Cubic interaction vertex of massless higher-spin fields with an external electromagnetic field

T.V. Snegirev1

Abstract

We investigate the interaction of higher-spin fields with an external constant electromagnetic field. We use the gauge-invariant description, which, combined with perturbation theory applied to the external field, strongly restricts the possible form of interactions. As example, the cubic interaction vertex of a massless spin-2 field, is constructed, and we also give a generalization to a field of arbitrary integer spin.

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