Supersymmetry Breaking Without A Messenger

We propose a simple gauge-mediated supersymmetry breaking model in which suitable soft breaking masses are dynamically generated without relying on a messenger sector. This model is constructed as an extention of the 3-2 model and needs no ne-tuning of parameters. The dynamical supersymmetry breaking sector contains non-renormalizable interactions and vector-like elds. Non-renormalizable terms are characterized by the couplings of O(1) in units of the Planck scale. Hierarchy of various mass scales in the model arises from the non-renormalizable terms. The vacuum of this model conserves the color and electro-weak symmetry. We also discuss a possible solution to the problem in this framework.