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Search for Lepton-Flavor and Lepton-Number Violation in the Decay {tau}{sup -}{yields}l{sup {+-}}h{sup {+-}}h{sup '-}

Journal Article · · Physical Review Letters
; ; ; ; ; ; ; ;  [1];  [2]; ; ;  [3]; ; ; ; ;  [4]; ;  [5]
  1. Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux (France)
  2. IFAE, Universitat Autonoma de Barcelona, E-08193 Bellaterra, Barcelona (Spain)
  3. Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy)
  4. Institute of High Energy Physics, Beijing 100039 (China)
  5. Institute of Physics, University of Bergen, N-5007 Bergen (Norway); and others
A search for lepton-flavor and lepton-number violation in the decay of the tau lepton into one charged lepton and two charged hadrons is performed using 221.4 fb{sup -1} of data collected at an e{sup +}e{sup -} center-of-mass energy of 10.58 GeV with the BABAR detector at the SLAC PEP-II storage ring. In all 14 decay modes considered, the observed data are compatible with background expectations, and upper limits are set in the range B({tau}{yields}lhh{sup '})<(0.7-4.8)x10{sup -7} at 90% confidence level.
OSTI ID:
20699530
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 19 Vol. 95; ISSN 0031-9007; ISSN PRLTAO
Country of Publication:
United States
Language:
English