Phenomenological Constraints on Patterns of Supersymmetry Breaking

Specic models of supersymmetry breaking predict relations between the trilinear and bilinear soft supersymmetry breaking parameters A0 and B0 at the input scale. In such models, the value of tan can be calculated as a function of the scalar masses m0 and the gaugino masses m1=2, which we assume to be universal. The experimental constraints on sparticle and Higgs masses, b ! s decay and the cold dark matter density CDMh 2 can then be used to constrain tan in such specic models of supersymmetry breaking. In the simplest Polonyi model with A0 =( 3 p 3)m0 = B0 + m0, we nd 11 0( 0, and the range 1:25 < A0=m0 < 4:8 for <0. In these models, we nd no solutions in the rapid-annihilation ‘funnels’ or in the ‘focus-point’ region. We also discuss the allowed range of tan in the no-scale model with A0 = B0 =0 . In all these models, most of the allowed regions are in the ~ 1 coannihilation ‘tail’.