High-E-T isolated-photon plus jets production in pp collisions at root s=8 TeV with the ATLAS detector

Aaboud, M, Aad, G, Abbott, B, Abdallah, J, Abdinov, O, Abeloos, B, AbouZeid, OS, Abraham, NL, Abramowicz, H, Abreu, H
et al (show 2843 more authors) (2017) High-E-T isolated-photon plus jets production in pp collisions at root s=8 TeV with the ATLAS detector. NUCLEAR PHYSICS B, 918. pp. 257-316.

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The dynamics of isolated-photon plus one-, two- and three-jet production in $pp$ collisions at a centre-of-mass energy of 8 TeV are studied with the ATLAS detector at the LHC using a data set with an integrated luminosity of 20.2 fb$^{-1}$. Measurements of isolated-photon plus jets cross sections are presented as functions of the photon and jet transverse momenta. The cross sections as functions of the azimuthal angle between the photon and the jets, the azimuthal angle between the jets, the photon-jet invariant mass and the scattering angle in the photon-jet centre-of-mass system are presented. The pattern of QCD radiation around the photon and the leading jet is investigated by measuring jet production in an annular region centred on each object; enhancements are observed around the leading jet with respect to the photon in the directions towards the beams. The experimental measurements are compared to several different theoretical calculations, and overall a good description of the data is found.

Item Type: Article
Additional Information: 59 pages in total, author list starting page 43, 16 figures, 5 tables, submitted to Nuclear Physics B, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2015-11/
Uncontrolled Keywords: hep-ex, hep-ex
Depositing User: Symplectic Admin
Date Deposited: 15 Jun 2017 14:53
Last Modified: 19 Jan 2023 07:02
DOI: 10.1016/j.nuclphysb.2017.03.006
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3008010