Non-uniqueness of the supersymmetric extension of the O(3) σ-model

Abstract

Abstract We study the supersymmetric extensions of the O(3) σ-model in 1+1 and 2+1 dimensions. We show that it is possible to construct non-equivalent supersymmetric versions of a given model sharing the same bosonic sector and free from higher-derivative terms.

Keywords

• Superspaces
• Extended Supersymmetry