(\omega, \phi) P^- decays of tau leptons

TL;DR

This paper analyzes tau lepton decays into omega or phi mesons plus a pion or kaon, using a phenomenological model with meson dominance and SU(3) symmetry, predicting branching fractions consistent with recent experimental data.

Contribution

It provides new theoretical predictions for tau decay branching ratios involving omega and phi mesons, aligning with recent experimental results.

Findings

Predicted branching fractions match BABAR and BELLE measurements.

Model assumes meson dominance and SU(3) flavor symmetry.

Results support the validity of the phenomenological approach.

Abstract

The \tau -> (\omega, \phi)P^-\nu decays, where P^-=\pi^-, K^-, are considered within a phenomenological model with dominance of meson intermediate states. We assume SU(3) flavor symmetry to fix some of the unknown strong interaction couplings. Our predictions for the \tau -> \phi (\pi^-, K^-)\nu branching fractions are in good agreement with recent measurements of the BABAR and BELLE Collaborations.