A new measurement of the mean lifetime of the tau lepton is presented. Three different analysis methods are applied to a sample of 90 000 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 +/- 1.1fs. (C) 1997 Elsevier Science B.V.

Updated measurement of the tau lepton lifetime

SELVAGGI, Giovanna;DE PALMA, Mauro;NUZZO, Salvatore Vitale
1997-01-01

Abstract

A new measurement of the mean lifetime of the tau lepton is presented. Three different analysis methods are applied to a sample of 90 000 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 +/- 1.1fs. (C) 1997 Elsevier Science B.V.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11586/28157
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