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.
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References
Adler S L 1965Phys. Rev. Lett. 14 1051
Cabibbo N 1963Phys. Rev. Lett. 10 531
Divakaran P P 1975Leptons and their Interactions TIFR preprint, to be published in the Proceedings of the 41st Annual Meeting of the Indian Academy of Sciences
Gell-Mann M 1964Physics 1 63
Georgi H and Politzer H 1976Phys. Rev. D14 1829
Glashow S, Iliopoulos J and Maiani L 1970Phys. Rev. D2 1285
Kobayashi M and Maskawa T 1973Prog. Theor. Phys. 49 652
Salam A 1968Weak and Electromagnetic Interactions in Elementary Particle Theory ed. Svartholm N (Almqvist & Wiksell, Stockholm)
Weinberg S 1967Phys. Rev. Lett. 19 1264
Weinberg S 1972Phys. Rev. D5 1412
Weinberg S 1976Phys. Rev. Lett. 37 657
Weisberger W I 1965Phys. Rev. Lett. 14 1047
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Divakaran, P.P. Universality in weak interactions—The cabibbo suppression. Pramana - J Phys 9, 27–40 (1977). https://doi.org/10.1007/BF02845928
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DOI: https://doi.org/10.1007/BF02845928