Neutrino Oscillations and Lepton Flavor Mixing

Abstract

In view of the recent announcement on non-zero neutrino mass from Super-Kamiokande experiment, it would be very timely to investigate all the possible scenarios on masses and mixings of light neutrinos. Recently suggested mass matrix texture for the quark CKM mixing, which can be originated from the family permutation symmetry and its suitable breakings, is assumed for the neutrino mass matrix and determined by the four combinations of solar, atmospheric and LSND neutrino data and cosmological hot dark matter bound as input constraints. The charged-lepton mass matrix is assumed to be diagonal so that the neutrino mixing matrix can be identified directly as the lepton flavor mixing matrix and no CP invariance violation originates from the leptonic sector. The results favor hierarchical patterns for the neutrino masses, which follow from the case when either solar-atmospheric data or solar-HDM constraints are used.

Latex, 9 pages

References in corpus (5)

• Limits on Neutrino Oscillations from the CHOOZ Experiment
• Evidence for nu_mu -> nu_e Neutrino Oscillations from LSND
• New Class of Quark Mass Matrix and Calculability of Flavor Mixing Matrix
• Generalized Neutrino Mixing from the Atmospheric Anomaly
• The solar neutrino problem after three hundred days of data at SuperKamiokande

Cited by in corpus (16)

• Flavor mixings and textures of the fermion mass matrices
• On Lepton Flavor Violation in Tau Decays
• Texture 4 zero Fritzsch-like lepton mass matrices
• Can four-zero-texture mass matrix model reproduce the observed quark and lepton mixing angles and CP violating phases?
• Texture specific mass matrices with Dirac neutrinos and their implications
• Possible textures of the fermion mass matrices
• Assignments of Universal Texture Components for Quark and Lepton Mass Matrices
• Broken Flavor 2 <-> 3 Symmetry and phenomenological approach for universal quark and lepton mass matrices
• Phenomenological Analysis of Lepton and Quark Mass Matrices
• Exploring the parameter space of texture 4 zero quark mass matrices
• Implications of texture 4 zero lepton mass matrices for U_{e3}
• Investigating non-Fritzsch like texture specific quark mass matrices
• Quark Mixing from Mass Matrix Model with Flavor 2 (\leftrightarrow) 3 Symmetry
• Charged fermion masses with Yukawa coupling strength universality
• A texture of neutrino mass matrix in view of recent neutrino experimental results
• Investigating texture six zero lepton mass matrices