A New Search for tau -> mu gamma and tau -> e gamma Decays at Belle

2006/09/26 by K. Abe, The Belle Collaboration, Abe, K.
Physics and Astronomy · #FOS: Physical sciences #Gamma-ray bursts and supernovae #High Energy Physics - Experiment (hep-ex) #Nuclear physics research studies #Particle physics theoretical and experimental studies

paper · pdf · doi:10.48550/arxiv.hep-ex/0609049

openalex publication_date 2006/09/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We update our search for the lepton flavor violating tau -> mu gamma and tau -> e gamma decays based on 535/fb of data accumulated at the Belle experiment. No signal is found and we set preliminary 90% confidence level upper limits: B(tau -> mu gamma) < 4.5x 10^-8 and B(tau -> e gamma) < 1.2x 10^-7.

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