Construction of all N=4 conformal supergravities.

@article{Butter2017ConstructionOA,
  title={Construction of all N=4 conformal supergravities.},
  author={D. Allan Butter and Franz Ciceri and Bernard de Wit and Bindusar Sahoo},
  journal={Physical review letters},
  year={2017},
  volume={118 8},
  pages={081602}
}
All N=4 conformal supergravities in four space-time dimensions are constructed. These are the only N=4 supergravity theories whose actions are invariant under off-shell supersymmetry. They are encoded in terms of a holomorphic function that is homogeneous of zeroth degree in scalar fields that parametrize an SU(1,1)/U(1) coset space. When this function equals a constant the Lagrangian is invariant under continuous SU(1,1) transformations. The construction of these higher-derivative invariants… CONTINUE READING