Supersymmetry anomalies, exotic pairs and the supersymmetric standard model

Abstract: For 34 years it has been known that chiral supersymmetry (SUSY) in 3+1 dimensions has a very large Becchi-Rouet-Stora (BRS) cohomology space at ghost charge one. This suggests that there might be corresponding SUSY anomalies coming from linearly divergent, triangle, Feynman diagrams. This paper discusses some progress and some outstanding issues related to these questions. The concept of exotic pairs is introduced, with an example from the massless supersymmetric standard model.