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arXiv · 2409.15218

Leptonic probes of Alternative Left-Right Symmetric Models

Mariana Frank·Benjamin Fuks·Sumit K. Garg·Chayan Majumdar·Poulose Poulose·Supriya Senapati
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Abstract

We explore constraints on the parameter space of the alternative left-right model originating from the leptonic sector. Our analyses focuses on both lepton-flavour-conserving observables, particularly the anomalous magnetic moment of the muon, and lepton-flavour-violating processes like $\mu \to e \gamma $ decay and $\mu-e$ conversions in nuclei. While contributions to the anomalous magnetic moment fall below the measured values at 2$\sigma$, current and future experimental sensitivities to flavour-violating branching rations of the Standard Model leptons are expected to impose lower bounds on the mass of the peculiar $SU(2)_R$ gauge boson of the model. This provides complementary constraints relative to existing limits, which are indirect and derived from collider bounds on the mass of the associated neutral gauge boson $Z^\prime$.

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Mariana Frank, Benjamin Fuks, Sumit K. Garg, Chayan Majumdar, Poulose Poulose, Supriya Senapati. 2024-09-23. Leptonic probes of Alternative Left-Right Symmetric Models. https://doi.org/10.1103/physrevd.111.095009

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