Search for exotic decays of the Higgs boson to at least one photon and missing transverse momentum in proton-proton collisions at 13 TeV with the ATLAS detector

This talk will present the preliminary results of a search for the Higgs boson decaying to at least one photon and missing transverse energy in proton-proton collisions at 13 TeV with the ATLAS detector at the Large Hadron Collider. I will discuss the models that can yield these signatures, background estimation, and limits set on the branching fraction of Higgs decays to this signature.