Higgs boson decay to photon and missing transverse momentum in gluon-gluon fusion at ATLAS

Higgs boson decays to a photon and missing transverse momentum are motivated by beyond the Standard Model (BSM) theories such as dark photons. Past searches for dark photons at ATLAS and CMS have used the associated production (ZH) and vector boson fusion production modes. This talk discusses a new approach that relies on the gluon-gluon fusion production mode.