A search for the neutrinoless, lepton-flavor violating decay of the tau lepton into three charged leptons has been performed using 376 fb(-1) of data collected at an e(+)e(-) center-of-mass energy around 10.58 GeV with the BABAR detector at the SLAC PEP-II storage rings. In all six decay modes considered, the numbers of events found in data are compatible with the background expectations. Upper limits on the branching fractions are set in the range (4-8)x10(-8) at 90% confidence level.

Improved limits on the lepton-flavor violating decays τ-→l-l+l-

LUSIANI, Alberto
Writing – Original Draft Preparation
;
2007

Abstract

A search for the neutrinoless, lepton-flavor violating decay of the tau lepton into three charged leptons has been performed using 376 fb(-1) of data collected at an e(+)e(-) center-of-mass energy around 10.58 GeV with the BABAR detector at the SLAC PEP-II storage rings. In all six decay modes considered, the numbers of events found in data are compatible with the background expectations. Upper limits on the branching fractions are set in the range (4-8)x10(-8) at 90% confidence level.
2007
Settore FIS/01 - Fisica Sperimentale
Free energy; Germanium compounds; particle detectors; volume fraction; BABAR detector; charged leptons; lepton flavor; charged particles
   The University of Liverpool, Department of Physics Particle Physics Rolling Grant
   UK Research and Innovation
   STFC
   PP/E000444/1
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11384/5540
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