An Upper bound on the decay tau ---> mu gamma from Belle

We have performed a search for the lepton-flavor-violating decay tau -> mu gamma using a data sample of 86.3fb^{-1} accumulated by the Belle detector at KEK. No evidence for a signal is seen, and we set an upper limit for the branching fraction of B(tau -> mu gamma) < 3.1 x 10^{-7} at the 90% confidence level.

electron positron: colliding beams
electron positron: annihilation
tau: pair production
tau: radiative decay
flavor: violation
tau: branching ratio
upper limit
BELLE
experimental results
KEK TRISTAN Stor

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Figures(0)

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