Higher spin gravitational couplings: Ghosts in the Yang-Mills detour complex

@article{Gover2006HigherSG,
  title={Higher spin gravitational couplings: Ghosts in the Yang-Mills detour complex},
  author={A. Rod Gover and K. E. Hallowell and Andrew Waldron},
  journal={Physical Review D},
  year={2006},
  volume={75},
  pages={024032}
}
Gravitational interactions of higher spin fields are generically plagued by inconsistencies. There exists however, a simple framework that couples higher spins to a broad class of gravitational backgrounds (including Ricci flat and Einstein) consistently at the classical level. The model is the simplest example of a Yang-Mills detour complex and has broad mathematical applications, especially to conformal geometry. Even the simplest version of the theory, which couples gravitons, vectors and… 

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