Lydia Brenner

A measurement of the Higgs boson fiducial and differential cross-section in the two-photon final state using 80/fb of proton-proton collisions data collected at s√=13 TeV between 2015 to 2017 by the ATLAS experiment at the Large Hadron Collider. The cross section measurement in the two-photon final state is performed in a fiducial region closely matching the experimental selection and compared to the Standard model predictions. This is done for the inclusive fiducial region and differentially for the Higgs boson transverse momentum, the Higgs boson absolute rapidity, the transverse momentum of the leading jet and the number of b-tagged jets.