On Supersymmetries

Abstract

After reviewing electroweak (EW) scale supersymmetry (susy) and split susy, as well as their implications in very high energy cosmic rays, I present a high scale susy model for fermion masses. An O(0.1) nu_e-nu_{tau} mixing is expected.

Comments: 4 pages, no figure, talk at 14th International Symposium on Very High Energy Cosmic Ray Interactions (ISVHECRI 2006) 15-22 Aug 2006, Weihai