# New Results on Tau Lepton

Source: [New Results on Tau Lepton](<https://www.sota2.com/research/paper/68fa2ab51e209131ce840124>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T13:43:54.483Z

Authors: K.K. Gan

Published: 2003-11-22T00:22:19.000Z

## Abstract

This is a review of new results on the Tau lepton. The lifetime has been measured with improved precision, allowing the test of lepton universality to 0.2% level. There are several new measurements of the branching ratios for the hadronic decays, including much improved measurements for the Cabibbo-suppressed decays. All results are consistent with the Standard Model expectations.

## Recorded benchmark results

A research result applies to its stated dataset, split, metric and evaluation configuration. Compare like-for-like settings, preserve the metric's unit and direction, and distinguish paper-reported results from independent reproduction. The best result recorded here is not a claim of exhaustive, current global coverage.

## Original sources and implementation

[Original paper](<https://arxiv.org/abs/hep-ex/0311047>)

[PDF](<https://arxiv.org/pdf/hep-ex/0311047.pdf>)