paper

Twistor Constructions for Higher-spin Extensions of (Self-dual) Yang-Mills

arXiv:2107.04500 · doi:10.1007/JHEP11(2021)117

Abstract

We present the inverse Penrose transform (the map from spacetime to twistor space) for self-dual Yang-Mills (SDYM) and its higher-spin extensions on a flat background. The twistor action for the higher-spin extension of SDYM (HS-SDYM) is of BF-type. By considering a deformation away from the self-dual sector of HS-SDYM, we discover a new action that describes a higher-spin extension of Yang-Mills theory (HS-YM). The twistor action for HS-YM is a straightforward generalization of the Yang-Mills one.

25 pages. v2: corrections, changed title, improved presentation

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