TY - RPRT
TI - Extended weak-isospin and fermion masses in a unified model
AB - It is interesting to ask whether the weak isospin gauge group SU(2){sub L} is embedded in a larger symmetry group. From a model-building perspective there are usually too many possible answers to this question, because extensions invariable introduce new gauge anomalies. New fermions then have to be postulated, usually in an ad hoc manner, to cancel these anomalies. However, the quark-lepton symmetric models of Foot and Lew allow one to extend the weak-isospin group in a disciplined way, because the new anomalies can now cancel between quarks and generalized leptons. The basis of a model with gauge group G = [SU(3)]{sup 4} are presented in this paper. It was found that, through left-right symmetry, a partial unification of the gauge coupling constants of the theory naturally suggests itself, and that the symmetries of the model can impose restrictions on fermion masses and mixing angles at tree-level, which renormalization effects and mixing phenomena may modify in a predictive manner. 19 refs.
AU - Joshi, G C
AU - Volkas, R R
KW - 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
KW - FERMIONS
KW - MASS RENORMALIZATION
KW - UNIFIED GAUGE MODELS
KW - SYMMETRY BREAKING
KW - HIGGS BOSONS
KW - ISOSPIN
KW - LEPTONS
KW - MATRICES
KW - QUARKS
KW - SU-2 GROUPS
KW - SU-3 GROUPS
KW - WEAK INTERACTIONS
KW - 662210
KW - UNIFIED THEORIES AND MODELS
DO -
UR -
PB -
CY - Australia
PY - 1992
DA - 1993-12-31
LA - English
J2 -
C1 - Melbourne Univ., Parkville, VIC (Australia). School of Physics
C2 - Australian Research Council, Canberra, ACT (Australia)
ER -