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Updated measurement of the $\tau$ lepton lifetime (2005)

Abstract
A new measurement of the mean lifetime of the tau lepton is presented. Three different analysis methods are applied to a sample of 90000 tau pairs, collected in 1993 and 1994 with the ALEPH detector at LEP. The average of this measurement and those previously published by ALEPH is tau_tau = 290.1 +- 1.5 +- 1.1 fs.

Publication details
Download http://hal.in2p3.fr/in2p3-00003522/en/
Publisher HAL - CCSD
Repository INRIA a CCSD electronic archive server based on P.A.O.L (France)
Keywords Physics/High Energy Physics - Experiment
Type peer-reviewed article
Relation http://hal.inria.fr/docs/00/00/71/25/PDF/democrite-00003522.pdf