Anomaly-safe discrete groups

作者：Chen Mu Chun; Fallbacher Maximilian^*; Ratz Michael; Trautner Andreas; Vaudrevange Patrick K S

来源：Physics Letters B, 2015, 747: 22-26.

DOI：10.1016/j.physletb.2015.05.047

We show that there is a class of finite groups, the so-called perfect groups, which cannot exhibit anomalies. This implies that all non-Abelian finite simple groups are anomaly-free. On the other hand, non-perfect groups generically suffer from anomalies. We present two different ways that allow one to understand these statements.

• 出版日期2015-7-30