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Title: Possible SU(4)/sub c/ x SU(3)/sub f/ x U(1) model

Abstract

An anomaly-free model of strong and electroweak interactions involving leptons and quarks in the SU(4)/sub c/ x SU(3)/sub f/ x U(1) gauge theory is constructed. After spontaneous symmetry breaking, it reduces to quantum chromodynamics for strong interactions and a broken SU(3) x U(1) model for electroweak interactions. As a limiting case it gives the same results as those of the Weinberg-Salam model in the low-energy region. The Weinberg angle is bounded by sin/sup 2/theta/sub W/<1/4 and becomes slightly less than 30/sup 0/ in the limiting case. Below the mass scale of SU(4)/sub c/ breaking there exists an inequality between the Weinberg angle and the strong coupling constant, which is consistent with experiments. A correction to the neutral current of the Weinberg-Salam model is suggested. A new conserved quantum number is introduced in this model and there exist several new fermions with masses lighter than 160 GeV. The Kobayashi-Maskawa expression of Cabibbo mixing for quarks may be obtained in the model, generalized to include several generations of fermions.

Authors:
;
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
OSTI Identifier:
6381642
DOE Contract Number:  
DE-AC03-76SF00515
Resource Type:
Journal Article
Journal Name:
Phys. Rev. D; (United States)
Additional Journal Information:
Journal Volume: 23:11
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; WEINBERG-SALAM GAUGE MODEL; LEPTONS; QUARKS; CABIBBO ANGLE; COUPLING CONSTANTS; QUANTUM CHROMODYNAMICS; QUANTUM NUMBERS; SU-3 GROUPS; SU-4 GROUPS; SYMMETRY BREAKING; U-1 GROUPS; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; LIE GROUPS; MATHEMATICAL MODELS; PARTICLE MODELS; POSTULATED PARTICLES; QUANTUM FIELD THEORY; SU GROUPS; SYMMETRY GROUPS; U GROUPS; UNIFIED GAUGE MODELS; 645400* - High Energy Physics- Field Theory; 645201 - High Energy Physics- Particle Interactions & Properties-Theoretical- General & Scattering Theory

Citation Formats

Gao, C, and Chou, K. Possible SU(4)/sub c/ x SU(3)/sub f/ x U(1) model. United States: N. p., 1981. Web. doi:10.1103/PhysRevD.23.2690.
Gao, C, & Chou, K. Possible SU(4)/sub c/ x SU(3)/sub f/ x U(1) model. United States. https://doi.org/10.1103/PhysRevD.23.2690
Gao, C, and Chou, K. 1981. "Possible SU(4)/sub c/ x SU(3)/sub f/ x U(1) model". United States. https://doi.org/10.1103/PhysRevD.23.2690.
@article{osti_6381642,
title = {Possible SU(4)/sub c/ x SU(3)/sub f/ x U(1) model},
author = {Gao, C and Chou, K},
abstractNote = {An anomaly-free model of strong and electroweak interactions involving leptons and quarks in the SU(4)/sub c/ x SU(3)/sub f/ x U(1) gauge theory is constructed. After spontaneous symmetry breaking, it reduces to quantum chromodynamics for strong interactions and a broken SU(3) x U(1) model for electroweak interactions. As a limiting case it gives the same results as those of the Weinberg-Salam model in the low-energy region. The Weinberg angle is bounded by sin/sup 2/theta/sub W/<1/4 and becomes slightly less than 30/sup 0/ in the limiting case. Below the mass scale of SU(4)/sub c/ breaking there exists an inequality between the Weinberg angle and the strong coupling constant, which is consistent with experiments. A correction to the neutral current of the Weinberg-Salam model is suggested. A new conserved quantum number is introduced in this model and there exist several new fermions with masses lighter than 160 GeV. The Kobayashi-Maskawa expression of Cabibbo mixing for quarks may be obtained in the model, generalized to include several generations of fermions.},
doi = {10.1103/PhysRevD.23.2690},
url = {https://www.osti.gov/biblio/6381642}, journal = {Phys. Rev. D; (United States)},
number = ,
volume = 23:11,
place = {United States},
year = {Mon Jun 01 00:00:00 EDT 1981},
month = {Mon Jun 01 00:00:00 EDT 1981}
}