Speaker
Description
The production of jets and prompt isolated photons at hadron colliders provides a stringent
test of perturbative QCD at the highest energies. These processes can
also be used to constrain the proton structure.
Recent measurements obtained using data collected by the ATLAS
detector at a center-of-mass energy of 8 TeV and 13 TeV will be
presented. These include the measurements of the inclusive jet and multi-jet
production cross-section as well as measurements of the
cross-section of inclusive prompt photon and
di-photon production. The study of the dynamics of isolated photon plus
jet production in proton-proton collisions will also be discussed.
All results are compared with state-of-the-art theory predictions at NLO in pQCD,
interfaced with different parton distribution functions.
Finally, a determination of the strong coupling constant based on the
measurement of the transverse energy–energy
correlation function and its associated azimuthal asymmetry in events
with high transverse momentum jets will be presented.