Radiative Corrections to the decay tau -> pi (K) nu_tau

Details Radiative Corrections to the decay tau -> pi (K) nu_tau Radiative Corrections to the decay tau -> pi (K) nu_tau

1993-07-30

arxiv.org/abs/hep-ph/9307372v1

Phys.Lett. B316 (1993) 403-406

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, Latex, Karlsruhe Univ. Preprint TTP 93-25

Scientific paper

10.1016/0370-2693(93)90345-I

We have calculated the O(alpha) radiative corrections to the tau decay tau -> pi (K) nu, taking into account both the point meson contribution and the structure dependent radiation. We find for the ratio Gamma(tau -> pi nu (gamma)) / Gamma(pi -> mu nu (gamma)) a radiative correction of + 1.2% and for Gamma(tau -> K nu (gamma)) / Gamma(K -> mu nu (gamma)) one of + 2.0%. We compare our results with an earlier estimation and with experimental data.

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