Supersymmetry at Ordinary Energy
Everybody knows that there is a gauge hierarchy problem in Grand Unified Theories (GUTS). By now almost everybody knows that supersymmetry offers at least a partial resolution of this problem. A supersymmetric GUT, at energies far below the unification mass, must behave like a supersymmetric extension of the standard color × electro-weak model where the supersymmetry has been broken either explicitly or spontaneously. In this lecture I would like to first discuss the general problems involved in constructing such low energy supersymmetric theories and then to review several recent attempts to build realistic models.
KeywordsGauge Group Tree Level Yukawa Coupling Radiative Correction Supersymmetry Breaking
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