Universality and the sparticle spectrum

Abstract

We calculate the particle spectrum of the SSM which follows from the assumption that the commonly assumed universal form of the soft supersymmetry --breaking terms is invariant under renormalisation. It is argued that this ``strong'' universality might be approached as an infra--red fixed point for the unified theory above the unification scale.

Comments: 18 pages, tex, six figures in a uuencoded postscript file. Uses harvmac and epsf; Revised version interprets universality conditions as an infra--red limit for the evolution of couplings and masses. The low energy phenomenology is unaffected