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

Details A measurement of the tau mass and the first CPT test with tau leptons A measurement of the tau mass and the first CPT test with tau leptons

2000-05-04

arxiv.org/abs/hep-ex/0005009v1

Phys.Lett.B492:23-31,2000

Physics

High Energy Physics

High Energy Physics - Experiment

10 pages, 4 figures, Submitted to Phys. Letts. B

Scientific paper

10.1016/S0370-2693(00)01022-4

We measure the mass of the tau lepton to be 1775.1+-1.6(stat)+-1.0(syst.) MeV
using tau pairs from Z0 decays. To test CPT invariance we compare the masses of
the positively and negatively charged tau leptons. The relative mass difference
is found to be smaller than 3.0 10^-3 at the 90% confidence level.

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