Neutrino mass generation with large $SU(2{)}_L$ multiplets under local $U(1{)}_{L_{\mu }-L_{\tau }}$ symmetry

Abstract

We propose a model of neutrino mass matrix with large $SU(2)$ multiplets and gauged $U(1{)}_{L_{\mu }-L_{\tau }}$ symmetry, in which we introduce $SU(2)$ quartet scalar and quintet fermions with nonzero $L_{\mu }-L_{\tau }$ charge. Then we investigate the neutrino mass structure and explore phenomenologies of large multiplet fields at the collider, particularly, focussing on doubly- and singly- charged exotic leptons from the quintet.

14 pages, 2 tables, 3 figures; accepted version for publication in Physics Letters B

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• Dark matter and $B$-meson anomalies in a flavor dependent gauge symmetry
• Neutrino Masses, Leptonic Flavor Mixing and Muon $(g-2)$ in the Seesaw Model with the $U(1{)}_{L_{\mu }^{}-L_{\tau }^{}}^{}$ Gauge Symmetry
• Integrating out heavy scalars with modified EOMs: matching computation of dimension-eight SMEFT coefficients
• Low scale seesaw models for low scale $U(1{)}_{L_{\mu }-L_{\tau }}$ symmetry
• Generalised $\mu$-$\tau$ symmetries and calculable gauge kinetic and mass mixing in $U(1{)}_{L_{\mu }-L_{\tau }}$ models
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• Low-Temperature Enhancement of Semi-annihilation and the AMS-02 Positron Anomaly
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• $(g-2{)}_{e,\mu }$ and strongly interacting dark matter with collider implications
• Effective field theory versus UV-complete model: vector boson scattering as a case study
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• An inverse seesaw model with natural hierarchy at TeV scale
• Inverse seesaw model with large $SU(2{)}_L$ multiplets and natural mass hierarchy
• A multi-charged particle model with local $U(1{)}_{\mu -\tau }$ to explain muon $g-2$, flavor physics, and possible collider signature
• One-loop neutrino mass model with $SU(2{)}_L$ multiplet fields
• Neutrino observables in gauged $U(1{)}_{L_{\alpha }-L_{\beta }}$ models with two Higgs doublet and one singlet scalars