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Lepton flavor violating τ decays in TeV scale type I see-saw and Higgs triplet models

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Abstract

The lepton flavour violating (LFV) τ decays τ → (e, μ)γ and τ → 3μ are investigated in the frameworks of the TeV scale type I see-saw and Higgs Triplet (or type II see-saw) models. Predictions for the rates of these processes are obtained. The implications of the existing stringent experimental upper bounds on the μ → e + γ and μ → 3e decay branching ratios for the predictions of the τ → (e, μ)γ and τ → 3μ decay rates are studied in detail. The possibilities to observe the indicated LFV τ decays in present and future experiments are analysed.

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Authors and Affiliations

  1. SISSA and INFN-Sezione di Trieste, Via Bonomea 265, 34136, Trieste, Italy

    D. N. Dinh & S. T. Petcov

  2. Institute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan, Hanoi, Vietnam

    D. N. Dinh

  3. Kavli IPMU, University of Tokyo (WPI), Tokyo, Japan

    S. T. Petcov

  4. Institute of Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, 1784, Sofia, Bulgaria

    S. T. Petcov

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Dinh, D.N., Petcov, S.T. Lepton flavor violating τ decays in TeV scale type I see-saw and Higgs triplet models. J. High Energ. Phys. 2013, 86 (2013). https://doi.org/10.1007/JHEP09(2013)086

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