Journal of High Energy Physics > 2019 > 2019 > 10 > 1-51
Measurement of the inclusive isolated-photon cross section in pp collisions at s $$ \sqrt{s} $$ = 13 TeV using 36 fb−1 of ATLAS data
Source
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.
Identifiers
journal e-ISSN : | 1029-8479 |
DOI | 10.1007/JHEP10(2019)203 |
Authors
The ATLAS collaboration
- University Politehnica Bucharest, Bucharest, Romania
- Universidade Nova de Lisboa, Dep Física and CEFITEC of Faculdade de Ciências e Tecnologia, Caparica, Portugal
- Lisbon, Portugal
- CERN, Geneva 23, Switzerland
B. Abbott
- University of Oklahoma, Homer L. Dodge Department of Physics and Astronomy, Norman, U.S.A.