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Measurement of the cross section for isolated-photon plus jet production in pp collisions at root s=13 TeV using the ATLAS detector
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0001-6945-1916
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0003-3867-0336
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0002-8015-7512
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Number of Authors: 29042018 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, no 780, p. 578-602Article in journal (Refereed) Published
Abstract [en]

The dynamics of isolated-photon production in association with a jet in proton-proton collisions at a centre-of-mass energy of 13 TeV are studied with theATLAS detector at the LHC using a dataset with an integrated luminosity of 3.2 fb(-1). Photons are required to have transverse energies above 125 GeV. Jets are identified using the anti-k(t) algorithm with radius parameter R = 0.4 and required to have transverse momenta above 100 GeV. Measurements of isolated-photon plus jet cross sections are presented as functions of the leading-photon transverse energy, the leading-jet transverse momentum, the azimuthal angular separation between the photon and the jet, the photon-jet invariant mass and the scattering angle in the photon-jet centre-of-mass system. Tree-level plus parton-shower predictions from SHERPA and PYTHIA as well as next-to-leading-order QCD predictions from JETPHOX and SHERPA are compared to the measurements. 

Place, publisher, year, edition, pages
2018. no 780, p. 578-602
Keywords [en]
Hadron-Collisions, Fragmentation, Dynamics
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-233885DOI: 10.1016/j.physletb.2018.03.035ISI: 000432187800079Scopus ID: 2-s2.0-85053456573OAI: oai:DiVA.org:kth-233885DiVA, id: diva2:1244354
Funder
Swedish Research CouncilWallenberg Foundations
Note

QC 20180831

Available from: 2018-08-31 Created: 2018-08-31 Last updated: 2018-11-19Bibliographically approved

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Kastanas, A.Lund-Jensen, BengtOhm, C.Ripellino, G.Sidebo, P. E.Strandberg, J.

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