Lepton flavor violation in τ decays

Chuan Hung Chen, Chao Qiang Geng

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)


We study the lepton flavor violation (LFV) in tau decays in the framework of the supersymmetric seesaw mechanism with nonholomorphic terms for the lepton sector at a large tan β. In particular, we analyze two new decay modes τ→ f0(980) and τ→ K+K- arising from the scalar boson exchanges contrast to τ→ η(′) from the pseudoscalar ones. We find that the decay branching ratios of the two new modes could be not only as large as the current upper limits of O(10-7), but also larger than those of τ→ η(′). Experimental searches for the two modes are important for the LFV induced by the scalar-mediated mechanism. In addition, we show that the decay branching ratios of τ→ μ+μ- are related to those of τ→ η and τ→ f0(980).

Original languageEnglish
Article number035010
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number3
Publication statusPublished - 2006

All Science Journal Classification (ASJC) codes

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


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