Lepton flavor violation in tau decays

G. Cvetič, C. Dib, C. S. Kim, J. D. Kim

Research output: Contribution to journalArticlepeer-review


We study lepton flavor violation (LFV) in tau decays induced by heavy Majorana neutrinos within two models: (I) the standard model with additional right-handed heavy Majorana neutrinos, i.e., a typical seesaw-type model; (II) the standard model with left-handed and right-handed neutral singlets, which are inspired by certain scenarios of (Formula presented) models and heterotic superstring models with (Formula presented) symmetry. We calculate various LFV branching ratios and a T-odd asymmetry. The seesaw model I predicts very small branching ratios for LFV processes in most of the parameter space, although in a very restricted parameter region it can reach maximal branching ratios (Formula presented) and (Formula presented) In contrast, model II may show branching ratios (Formula presented) and (Formula presented) over a sizable region of the parameter space, large enough to be tested by experiments in the near future.

Original languageEnglish
Pages (from-to)9
Number of pages1
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number3
Publication statusPublished - 2002

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)


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