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arXiv · 2504.06343

Compton amplitude for massive bosons of arbitrary spin

Aakash Kumar·Arnab Rudra·Manav Shah·Rahul Shaw
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Abstract

In this work, we write down an analytic expression of electromagnetic tree-level Compton amplitude for a completely symmetric traceless (bosonic) higher spin particle in any dimension. Our analysis is restricted to the three-point function, which is unique in the Infrared and responsible for the Coulomb interactions/soft photon theorem. We propose an analogue of $R_ξ$ gauge in a theory of higher spin particles. We demonstrate that the theory is unitary only for $ξ=1,\infty$.

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Aakash Kumar, Arnab Rudra, Manav Shah, Rahul Shaw. 2025-04-08. Compton amplitude for massive bosons of arbitrary spin. https://arxiv.org/abs/2504.06343

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