Flavor Unification, Decay and Decay Within the Six Quark Six Lepton {Weinberg-Salam} Model
Sep, 197838 pages
Published in:
- Phys.Rev.D 19 (1979) 317-329
Report number:
- COO-2232B-162
Citations per year
Abstract: (APS)
The leptons νe, e, νμ, μ, ντ, τ, and analogously the quarks u, d, c, s, t, b, are unified within the Weinberg-Salam SU2×U1 gauge model without enlarging the gauge group. The result is a theory in which the familiar leptons, quarks, and gauge bosons, plus some extra Higgs bosons necessary for unification, all carry a new multiplicatively conserved quantum number π=±1. The most striking results of this unification are (1) π conservation forbids μ→eγ but allows the Higgs-boson-mediated decays τ→lγ (l=e or μ) and τ→μee or eμμ, at a calculable rate with a calculable lower limit; (2) for quarks, two of the three Cabibbo angles must be zero, so that the b quark (assumed lighter than t) decays only via Higgs-boson exchange, always semileptonically and always with lepton-number violation, e.g., b→de+μ−. This singular prediction will confirm or exclude the model as soon as b-flavored mesons are discovered. These and other phenomenological consequences of this unification are explained, and rates are estimated.- GAUGE FIELD THEORY: SU(2) X U(1)
- UNIFIED FIELD THEORY
- WEAK INTERACTION: CABIBBO ANGLE
- ELECTROMAGNETIC INTERACTION
- FIELD THEORETICAL MODEL: WEINBERG
- LEPTON: SEXTET
- QUARK: SEXTET
- SPONTANEOUS SYMMETRY BREAKING
- FIELD THEORY: HIGGS PARTICLE
- SYMMETRY: S(3)
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