Tree Level Mediation of Supersymmetry Breaking

We propose a new scheme hit which supersymmetry breaking is communicated to the MSSM sfermious by GUT gauge interactions at the tree level. The (positive) contribution of MSSM fields to Str(M-2) is automatically compensated by a (negative) contribution from heavy fields. Sfermion masses are flavour universal, thus solving the supersymmetric flavour problem. In the simplest SO(10) embedding, the ratio of different sfermion masses is predicted and differs from mSugra and other schemes, thus making this framework testable at the LHC. Gaugino masses are generated at the loop level but enhanced by model dependent factors.