Dynamical Supersymmetry Breaking without Messenger Gauge Interactions
  We investigate low-energy models of supersymmetry (SUSY) breaking by means of vector-like gauge theories for dynamical SUSY breaking. It is not necessary to introduce messenger gauge interactions utilized so far to mediate the SUSY breaking to the standard-model sector, which reduces complication in the model building. We also consider various other ways of SUSY-breaking transmission. 
T. Hotta, K.-I. Izawa and T. Yanagida