Running of soft parameters in extra space-time dimensions

The evolution of the parameters including those in the soft supersymmetry-b reaking (SSB) sector is studied in the minimal supersymmetric standard mode l (MSSM) with a certain set of Kaluza-Klein towers which has been recently considered by Dienes et al. We use the continuous Wilson renormalization gr oup technique to derive the one-loop matching condition between the effecti ve, renormalizable and original, unrenormalizable theories. We investigate whether the assumption of a large compactification radius in the model is c onsistent with the gauge coupling unification, the b-tau unification and th e radiative breaking of the electroweak gauge symmetry with the universal S SB terms. We calculate the superpartner spectrum under the assumption of th e universal SSB parameters to find differences between the model and the MS SM. (C) 1999 Elsevier Science B.V. All rights reserved.