Abstract
The differential cross section for isolated-photon production in pp collisions is measured at a centre-of-mass energy of 13 TeV with the ATLAS detector at the LHC using an integrated luminosity of 36.1 fb−1. The differential cross section is presented as a function of the photon transverse energy in different regions of photon pseudorapidity. The differential cross section as a function of the absolute value of the photon pseudorapidity is also presented in different regions of photon transverse energy. Next-to-leading-order QCD calculations from Jetphox and Sherpa as well as next-to-next-to-leading-order QCD calculations from Nnlojet are compared with the measurement, using several parameterisations of the proton parton distribution functions. The predictions provide a good description of the data within the experimental and theoretical uncertainties.
Original language | English |
---|---|
Article number | 203 |
Number of pages | 51 |
Journal | JHEP |
Volume | 2019 |
Issue number | 203 |
DOIs | |
Publication status | Published - 18 Oct 2019 |
Bibliographical note
49 pages in total, author list starting page 33, 12 figures, 2 tables, submitted to JHEP. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2017-29/Keywords
- hep-ex
- Hadron-Hadron scattering (experiments)
- Photon production
- QCD