Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2000-07-03
Int.J.Mod.Phys. A16 (2001) 163-178
Physics
High Energy Physics
High Energy Physics - Theory
19 pages, Latex, 4 figures, invited lecture at the Intern. Conf. on Fundamental Sciences: Mathematics and Theoretical Physics,
Scientific paper
The fermion generation puzzle has survived into this century as one of the great mysteries in particle physics. We consider here a possible solution within the Standard Model framework based on a nonabelian generalization of electric-magnetic duality. First, by constructing in loop space a nonabelian generalization of the abelian dual transform (Hodge *), one finds that a ``magnetic'' symmetry exists also in classical Yang-Mills theory dual to the original (``electric'') gauge symmetry. Secondly, from a result of 't Hooft's, one obtains that for confined colour SU(3), the dual symmetry $\widetilde{SU}(3)$ is spontaneously broken and can play the role of the ``horizontal symmetry'' for generations. Thirdly, such an identification not only offers an explanation why there should be three and apparently only three generations of fermions with the remarkable mass and mixing patterns seen in experiment, but allows even a calculation of the relevant parameters giving very sensible results. Other testible predictions follow ranging from rare hadron decays to cosmic ray air showers.
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