Tau Radiative Decays in the Light Front Quark Model

We study the decays of τ → ντPγ (P = π , K) in the light front quark model. We calculate the form factors and use them to evaluate the decay widths. We find that, in the standard model, the decay widths are 1.62 × 10 (3.86 × 10) Γτ−→ντπ− and 1.91 × 10 (5.38 × 10) Γτ−→ντK− with the cuts of Eγ = 50 (400) MeV and t0 = 800 (1200) MeV for τ → ντπγ and τ → ντKγ, respectively. We also show that with including the radiative decay widths, the experimental rate for τ → ντP can be explained.