Classical spin gravitational Compton scattering

A bstract We introduce a novel bootstrap method for heavy-mass effective field theory classical Compton scattering amplitudes involving two massless particles and arbitrary-spin infinite-mass limit particles. Using suitable ansatz, we deduce new explicit spin results gluon four five-point infinite mass processes that exhibit certain exponentiated three-point tree-level factorizations feature no spurious poles. discuss the generalization of our to higher multiplicities summarize future potential applications.