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arXiv · hep-ex/9710026

Updated measurement of the tau lepton lifetime

The ALEPH Collaboration
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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.

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The ALEPH Collaboration. 1997-10-23. Updated measurement of the tau lepton lifetime. https://doi.org/10.1016/s0370-2693(97)01116-7

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