Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-04-27
Physics
High Energy Physics
High Energy Physics - Phenomenology
9 pages, no figure, title changed, version to appear in Phys.Lett.B
Scientific paper
10.1016/j.physletb.2008.06.027
Based on a new approach to quark and lepton masses, where the mass spectra originate in vacuum expectation values of O(3)-flavor 1+5 (gauge singlet) scalars, a neutrino mass matrix of a new type is speculated. The mass matrix is described in terms of the up-quark and charged lepton masses, and, by assuming a special flavor basis, it can be accommodated to a nearly tribimaximal mixing without explicitly assuming a discrete symmetry. Quark mass relations are also discussed based on the new approach.
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