Snowmass Benchmark Points and Three-Loop Running

Abstract

We present the full three-loop beta-functions for the MSSM generalised to include additional matter multiplets in 5, 10 representations of SU(5). We analyse in detail the effect of three-loop running on the sparticle spectrum for the MSSM Snowmass Benchmark Points. We also consider the effect on these spectra of additional matter multiplets (the semi-perturbative unification scenario).

Comments: 28 pages, TeX, 4 figures, 10 tables. Uses Harvmac and epsf