Measurement of the tau lepton lifetime

Decamp, D. and Finch, Alexander (1992) Measurement of the tau lepton lifetime. Physics Letters B, 279 (3-4). pp. 411-421. ISSN 0370-2693

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Abstract

The mean lifetime of the τ lepton is measured from a sample of Z→τ+τ− decays observed with the ALEPH detector at LEP in 1989 and 1990. A new technique is applied to the events containing two one-prong decays: the lifetime is measured from the observed correlation between the impact parameters and azimuthal angles of the two charged tracks. The lifetime is also determined from measured vertex displacements for three-prong decays and track impact parameters for one-prong decays. The combined results is ττ=291 ± 13 (stat) ±6 (syst.) fs.

Item Type:
Journal Article
Journal or Publication Title:
Physics Letters B
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
ID Code:
63781
Deposited By:
Deposited On:
07 May 2013 14:40
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 08:25