Measurement of the differential photon+ c-jet cross section and the ratio of differential photon+ c and photon+ b cross sections in proton-antiproton collisions at sqrt(s) = 1.96 TeV

Abstract

We present measurements of the differential cross section $d\sigma /d{p}_T^{\gamma }$ for the associated production of a $c$-quark jet and an isolated photon with rapidity $|y^{\gamma }|<1.0$ and transverse momentum $30<p_T^{\gamma }<300$ GeV. The $c$-quark jets are required to have $|y^{jet}|<1.5$ and $p_T^{jet}>15$ GeV. The ratio of differential cross sections for photon+ c and photon+ b production as a function of $p_T^{\gamma }$ is also presented. The results are based on data corresponding to an integrated luminosity of 8.7 fb${}^{-1}$ recorded with the D0 detector at the Fermilab Tevatron $p\bar{p}$ Collider at $\sqrt{s}=$1.96 TeV. The obtained results are compared to next-to-leading order perturbative QCD calculations using various parton distribution functions, to predictions based on the $k_T$-factorization approach, and to predictions from the Sherpa and Pythia Monte Carlo event generators.

arXiv commentSubmitted to Phys. Lett. B

References in corpus (24)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Parton distributions for the LHC
• Event generation with SHERPA 1.1
• The Upgraded D0 Detector
• Unintegrated parton distributions
• The two cutoff phase space slicing method
• The 3-, 4-, and 5-flavor NNLO Parton from Deep-Inelastic-Scattering Data and at Hadron Colliders
• Hard photon production and matrix-element parton-shower merging
• Observation of double charm production involving open charm in pp collisions at $\sqrt{s}$=7 TeV
• The Charm Parton Content of the Nucleon
• The Layer 0 Inner Silicon Detector of the D0 Experiment
• Design and Implementation of the New D0 Level-1 Calorimeter Trigger
• b-Jet Identification in the D0 Experiment
• Direct Photon Production in Association With A Heavy Quark At Hadron Colliders
• Flavor Asymmetry of the Nucleon Sea and the Five-Quark Components of the Nucleons
• Measurement of photon+b+X and photon+c+X production cross sections in ppbar collisions at sqrt(s)=1.96 TeV
• Measurement of D*+/- meson production in jets from pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
• Measurement of the photon$+b$-jet production differential cross section in $p\bar{p}$ collisions at $\sqrt{s}=1.96~\TeV$
• Prompt photon hadroproduction at high energies in the k_T-factorization approach
• Prompt photon and associated heavy quark production at hadron colliders with kt-factorization
• Associated production of prompt photons and heavy quarks in off-shell gluon-gluon fusion
• New Results in Light-Front Phenomenology

Cited by in corpus (29)

• CT14 Intrinsic Charm Parton Distribution Functions from CTEQ-TEA Global Analysis
• Intrinsic Charm Parton Distribution Functions from CTEQ-TEA Global Analysis
• Double parton interactions in photon + 3 jet and photon + b/c jet + 2 jet events in ppbar collisions at sqrt{s}=1.96 TeV
• Searching for intrinsic charm in the proton at the LHC
• A direct probe of the intrinsic charm content of the proton
• Search for intrinsic charm in vector boson production accompanied by heavy flavor jets
• Measurement of the cross section for direct-photon production in association with a heavy quark in $p\bar{p}$ collisions at $\sqrt{s}$ = 1.96 TeV
• The impact of the intrinsic charm quark content of the proton on differential $\gamma +c$ cross section
• Measurement of associated production of Z bosons with charm quark jets in ppbar collisions at sqrt(s)=1.96 TeV
• Probing proton intrinsic charm in photon or Z boson production accompanied by heavy jets at LHC
• Measurement of differential cross sections of isolated-photon plus heavy-flavour jet production in pp collisions at $\sqrt{s}=8$ TeV using the ATLAS detector
• Prompt photon production and photon-jet correlations at the LHC
• The Physics of Heavy Quark Distributions in Hadrons: Collider Tests
• Measurement of the $W+b$-jet and $W+c$-jet differential production cross sections in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV
• Vector Bosons and Jets in Proton Collisions
• Parton distribution functions and constraints on the intrinsic charm content of the proton using BHPS approach
• An extended study of the prompt photon photoproduction at HERA with $k_T$-factorization
• Measurement of the differential $\gamma +2b$-jet cross section and the ratio $\sigma$($\gamma +2b$-jets)/$\sigma$($\gamma +b$-jet) in $p\bar{p}$ collisions at $\sqrt{s}$=1.96 TeV
• Prompt photon in association with a heavy-quark jet in Pb-Pb collisions at the LHC
• The impact of intrinsic charm on the parton distribution functions
• Review of physics results from the Tevatron: QCD physics
• The uncertainty of parton distribution functions due to physical observables in a global analysis
• Nucleon structure and hard p-p processes at high energies
• Impact of Beauty and Charm H1-ZEUS Combined Measurements on PDFs and Determination of the Strong Coupling
• Prompt production of D mesons with ALICE at the LHC
• Impact of Charm H1-ZEUS Combined data and Determination of the Strong Coupling in Two Different Schemes
• Associated photon and heavy quark production at high energy within k_T-factorization
• Novel Heavy-Quark Physics Phenomena
• Proton structure from hard p-p processes at high energies