Fermion Singlet Dark Matter in Scotogenic B-L Model

Borah, Debasish and Nanda, Dibyendu and Narendra, Nimmala and Sahu, Narendra (2021) Fermion Singlet Dark Matter in Scotogenic B-L Model. In: 23rd DAE-BRNS High Energy Physics Symposium, 2018, 10 December 2018 through 15 December 2018, Chennai.

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We study the possibility of right-handed neutrino Dark Matter (DM) in a gauged U(1 )B - L× Z2 extension of the Standard Model (SM) which is augmented by an additional scalar doublet, being odd under Z2 symmetry to explain the scotogenic radiative neutrino masses. Due to lepton interactions, the right-handed neutrino DM can have additional channels apart from the usual annihilations through scalar and gauge portals, which give rise to much more allowed mass of DM from relic abundance criteria. This enlarged parameter space is consistent with the neutrino oscillation and relic density of DM. Due to the possibility of the Z2 odd scalar doublet being the next to lightest stable particle (NLSP), one can have interesting signatures like displaced vertex or disappearing charged tracks provided that the mass splitting between DM and NLSP is small. © 2021, Springer Nature Singapore Pte Ltd.

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IITH Creators:
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Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Neutrino dark matter; Neutrino mass; Neutrino oscillations; Parameter spaces; Right handed; Right-handed neutrinos; The standard model
Subjects: Physics
Divisions: Department of Physics
Depositing User: . LibTrainee 2021
Date Deposited: 23 Aug 2022 10:29
Last Modified: 23 Aug 2022 10:29
URI: http://raiith.iith.ac.in/id/eprint/10272
Publisher URL: http://doi.org/10.1007/978-981-33-4408-2_41
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