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Measurement of mass difference between τ− and τ+ and mass of τ-neutrino from three-prong τ-decays

✍ Scribed by Mikhail Chapkin

Book ID
114291077
Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
288 KB
Volume
66
Category
Article
ISSN
0920-5632

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Measurement of the τ-lepton mass and an
Measurement of the τ-lepton mass and an upper limit on the mass difference between τ+ and τ−
✍ M. Shapkin 📂 Article 📅 2006 🏛 Elsevier Science 🌐 English ⚖ 304 KB

The mass of the τ -lepton has been measured in the decay mode τ → 3πντ using a pseudomass technique. The preliminary result is 1776.71 ± 0.25(stat) ± 0.62(syst) MeV. The preliminary value of an upper limit on the relative mass difference between positive and negative τ leptons is |(M τ + -M τ -)|/Ma