Horizontal interaction and weak mixing angles

F. Wilczek, A. Zee

Research output: Contribution to journalArticlepeer-review

273 Scopus citations


The formula tan2Cmdms is derived from a continuous symmetry. Cabibbo universality is guaranteed in a natural way. All weak mixing angles are determined in terms of quark masses. The b quark is predicted to decay mainly to the u quark, and the lifetime of the associated mesons is 10-10-10-11 sec. We argue that this additional symmetry is (essentially) the only one which can be added to the standard SUc(3)SU(2)U(1) model without generating anomalies.

Original languageEnglish (US)
Pages (from-to)421-425
Number of pages5
JournalPhysical Review Letters
Issue number7
StatePublished - 1979
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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