CP Violation and the Light Quark Sector
Abstract
Description
In view of the observed strong hierarchy of quark masses, we discuss a new description of flavor mixing which is particularly suited for models of quark mass matrices based on flavor symmetries. The necessary and sufficient conditions for CP violation are clarified. The emergence of CP violation is primarily linked to a large phase difference (near 90^{\circ}) in the light quark sector. The unitarity triangle is determined by the mass ratios of the light quarks. We conclude that the unitarity triangle should be close or identical to a rectangular triangle, and CP violation is maximal in this sense.
LaTex 16 pages. Invited talk given at the 13th Rencontres de Physique de la Vallee d'Aoste, Results and Perspectives in Particle Physics, La Thuile, Aosta Valley, Italy, March 1999 (to appear in the proceedings)
LaTex 16 pages. Invited talk given at the 13th Rencontres de Physique de la Vallee d'Aoste, Results and Perspectives in Particle Physics, La Thuile, Aosta Valley, Italy, March 1999 (to appear in the proceedings)