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Measurement of the tau lifetime

  • Author(s): Amidei, D
  • Trilling, GH
  • Abrams, GS
  • Baden, AR
  • Boyer, J
  • Butler, F
  • Gidal, G
  • Gold, MK
  • Goldhaber, G
  • Golding, L
  • Haggerty, J
  • Herrup, D
  • Juricic, I
  • Kadyk, JA
  • Nelson, ME
  • Rowson, PC
  • Schellman, H
  • Schmidke, WB
  • Sheldon, PD
  • De La Vaissiere, C
  • Wood, DR
  • Jaros, JA
  • Barklow, T
  • Boyarski, AM
  • Burchat, P
  • Burke, DL
  • Dorfan, JM
  • Feldman, GJ
  • Gladney, L
  • Hanson, G
  • Hayes, K
  • Hollebeek, RJ
  • Innes, WR
  • Karlen, D
  • Klein, SR
  • Lankford, AJ
  • Larsen, RR
  • Leclaire, BW
  • Levi, ME
  • Lockyer, NS
  • Lüth, V
  • Matteuzzi, C
  • Ong, RA
  • Perl, ML
  • Richter, B
  • Riles, K
  • Yelton, JM
  • Schaad, T
  • et al.
Abstract

We have used a high-resolution drift chamber in the Mark II detector at the SLAC storage ring PEP to measure the lifetime of leptons produced in e+e- annihilations at 29 GeV. Based on the flight-path distribution of 807 three-prong decays, the lifetime is found to be (2.880.16 0.17)×10-13 sec, in agreement with expectations for e - universality. © 1988 The American Physical Society.

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