How neutrinos get mass and what other things may happen besides oscillations?ERNEST MA Department of Physics, University of California, Riverside CA 92521, USA Abstract. In this talk I address the theoretical issue of why new physics is required to obtain a nonzero neutrino mass. I then discuss what other things may happen besides neutrino oscillations. In particular I consider a possible new scenario of leptogenesis in R-parity nonconserving supersymmetry. Keywords. Neutrino masses; leptogenesis; supersymmetry. Pacs No.14.60; 12.60; 98.80 |