Publication

Measurement of the τ lepton mass and an upper limit on the mass difference between τ+ and τ-

Olivier Schneider, Aurelio Bay
2007
Journal Articles

Abstract

The mass of the τ lepton has been measured in the decay mode τ→3πντ using a pseudomass technique. The result obtained from 414fb-1 of data collected with the Belle detector is Mτ=[1776.61±0. 13(stat)±0.35(sys)]MeV/c2. The upper limit on the relative mass difference between positive and negative τ leptons is |Mτ+-Mτ-|/ Mτ

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Measurement of the τ lepton mass and an upper limit on the mass difference between τ+ and τ-

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