Proposal of unified fermion texture

A unified form of mass matrix is proposed for neutrinos, charged leptons, up quarks and down quarks. Some constraints for the parameters involved are tentatively postulated. Then, the predictions are neatly consistent with available experimental data. Among the predictions are: (i) mτ ≅ 1776.80 MeV (with the inputs of me and mμ), (ii) mν0<<mν1 ∼ (0.6 to 4) x 10-2 eV and mν2 ∼ (0.2 to 1) x 10-1 eV (with the atmospheric-neutrino inputs of abs(mν22-mν12) ∼ (0.0003 to 0.01) eV2 and the νμ→ντ oscillation amplitude ∼ 0.8), and also (iii) mS≅ 270 MeV, abs(Vub/Vcb) ≅ 0.082 and arg Vub ≅ -64o (with the inputs of mc=1.3 GeV, mb=4.5 GeV, abs(Vus)=0.221 and abs(Vcb)=0.041, where mu<<mc<<mt and md<<ms<<mb). All elements of the Cabibbo-Kobayashi-Maskawa matrix are evaluated. All elements of its lepton counterpart are calculated up to an unknown phase (Appendix B). Some items related to dynamical aspects of the proposed fermion texture'' are briefly commented on (Appendix A). In particular, the notion of a novel dark matter, free of any Standard Model interactions (and their supersymmetric variants), appears in the case of preon option. (author)