MODIFIED NEUTRINO MASS MATRIX SUBJECT TO 2-3 SYMMETRY WITH VANISHING Tr M
We modified neutrino mass matrix subject to 2-3 symmetry by imposing the requirement that its trace vanishing. Themodified neutrino mass matrix prediction on neutrino mass hierarchy is evaluated by setting the value of parameters ineigenvalues. We find that the modified neutrino mass matrix can predict either normal or inverted hierarchy. We also discuss itsphenomenological implication qualitatively on neutrino oscillation experimental data.