Lepton Flavor Violation in tau decays at BaBar

TL;DR

This paper reports on searches for lepton flavor violating tau decays at BaBar, setting upper limits on branching ratios around 10^{-7}, contributing to the understanding of physics beyond the Standard Model.

Contribution

First experimental search for multiple lepton flavor violating tau decays at BaBar, establishing new upper limits on their branching ratios.

Findings

Upper limits on tau decay branching ratios at 10^{-7} level.

No evidence of lepton flavor violation observed.

Results constrain new physics models predicting such decays.

Abstract

Searches for lepton flavor violating tau -> l gamma, tau -> lll and tau -> lhh decays at the BaBar experiment are presented. Upper limits on the branching ratios are obtained at the level of 10^{-7} at 90% confidence level.