Infra-red fixed points in supersymmetryB ANANTHANARAYAN Centre for Theoretical Studies, Indian Institute of Science, Bangalore 560 012, India Abstract. Model independent constraints on supersymmetric models emerge when certain couplings are drawn towards their infra-red (quasi) fixed points in the course of their renormalization group evolution. The general principles are first reviewed and the conclusions for some recent studies of theories with R-parity and baryon and lepton number violations are summarized. Keywords. Supersymmetry; renormalization group; fixed points. Pacs No.11.10.Hi; 11.30.Fs; 12.60.Jv |