Reconstructing Neutrino Mass Spectrum

Abstract

Reconstruction of the neutrino mass spectrum and lepton mixing is one of the fundamental problems of particle physics. In this connection we consider two central topics: (i) the origin of large lepton mixing, (ii) possible existence of new (sterile) neutrino states. We discuss also possible relation between large mixing and existence of sterile neutrinos.

Comments: 32 pages, LaTeX, sprocl.sty, 9 figures. Invited talk given at the 5th International WEIN Symposium: A Conference on Physics Beyond the Standard Model (WEIN 98), Santa Fe, NM, June 14--21, 1998