Measurement of the differential cross section for the production of an isolated photon with associated jet in ppbar collisions at sqrt(s)=1.96 TeV

Abstract

The process ppbar -> photon + jet + X is studied using 1.0 fb^-1 of data collected by the D0 detector at the Fermilab Tevatron ppbar collider at a center-of-mass energy sqrt(s)=1.96 TeV. Photons are reconstructed in the central rapidity region |y_gamma|<1.0 with transverse momenta in the range 30<Pt_gamma<400 GeV while jets are reconstructed in either the central |y_jet|<0.8 or forward 1.5<|y_jet|<2.5 rapidity intervals with Pt_jet>15 GeV. The differential cross section d^3sigma/dPt_gamma dy_gamma dy_jet is measured as a function of Pt_gamma in four regions, differing by the relative orientations of the photon and the jet in rapidity. Ratios between the differential cross sections in each region are also presented. Next-to-leading order QCD predictions using different parameterizations of parton distribution functions and theoretical scale choices are compared to the data. The predictions do not simultaneously describe the measured normalization and Pt_gamma dependence of the cross section in any of the four measured regions.

arXiv comment13 pages, 10 figures

References in corpus (21)

• High-Energy-Physics Event Generation with PYTHIA 6.1
• The Upgraded D0 Detector
• Cross section of isolated prompt photons in hadron-hadron collisions
• Physical Gluons and High $E_T$ Jets
• A new critical study of photon production in hadronic collisions
• Parton distributions from deep-inelastic-scattering data
• Heavy Quark Mass Effects in Deep Inelastic Scattering and Global QCD Analysis
• Measurement of the shape of the boson rapidity distribution for p\bar{p}-> Z/gamma*-> e+e- +X events produced at sqrt(s) of 1.96 TeV
• An NLO QCD analysis of inclusive cross-section and jet-production data from the ZEUS experiment
• Measurement of the Isolated Photon Cross Section in p-pbar Collisions at sqrt{s}=1.96 TeV
• The Isolated Photon Cross Section in p pbar Collisions at sqrt(s) = 1.8 TeV
• High-p_T Jets in pbarp Collisions at sqrt{s} = 630 and 1800 GeV
• Constraints on the Proton's Gluon Distribution from Prompt Photon Production
• Comparison of the Isolated Direct Photon Cross Sections in $p\bar{p}$ Collisions at $\sqrt{s}=1.8$ TeV and $\sqrt{s}=0.63$ TeV
• Threshold Resummation and Rapidity Dependence
• Search for Large Extra Spatial Dimensions in Dimuon Production with the D0 Detector
• Measurement of Prompt Photon Cross Sections in Photoproduction at HERA
• Observation of isolated high-E_T photons in deep inelastic scattering
• Measurement of prompt photons with associated jets in photoproduction at HERA
• Study of $Z\gamma$ events and limits on anomalous $ZZ\gamma$ and $Z\gamma \gamma$ couplings in ppbar collisions at $sqrt(s)=1.96$ TeV
• Search for New Physics Using Quaero: A General Interface to D0 Event Data

Cited by in corpus (27)

• Rivet user manual
• Constraints on large-$x$ parton distributions from new weak boson production and deep-inelastic scattering data
• Searching for the light dark gauge boson in GeV-scale experiments
• Double parton interactions in photon+3 jet events in ppbar collisions sqrt{s}=1.96 TeV
• Global parton distributions with nuclear and finite-Q^2 corrections
• Momentum imbalance of isolated photon-tagged jet production at RHIC and LHC
• Limits on isotropic Lorentz violation in QED from collider physics
• New parton distributions from large-x and low-Q^2 data
• Measurement of the production cross section of an isolated photon associated with jets in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector
• Measurement of the inclusive jet cross section in p pbar collisions at sqrt(s)=1.96 TeV
• Direct Photon Production in Association With A Heavy Quark At Hadron Colliders
• Measurement of the triple-differential cross section for photon + jets production in proton-proton collisions at sqrt(s) = 7 TeV
• Photon - Jet Correlations and Constraints on Fragmentation Functions
• Measurement of photon+b+X and photon+c+X production cross sections in ppbar collisions at sqrt(s)=1.96 TeV
• Isolating Prompt Photons with Narrow Cones
• An Enhanced Threshold Resummation Formalism for Lepton Pair Production and Its Effects in the Determination of Parton Distribution Functions
• Quarkonium production in high energy proton-proton and proton-nucleus collisions
• Deuterium scattering experiments in CTEQ global QCD analyses: a comparative investigation
• T-odd effects in photon-jet production at the Tevatron
• Light quark and antiquark constraints from new electroweak data
• Vector Bosons and Jets in Proton Collisions
• Single Photon Production at Hadron Colliders at NNLO QCD with Realistic Photon Isolation
• Measurements of triple-differential cross sections for inclusive isolated-photon+jet events in pp collisions at $\sqrt{s}=$ 8 TeV
• Gravitational mass of relativistic matter and antimatter
• Transversity Asymmetries
• Recent QCD results from the Tevatron
• High p_T Direct Photon-Hadron Correlations Using the PHENIX Detector