Measurement of the cross section for isolated-photon plus jet production in pp collisions at √s=13TeV using the ATLAS detector

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URI: http://hdl.handle.net/10481/54800
ISSN: 0370-2693
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Author
Aguilar Saavedra, Juan Antonio; Atlas Collaboration
Editorial
Elsevier B.V.
Date
2018
Referencia bibliográfica
Atlas Collaboration. ´Measurement of the cross section for isolated-photon plus jet production in pp collisions at √s=13TeV using the ATLAS detector´. Physics Letters B 780 (2018) 578–602. [http://hdl.handle.net/10481/54800]
Sponsorship
We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFW and FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS,MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF and DNSRC, Denmark; IN2P3-CNRS, CEA-DRF/IRFU, France; SRNSFG, Georgia; BMBF, HGF, and MPG, Germany; GSRT, Greece; RGC, Hong Kong SAR, China; ISF, I-CORE and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; NWO, Netherlands; RCN, Norway; MNiSW and NCN, Poland; FCT, Portugal; MNE/IFA, Romania; MES of Russia and NRC KI, Russian Federation; JINR;MESTD, Serbia; MSSR, Slovakia; ARRS andMIZŠ, Slovenia; DST/NRF, South Africa; MINECO, Spain; SRC and Wallenberg Foundation, Sweden; SERI, SNSF and Cantons of Bern and Geneva, Switzerland; MOST, Taiwan; TAEK, Turkey; STFC, United Kingdom; DOE and NSF, United States of America. In addition, individual groups and members have received support from BCKDF, the Canada Council, CANARIE, CRC, Compute Canada, FQRNT, and the Ontario Innovation Trust, Canada; EPLANET, ERC, ERDF, FP7, Horizon 2020 and Marie Skłodowska-Curie Actions, European Union; Investissements d’Avenir Labex and Idex, ANR, Région Auvergne and Fondation Partager le Savoir, France; DFG and AvH Foundation, Germany; Herakleitos, Thales and Aristeia programmes co-financed by EU-ESF and the Greek NSRF; BSF, GIF and Minerva, Israel; BRF, Norway; CERCA Programme Generalitat de Catalunya, Generalitat Valenciana, Spain; the Royal Society and Leverhulme Trust, United Kingdom.
Abstract
The dynamics of isolated-photon production in association with a jet in proton–proton collisions at a centre-of-mass energy of 13TeV are studied with the ATLAS detector at the LHC using a dataset with an integrated luminosity of 3.2fb−1. Photons are required to have transverse energies above 125GeV. Jets are identified using the anti-ktalgorithm with radius parameter R =0.4and required to have transverse momenta above 100GeV. 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 fromSherpaandPythiaas well as next-to-leading-order QCD predictions fromJetphoxandSherpaare compared to the measurements.
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