Speaker
Prof.
Marcello Fanti
(Universita` degli Studi di Milano)
Description
The production of prompt isolated photons at hadron colliders provides stringent tests of
perturbative QCD and can be used to evaluate probability density functions of partons in the proton.
In this talk, we present the measurements of the isolated-photon plus two jets and the inclusive
isolated-photons cross sections, both measured using proton-proton collision data collected by
the ATLAS experiment at √s=13 TeV. A ratio of photon cross sections at √s=8 and √s=13 TeV will
also be presented. The results are compared with state-of-the-art theory predictions,
indicating several interesting discrepancies.
Primary author
Prof.
Marcello Fanti
(Universita` degli Studi di Milano)