogenesis and neutrino mass

Narendra, Nimmala and Sahoo, Nirakar and Sahu, Narendra (2018) Dark matter assisted Dirac leptogenesis and neutrino mass. Nuclear Physics B, 936. pp. 76-90. ISSN 0550-3213

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Abstract

We propose an extension of the standard model with U(1)B–L×Z2 symmetry. In this model by assuming that the neutrinos are Dirac (i.e. B–L is an exact symmetry), we found a simultaneous solution for non zero neutrino masses and dark matter content of the universe. The observed baryon asymmetry of the universe is also explained using Dirac Leptogenesis, which is assisted by a dark sector, gauged under a U(1)D symmetry. The latter symmetry of the dark sector is broken at a TeV scale and thereby giving mass to a neutral gauge boson ZD. The standard model Z-boson mixes with the gauge boson ZD at one loop level and paves a way to detect the dark matter through spin independent elastic scattering at terrestrial laboratories.

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IITH Creators:
IITH CreatorsORCiD
Sahu, NarendraUNSPECIFIED
Item Type: Article
Subjects: Physics
Divisions: Department of Physics
Depositing User: Team Library
Date Deposited: 09 Oct 2018 09:18
Last Modified: 09 Oct 2018 09:18
URI: http://raiith.iith.ac.in/id/eprint/4473
Publisher URL: http://doi.org/10.1016/j.nuclphysb.2018.09.007
OA policy: http://www.sherpa.ac.uk/romeo/issn/0550-3213/
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