Origin of neutrino masses and mixings

Abstract

A brief overview of the important theoretical issues in neutrino physics is presented and some of the current ideas for addressing them in the framework of the seesaw mechanism of neutrino masses are discussed. Among the topics discussed are ways to understand maximal mixing pattern among the three neutrino species, both uni-maximal and bimaximal kinds. Constraints from baryogenesis on mixing patterns are noted. In the last section, the question of understanding the small masses for sterile neutrinos, which seem to be needed for various reasons is addressed.

8 pages, latex; Invited plenary talk at the Neutrino2000 conference, Sudbury; References updated

References in corpus (5)

• Can Neutrinos be Degenerate in Mass?
• Type II Seesaw and a Gauge Model for the Bimaximal Mixing Explanation of Neutrino Puzzles
• Generation of large flavor mixing from radiative corrections
• Neutrino Mass and Oscillation
• Radiative magnification of neutrino mixings and a natural explanation of the neutrino anomalies

Cited by in corpus (7)

• Constructing the large mixing angle MNS matrix in see-saw models with right-handed neutrino dominance
• Leptogenesis with Single Right-Handed Neutrino Dominance
• Large Solar Neutrino Mixing and Radiative Neutrino Mechanism
• Large Solar Neutrino Mixing in an Extended Zee Model
• Neutrinos in a left-right model with a horizontal symmetry
• Theoretical and Experimental Challenges in the Measurement of Neutrino Mass
• Gauge Origin of Baryon Number Conservation and Suppressed Neutrino Masses From Five Dimensions