Higgs mediated lepton flavor violating tau decays $τ\to μγ$ and $τ\to μγγ$ in effective theories

J. I. Aranda; F. Ramírez--Zavaleta; J. J. Toscano; E. S. Tututi

doi:10.1103/physrevd.78.017302

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Higgs mediated lepton flavor violating tau decays $τ\to μγ$ and $τ\to μγγ$ in effective theories

J. I. Aranda·F. Ramírez--Zavaleta·J. J. Toscano·E. S. Tututi

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Abstract

The size of the branching ratios for the $τ\to μγ$ and $τ\to μγγ$ decays induced by a lepton flavor violating Higgs interaction $Hτμ$ is studied in the frame of effective field theories. The best constraint on the $Hτμ$ vertex, derived from the know measurement on the muon anomalous magnetic moment, is used to impose the upper bounds $Br(τ\to μγ)<2.5\times 10^{-10}$ and $Br(τ\to μγγ)<2.3\times 10^{-12}$, which are more stringent than current experimental limits on this class of transitions.

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J. I. Aranda, F. Ramírez--Zavaleta, J. J. Toscano, E. S. Tututi. 2008-04-16. Higgs mediated lepton flavor violating tau decays $τ\to μγ$ and $τ\to μγγ$ in effective theories. https://doi.org/10.1103/physrevd.78.017302

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