Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2005-01-24
Phys.Rev. D71 (2005) 094024
Physics
High Energy Physics
High Energy Physics - Phenomenology
25 pages
Scientific paper
10.1103/PhysRevD.71.094024
We systematically investigate general forms of mass matrices for three-generation up and down quarks, including asymmetrical ones in generation space. Viable zero matrix elements are explored which are compatible with the current observation of masses and mixing angles, and also with the recent measurement of CP violation in the B-meson system. The simplest form with the maximal number of vanishing matrix elements is found to be almost consistent with the experimental data, but has a scratch that one of the mixing angle is slightly large. At the next-to-minimal level, it is found with a help of leptonic generation mixing that only six patterns of mass matrices well describe the experimental data. These sets of mass textures predict all the properties of quarks, including the CP violation, as well as the large (charged) lepton mixing, which may be appropriate for the atmospheric neutrino in grand unification scheme.
Uekusa Nobuhiro
Watanabe Atsushi
Yoshioka Koichi
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