Conformal invariance versus Weyl invariance
arXiv:1903.05653 · doi:10.1140/epjc/s10052-020-7639-x
Abstract
The most general lagrangian describing spin 2 particles in flat spacetime and containing operators up to (mass) dimension 6 is carefully analyzed, determining the precise conditions for it to be invariant under linearized (transverse) diffeomorphisms, linearized Weyl rescalings, and conformal transformations.
24 pages