Bootstrapping AdS2 × S2 hypermultiplets: hidden four-dimensional conformal symmetry

Abstract

Abstract We bootstrap the 4-point amplitude of $$ \mathcal{N} $$ N = 2 hypermultiplets in AdS2 × S2 at tree-level and for arbitrary external weights. We hereby explicitly demonstrate the existence of a hidden four-dimensional conformal symmetry that was used as an assumption in previous studies to derive this result.