37,074 research outputs found
Fermion Mass Matrices in term of the Cabibbo-Kobayashi-Maskawa Matrix and Mass Eigenvalues
A parameter free, model independent analysis of quark mass matrices is
carried out. We find a representation in terms of a diagonal mass matrix for
the down (up) quarks and a suitable matrix for the up (down) quarks, such that
the mass parameters only depend on the six quark masses and the three angles
and phase appearing in the Cabibbo-Kobayashi-Maskawa matrix. The results found
may also be applied to the Dirac mass matrices of the leptons.Comment: 7 pages LaTeX, no figures. Title changed, Particle Data Group
parametrization of CKM matrix used in equation (8), numerical values in table
1 evaluated using the quark mass values at the Z^o mass scale, equation (21)
eliminated and 2 references change
Neutrino masses and baryogenesis in SO(10) unified theories
We report on some phenomenological implications of a class of unified models
based on SO(10) gauge group, with intermediate symmetry group containing
SU(2)_R. Interesting predictions for neutrino masses are discussed, which are
relevant both for solar neutrino and dark matter problems, as well as a model
for the formation of the baryon asymmetry of the universe required by
primordial nucleosynthesis.Comment: Latex 16 pages, 1 ps figure. Appeared in Proceedings of seventh
International Workshop on Neutrino Telescopes, Venezia February 27 - March 1
1996, Editor M. Baldo Ceoli
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