Lepton Flavour Violation in Hadron Decays of the Tau Lepton within the Littlest Higgs Model with T-parity

Abstract

We first study the hadronic lepton flavor violating tau decays within the littlest Higgs model with T-parity (including one or two pseudoscalars, or a vector resonance). We consider the case where only T-odd particles and partner fermions contribute, and also its extension including Majorana neutrinos coming from an inverse seesaw. In both cases our mean values lie only one order of magnitude below current upper limits, strengthening the case of searching for these decays in the quest for new physics.

arXiv comment36 pages, 15 figures, 5 tables. Improved presentation and more concise phenomenological analysis. Version accepted for publication in JHEP

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Cited by in corpus (2)

• Search for lepton-flavor-violating $\tau$ decays into a lepton and a vector meson using the full Belle data sample
• Phenomenological implications of the new Littlest Higgs model with T-parity