期刊
GUT2012
卷 1467, 期 -, 页码 7-14出版社
AMER INST PHYSICS
DOI: 10.1063/1.4742073
关键词
Gauged flavor; vector-like quarks; grand unification
I review a recent work on gauged flavor with left-right symmetry, where all masses and all Yukawa couplings owe their origin to spontaneous flavor symmetry breaking. This is suggested as a precursor to a full understanding of flavor of quarks and leptons. An essential ingredient of this approach is the existence of heavy vector-like fermions, which is the home of flavor, which subsequently gets transmitted to the familiar quarks and leptons via the seesaw mechanism. I then discuss implications of extending this idea to include supersymmetry and finally speculate on a possible grand unified model based on the gauge group SU(5)(L) x SU(5)(R) which provides a group theoretic origin for the vector-like fermions.
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