What if supersymmetry breaking appears below the GUT scale ?

We consider the possibility that the soft supersymmetry-breaking parameters m1/2 and m0 of the MSSM are universal at some scale Min below the supersymmetric grand unification scaleMGUT , as might occur in scenarios where either the primordial supersymmetry-breaking mechanism or its communication to the observable sector involve a dynamical scale below MGUT . We analyze the (m1/2, m0) planes of such sub-GUT CMSSM models, noting the dependences of phenomenological, experimental and cosmological constraints on Min. In particular, we find that the coannihilation, focus-point and rapid-annihilation funnel regions of the GUT-scale CMSSM approach and merge when Min ∼ 10 12 GeV. We discuss sparticle spectra and the possible sensitivity of LHC measurements to the value of Min. CERN-PH-TH/2006-110 June 2006