Anomalies in Nonlinear Sigma Models
- 15 October 1984
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 53 (16) , 1519-1522
- https://doi.org/10.1103/physrevlett.53.1519
Abstract
Certain nonlinear sigma models with fermions suffer from an anomaly similar to the one in non-Abelian gauge theory. We exhibit this anomaly using both perturbative and global methods. The affected theories are ill defined and hence unsuitable for describing low-energy dynamics. They include certain supersymmetric models in four-space dimensions.Keywords
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