Low energy data and a model of flavor mixing

Ehab Malkawi, C. P. Yuan

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We consider a model in which the third family fermions are subjected to an SU(2) interaction different from the first two family fermions. Constrained by the Z-pole data, the heavy gauge boson mass is bounded from below to be about 1.7 TeV at the 2σ level. In this model, the flavor mixing between τ and μ can be so large that Br(τ → μνμντ)/Br(τ → eνeντ) and Br(τ → μμμ) provide a better constraint than the LEP/SLC data in some region of parameter space. Furthermore, flavor-changing neutral currents are unavoidable in the quark sector of the model. Significant effects to the B0-B0 mixing and the rare decays of the K and B mesons, such as K± → π±νν̄, b → sνv̄, Bs → τ+τ-, μ+μ- and Bs,d → μ±μ±, are expected.

Original languageEnglish
Pages (from-to)1487-1496
Number of pages10
JournalModern Physics Letters A
Issue number22
Publication statusPublished - Jul 20 1999
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Astronomy and Astrophysics
  • General Physics and Astronomy


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