منابع مشابه
Atmospheric Neutrino Oscillation and a Phenomenological Lepton Mass Matrix
We propose simple phenomenological lepton mass matrices which describe the three neutrinos almost degenerate in mass, leading to a very large mixing angle between νμ and ντ , as consistent with a recent report on atmospheric neutrino oscillation from the Superkamiokande collaboration. Our matrix model also gives νe − νμ mixing in agreement with the value required for neutrino oscillation to exp...
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The three active light neutrinos are used to explain the neutrino oscillations. The inherently bi-large mixing neutrino mass matrix and the Fritzsch type, bi-small mixing charged lepton mass matrix are assumed. By requiring the maximal νμ − ντ mixing for the atmospheric neutrino problem and the masssquared difference approperiate for the almost maximal mixing solution to the solar neutrino prob...
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The smallness and hierarchy in fermion parameters could be the result of selection rules due to an Abelian horizontal symmetry broken by a small parameter. When applied to the lepton sector, then for a large class of models, a number of interesting order of magnitude relations arise: with i < j, m(ν i)/m(ν j) ∼ sin 2 θ ij ; m(ℓ − i)/m(ℓ − j) < ∼ sin θ ij ; m(ν i)/m(ν j) > ∼ m 2 (ℓ − i)/m 2 (ℓ −...
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Based on the experimental data and estimations of the charged leptons and quark masses, a close power law with exponent 3/4 has been found, connecting the charged lepton masses and up quarks masses. It has been shown that this approximation is considerably better than any known approach. A similar mass relation has been suggested for the masses of the neutral leptons and down quarks. The latter...
متن کاملPhenomenological Analysis of Lepton and Quark Mass Matrices
We propose a model that all quark and lepton mass matrices originally have the same zero texture. Namely their (1,1), (1,3) and (3,1) components are zeros. For the neutrino mass matrix, we further impose the symmetry between the second and the third generations. Then the neutrino mass matrix has a maximal νμ ντ mixing. Our model is consistent with all the neutrino oscillation experiments and th...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 1993
ISSN: 0033-068X,1347-4081
DOI: 10.1143/ptp/89.1.263