Lepton Mass Matrices and Neutrino Oscillations
Kyungsik Kang, Sin Kyu Kang, Jihn E. Kim, Pyungwon Ko · arXiv (Cornell University) · 1997
We investigate the phenomenological consequences of lepton mass matrices that could be originated from the family permutation symmetry and its suitable breakings. Adopting the recently proposed new mass matrix for the charged lepton mass matrix as well as the Majorana neutrino mass matrix considered before by the present authors, we find that the resulting lepton mixing matrix is consistent with the current data on various types of neutrino oscillation experiments. Our prediction of $\ u_{\\mu} \\leftrightarrow \ u_{\\tau}$ probability is smaller than 1.85 $\\times 10^{-2}$ with $\\Delta m_{\\mu\\tau}^2 planned CHORUS and other experiments searching for $\ u_{\\mu} \\leftrightarrow with $\\sum | m_{\ u_i} | \\sim 6 $ eV, they can be hot dark matter candidates, and the lepton family number breaking effects such as $\\mu \\to e \\gamma$ and