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

Collaboration
May 4, 2007
15 pages
Published in:
  • Phys.Lett.B 666 (2008) 16-22
e-Print:
Report number:
  • BELLE-PREPRINT-2007-6,
  • KEK-PREPRINT-2006-69
Experiments:

Citations per year

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Abstract: (Elsevier)
We report on a search for the lepton flavor violating τ−→μ−γ and τ−→e−γ decays based on 535 fb −1 of data accumulated at the Belle experiment. No signal is found and we set 90% confidence level upper limits on the branching ratios B(τ−→μ−γ)<4.5×10−8 and B(τ−→e−γ)<1.2×10−7 .
Note:
  • 15 pages, 13 figures, the exponent of the upper limit for the tau -> e gamma in the abstract is corrected
  • 13.35.Dx
  • 11.30.Fs
  • 14.60.Fg
  • Decays of taus
  • Lepton number
  • Taus
  • electron positron: colliding beams
  • electron positron: annihilation
  • tau: pair production
  • tau-: radiative decay
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