On unfolded off-shell formulation for higher-spin theory
arXiv:1905.06925 · doi:10.1016/j.physletb.2019.134956
Abstract
We present an unfolded off-shell formulation for free massless higher-spin fields in 4d Minkowski space in terms of spinorial variables. This system arises from the on-shell one by the addition of external higher-spin currents, for which we find an unfolded description. Also we show that this off-shell system can be interpreted as Schwinger-Dyson equations and restore two-point functions of higher-spin fields this way.
11 pages. V3: evaluation of two-point functions detailed, typos corrected, reference added. To appear in Physics Letters B