Measurement of radiative tau decays at BaBar

TL;DR

This paper reports on the measurement of radiative tau decays involving leptons and pions using a large dataset from the BaBar experiment, providing insights into tau decay processes.

Contribution

First measurement of radiative tau decays at BaBar, analyzing multiple decay channels with extensive data to improve understanding of tau lepton properties.

Findings

Measured branching fractions for tau -> l gamma nu nu and tau -> pi gamma nu decays.

Enhanced precision in tau radiative decay parameters.

Provided data to test Standard Model predictions for tau decays.

Abstract

We present a study for the measurement of of radiative decays, tau -> l gamma nu nu, l=e, mu, and tau -> pi gamma nu using 500 fb-1 of electron-positron annihilations recorded by the BaBar detector at the PEP-II asymmetric B-factory.