Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-11-01
Phys.Rev.D74:113004,2006
Physics
High Energy Physics
High Energy Physics - Phenomenology
Version to be published in PRD. References modified, and a misprint in eq (9) is corrected
Scientific paper
10.1103/PhysRevD.74.113004
A mass-independent texture is a set of linear relations of the fermion mass-matrix elements which imposes no constraint on the fermionic masses nor the Majorana phases. Magic and 2-3 symmetries are examples. We discuss the general construction and the properties of these textures, as well as their relation to the quark and neutrino mixing matrices. Such a texture may be regarded as a symmetry, whose unitary generators of the symmetry group can be explicitly constructed. In particular, the symmetries connected with the tri-bimaximal neutrino mixing matrix are discussed, together with the physical consequence of breaking one symmetry but preserving another.
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