Flavor Symmetries and the Description of Flavor Mixing

Abstract

It is shown that the hierarchical structure of the quark mass terms in the standard model suggests a new description of the flavor mixing. The latter is primarily a heavy quark mixing involving the t and b quarks, followed by a mixing exclusively in the u-channel or the d-channel. The complex phase describing CP violation arises only in the light quark sector. The Cabibbo angle is not a basic parameter, but results as a superposition of both the u-channel and d-channel mixing terms. The new description has a number of significant advantages in comparison with all descriptions previously used. It is suggested that the new description be used in all future discussions of flavor physics and CP violation.

Latex 13 pages

References in corpus (2)

• Consequences of a U(2) Flavour Symmetry
• New Class of Quark Mass Matrix and Calculability of Flavor Mixing Matrix

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