A measurement of the τ mass and the first CPT test with τ leptons

OPAL Collaboration

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

We measure the mass of the τ to be 1775.1 ± 1.6(m(cn/stat.)) ± 1.0(m(cn/sys.)) MeV using τ from Z0 decays. To test CPT invariance we compare the masses of the positively and negatively charged τ. The relative mass difference is found to be smaller than 3.0 × 10-3 at the 90% confidence level.

Original languageEnglish
Pages (from-to)23-31
Number of pages9
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume492
Issue number1-2
DOIs
Publication statusPublished - Oct 26 2000

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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