• Universality in weak interactions—The cabibbo suppression

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      https://www.ias.ac.in/article/fulltext/pram/009/01/0027-0040

    • Keywords

       

      Universality; Cabibbo angle; SU3-gauge model; ultraweak interactions

    • Abstract

       

      An SU3 gauge model of weak interactions, which generates the Cabibbo suppression spontaneously and consistently, is presented. Out of the eight currents, a triplet couples to relatively light gauge bosons and satisfies the commutation relations of the SU2-universality algebra of Gell-Mann. The other five couple to necessarily very massive gauge bosons. The leptons have a realistic mass spectrum and the (bare) quarks are massless. The theory as it stands does not encompass charm and cannot suppress strangeness changing neutral currents; both these deficiencies require a larger gauge group for their correction.

    • Author Affiliations

       

      P P Divakaran1

      1. Tata Institute of Fundamental Research, Bombay - 400005
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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