Abstract
Using a generalized consistency condition (gcc), we construct couplings between massless scalar fields and the spin 2 gravitational field. Specifically, we consider all possible third-order interaction terms for scalar fields ϕ and a μν and use the gcc to single out one. We also find three generalized current identities associated with the massless gauge fields.
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Fang, J., Christensen, W.J. & Nakashima, M.M. A generalized consistency condition for massless fields. Lett Math Phys 38, 213–216 (1996). https://doi.org/10.1007/BF00398322
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DOI: https://doi.org/10.1007/BF00398322