Flavors and Horizontal Symmetries
Paul H. Frampton
Abstract
After a brief introduction to what are the basic flavor questions to be addressed, I introduce the underlying ideas of horizontal symmetries, with group GH. For the purposes of specific model building, it is useful to classify models according to the scale at which GH is broken. I consider the three cases: below mt; somewhat above mt; and at MGUT. After a discussion of the shadow sector in the E6 × E8' superstring, there is a summary.
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