6 papers
Mass Hierarchies and the Seesaw Neutrino Mixing
T. K. Kuo, Guo-Hong Wu, Sadek W. Mansour
We give a general analysis of neutrino mixing in the seesaw mechanism with three flavors. Assuming that the Dirac and u-quark mass matrices are similar, we establish simple relatio…
Constraints on Exotic Mixing of Three Neutrinos
James Pantaleone, T. K. Kuo, Sadek Mansour
Exotic explanations are considered for atmospheric neutrino observations. Our analysis includes matter effects and the mixing of all three neutrinos under the simplifying assumptio…
Triangular Textures for Quark Mass Matrices
T. K. Kuo, Sadek W. Mansour, Guo-Hong Wu
The hierarchical quark masses and small mixing angles are shown to lead to a simple triangular form for the U- and D-type quark mass matrices. In the basis where one of the matrice…
Classification and Application of Triangular Quark Mass Matrices
T. K. Kuo, Sadek W. Mansour, Guo-Hong Wu
The hierarchical structure in the quark masses and mixings allows its ten physical parameters to be most conveniently encoded in mass matrices of the upper triangular form. We clas…
Solar Neutrinos and the Violation of Equivalence Principle
S. W. Mansour, T. K. Kuo
In this Brief Report, a non-standard solution to the solar neutrino problem is revisited. This solution assumes that neutrino flavors could have different couplings to gravity, hen…
Supernova neutrinos in the light of FCNC
S. W. Mansour, T. K. Kuo
We study the effect of including flavor changing neutral currents (FCNC) in the analysis of the neutrino signal of a supernova burst. When we include the effect of the FCNC which a…