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arXiv · 1912.10487

Exploring Dark Matter, Neutrino mass and flavour anomalies in L_{\mu}-L_{\tau} model

Rukmani Mohanta·Shivaramakrishna Singirala·Suchismita Sahoo
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Abstract

We investigate Majorana dark matter in a new variant of $U(1)_{L_{\mu}-L_{\tau}}$ gauge extension of Standard Model, containing three additional neutral fermions $N_{e}, N_{\mu}, N_{\tau}$, along with a $(\bar{3},1,1/3)$ scalar Leptoquark (SLQ) and an inert doublet, to study the phenomenology of dark matter, neutrino mass generation and flavour anomalies on a single platform. The lightest mass eigenstate of the $N_{\mu}, N_{\tau}$ neutral fermions plays the role of dark matter. We compute the WIMP-nucleon cross section in leptoquark portal and the relic density mediated by inert doublet components, leptoquark and the new $Z^{\prime}$ boson. We constrain the parameter space consistent with Planck limit on relic density, PICO-60 and LUX bounds on spin-dependent direct detection cross section. We also discuss about the neutrino mass generation at one-loop level and the viable parameter region to explain current neutrino oscillation data. The $Z^\prime$ gauge boson of extended $U(1)$ symmetry and the SLQ play an important role in settling the known issues of flavor sector.

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Rukmani Mohanta, Shivaramakrishna Singirala, Suchismita Sahoo. 2019-12-22. Exploring Dark Matter, Neutrino mass and flavour anomalies in L_{\mu}-L_{\tau} model. https://doi.org/10.1088/1742-6596/1468/1/012030

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