Measurement of the cross section for isolated-photon plus jet production in pp collisions at root s=13 TeV using the ATLAS detector [Elektronisk resurs]
Aaboud, M.(författare)
Bergeås Kuutmann, Elin,1980- (författare)
Bokan, Petar(författare)
Brenner, Richard(författare)
Ekelöf, Tord(författare)
Ellert, Mattias(författare)
Ferrari, Arnaud,1973- (författare)
Gradin, P. O. Joakim(författare)
Isacson, Max F.(författare)
Mårtensson, Mikael U.F.(författare)
Öhman, Henrik(författare)
Rangel Smith, Camila(författare)
Sales De Bruin, Pedro(författare)
Zwalinski, L.(författare)
Uppsala universitet Teknisk-naturvetenskapliga vetenskapsområdet(utgivare)
Publicerad: ELSEVIER SCIENCE BV, 2018
Engelska.
Ingår i: Physics Letters B. - 0370-2693. ; 780, 578-602
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 the ATLAS 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.
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