Search for Lepton-Flavor Violation in the Decayτ−→ℓ−ℓ+ℓ−

2003/12/09 by The BABAR Collaboration, R. Barate, B. Aubert +98 · 8 citations
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ex

paper · pdf · doi:10.1103/physrevlett.92.121801

published as Phys.Rev.Lett.92:121801,2004 · 7 pages, 2 postscript figures, submitted to PRL

arxiv created 2003/12/09 · openalex publication_date 2004/03/26 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04

Abstract

A search for the lepton-flavor-violating decay of the tau into three charged leptons has been performed using 91.5 fb^\ensuremath-1 of data collected at an e⁺e^\ensuremath-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)\ifmmode×\else\texttimes\fi10^\ensuremath-7 at 90% confidence level.

Citations

• Direct Evidence for Neutrino Flavor Transformation from Neutral-Current Interactions in the Sudbury Neutrino Observatory

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