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 Publish in OALib Journal ISSN: 2333-9721 APC: Only $99  Views Downloads  Relative Articles Standard-Model-like Chiral Spectra and the Origin of the Families$SU(n)_c\otimes SU(m)_L\otimes U(1)_N$generalizations of the Standard Model A parity invariant$SU(3)_c \otimes SU(3)_L \otimes U(1)$model Radiative seesaw-type mechanism of quark masses in SU(3\)_{C}\otimes SU(3\)_{L}\otimes U$$1$$_{X}$ Why the Four SM Families A Three-Family $SU(4)_c \otimes SU(2)_w \otimes U(1)$ Type I Vacuum Phenomenology of the $SU(3)_c\otimes SU(3)_L\otimes U(1)_X$ model with exotic charged leptons More on the Isomorphism $SU(2)\otimes SU(2)\cong SO(4)$ $SU(3)_c\otimes SU(3)_L\otimes U(1)_X$ as an $E_6$ Subgroup A $SU(4)\otimes O(3)$ scheme for nonstrange baryons More...
Physics  1996

# The Three Families from $SU(4)_A\otimes SU(3)_C\otimes SU(2)_L\otimes U(1)_X$ SM-like Chiral Models

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Abstract:

We give a detailed description of the model construction procedures about our new approach to the family structure of the standard model. SM-like chiral fermion spectra, largely "derivable" from the gauge anomaly constraints, are formulated in a $SU(N)\otimes SU(3)\otimes SU(2)\otimes U(1)$ symmetry framework as an extension of the SM symmetry. The $N=4$ case gives naturally three families as a result, with $U(1)_Y$ nontrivially embedded into the $SU(4)_A\otimes U(1)_X$. Such a spectrum has extra vector-like quarks and leptons. We illustrate how an acceptable symmetry breaking pattern can be obtained through a relatively simple scalar sector which gives naturally hierarchical quark mass matrices. Compatibility with various FCNC constraints and some interesting aspects of the possible phenomenological features are discussed, from a non-model specific perspective. The question of incorporating supersymmetry without putting in the Higgses as extra supermultiplet is also addressed.

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