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Search for lepton-flavor violation in the decay tau(-)-> l(-)l(+)l-

Aubert, B; Barate, R; Boutigny, D; Couderc, F; Gaillard, JM; Hicheur, A; Karyotakis, Y; ... BABAR Collaboration, .; + view all (2004) Search for lepton-flavor violation in the decay tau(-)-> l(-)l(+)l-. PHYS REV LETT , 92 (12) , Article 121801. 10.1103/PhysRevLett.92.121801. Green open access

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Abstract

A search for the lepton-flavor-violating decay of the tau into three charged leptons has been performed using 91.5 fb(-1) of data collected at an e(+)e(-)center-of-mass energy around 10.58 GeV with the BABAR detector at the SLAC storage ring PEP-II. 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 (1-3)x10(-7) at 90% confidence level.

Type: Article
Title: Search for lepton-flavor violation in the decay tau(-)-> l(-)l(+)l-
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.92.121801
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.92.121801
Language: English
Additional information: The American Physical Society
Keywords: TAU-DECAYS, LIMIT, MASS
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/1303652
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