A modular A 4 symmetric scotogenic model for neutrino mass and dark matter

Behera, Mitesh Kumar and Singirala, Shivaramakrishna and Mishra, Subhasmita and et al, . (2022) A modular A 4 symmetric scotogenic model for neutrino mass and dark matter. Journal of Physics G: Nuclear and Particle Physics, 49 (3). ISSN 0954-3899

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Abstract

Modular symmetries have been impeccable in the neutrino and quark sectors. This motivated us to propose a variant of the scotogenic model based on modular A 4 symmetry and realize the neutrino mass generation at the one-loop level through a radiative mechanism. Alongside, we discuss the lepton flavour violating processes μ → e 3, μ → 3e and μ-e conversion in the nucleus. The lightest Dirac fermion turns out to be a potential dark matter candidate, made stable by the suitable assignment of modular weights. The relic density of this has been computed with annihilations mediated by inert scalars and the new U(1) gauge boson. The LEP-II and ATLAS dilepton constraints on the new gauge parameters are suitably considered to show the consistent parameter region. © 2022 IOP Publishing Ltd.

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IITH Creators:

IITH Creators	ORCiD

Item Type:

Article

Additional Information:

MKB and SM want to acknowledge DST for its financial help. RM and SS would like to thank the University of Hyderabad for financial support through the IoE project Grant IoE/RC1/RC1-20-012. RM acknowledges the support from SERB, Government of India, through Grant No. EMR/2017/001448. We thank Professor H Okada for the very useful suggestion.

Uncontrolled Keywords:

neutrino and quark, scotogenic model, neutrino mass generation , μ → e 3, μ → 3e and μ-e conversion.

Subjects:

Others > Applied sciences
Physics

Divisions:

Department of Physics

Depositing User:

. LibTrainee 2021

Date Deposited:

20 Jul 2022 12:11

Last Modified:

20 Jul 2022 12:11