Speaker
Giovanni Stagnitto
(Istituto Nazionale di Fisica Nucleare)
Description
Photon pair production is a key benchmark process at the LHC, relevant for Higgs measurements and searches for new physics. Photons are experimentally identified using isolation criteria that allow limited hadronic energy in a cone around the photon, admitting contributions from collinear radiation and parton-to-photon fragmentation. We compute NNLO QCD corrections to diphoton production including these effects, enabling a faithful implementation of experimental isolation prescriptions.
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Authors
Alexander Huss
(CERN)
Giovanni Stagnitto
(Istituto Nazionale di Fisica Nucleare)
Marius Höfer
(Universität Zürich)
Thomas Gehrmann
(Universität Zürich)