Experimental predictions from a minimal version of the supersymmetric standard model

We make predictions for particle masses and couplings on the basis of the minimal supersymmetric standard model. We assume that supersymmetry breaking is seeded by a universal gaugino mass, and we perform a full one-loop analysis of the electroweak gauge symmetry breaking, imposing phenomenological and theoretical constraints on the model's input parameters. We find 76 GeV < mt < 90 GeV, 13 GeV < mH < 72 GeV, 4 GeV < msub(N1) < 20 GeV, 160 GeV < msub(g tilde) < 400 GeV, 140 GeV < msub(q tilde) < 350 GeV, msub(C1) < 65 GeV, 55 GeV < msub(eL) < 120 GeV, 40 GeV < msub(eR) < 75 GeV, and 0.4 < Rinv = [Γ(Z→N1N1) + Σi3=1Γ(Z→anti ν tildeiν tildei)]/Γ(Z→anti νν) < 1.4, where H, C1 and N1 are the lightest neutral Higgs scalar, spin-1/2 chargino and spin-1/2 neutralino, respectively, and the upper limits on the masses (lower limit on Rinv) hold if a N1 lighter than the W is to solve the dark matter problem. Therefore, several new particle signatures could be detectable at SLC, LEPI or II: Z→Hanti ff, e+e-→ZH, e+e- → l tilde+l tilde-, e+e-→C1+C1- and an apparently non-integer number of neutrinos from Z→missing neutrals (N1N1, anti ν tilde ν tilde). (orig.)