Search for Lepton Flavour Violation in the Decay τ±→μ±γ

2004/12/01 by J. M. Roney · 1 citation
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ex

paper · pdf · doi:10.1016/j.nuclphysbps.2005.02.021

published as Nucl.Phys.Proc.Suppl.144:155-160,2005 · 7 pages, 3 encapsulated postscript figures, uses espcrc2.sty

arxiv created 2004/12/01 · openalex publication_date 2005/03/22 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

A search for the lepton flavour violating decay tau -> mu gamma has been performed using 221.4/fb of data collected at an e+e- centre-of-mass energy of 10.58 GeV with the BABAR detector at the PEP-II storage ring. The search has an efficiency of (7.45+/-0.65)% for an expected background level of 6.2+/-0.5 events. In the final sample 4 candidate events are selected. As there is no evidence for a signal in this data, for this preliminary result we set an upper limit of BR(tau -> mu gamma) < 9 x 10^-8 at 90%CL using the method of Feldman and Cousins.

Citations

• Review of particle properties
• Review of Particle Physics

Cited by

• The effect of the location of the new Higgs doublet on the radiative lepton flavor violating decays in the split fermion scenario