September 27, 2021 to October 1, 2021
Indiana University
America/Indiana/Indianapolis timezone

Measurement of τ lepton mass at BESIII

Sep 27, 2021, 9:05 AM
Virtual (Indiana University)


Indiana University

Oral contribution Tau2021 Abstracts Session 1: Properties of the tau lepton


Tao Luo (Fudan University)


τ lepton is a fundamental particle in the standard model, and its mass is a very sensitive quantity in testing the lepton-universality.
BESIII gave the most precise τ mass value in a single measurement in 2014, but the accuracy is still much lower than those of electron and muon.
In order to improve the accuracy of τ mass measurement, more than 130 pb-1 τ mass scan data were collected in April 2018, and the uncertainty of mτis expected to be reduced as the level of 100 keV.

What is your topic? Precision SM tests

Primary author

Tao Luo (Fudan University)

Presentation materials