Production of a Prompt Photon in Association with Charm at Next-to-Leading Order in QCD

Abstract

A second order, $O({\alpha }_s^2)$, calculation in perturbative quantum chromodynamics of the two particle inclusive cross section is presented for the reaction $p+\bar{p}\to \gamma +c+X$ for large values of the transverse momentum of the prompt photon and charm quark. The combination of analytic and Monte Carlo integration methods used here to perform phase-space integrations facilitates imposition of photon isolation restrictions and other selections of relevance in experiments. Differential distributions are provided for various observables. Positive correlations in rapidity are predicted.

27 pages in RevTex plus 14 figures in one compressed PS file

References in corpus (3)

• Global QCD Analysis and the CTEQ Parton Distributions
• Breakdown of Conventional Factorization for Isolated Photon Cross Sections
• Analytic Calculation of Prompt Photon plus Associated Heavy Flavor at Next-to-Leading Order in QCD

Cited by in corpus (16)

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• Theory of hard photoproduction
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• x-Dependent Polarized Parton Distributions
• Photon Plus Jet Cross Sections in Deep Inelastic ep Collisions at Order O(alpha^2 alpha_s)
• Associated production of prompt photons and heavy quarks in off-shell gluon-gluon fusion
• Photon-tagged heavy meson production in high energy nuclear collisions
• Analytic Calculation of Prompt Photon plus Associated Heavy Flavor at Next-to-Leading Order in QCD
• Measurement of the Associated $\gamma +{\mu }^{\pm }$ Production Cross Section in $p\bar{p}$ Collisions at $\sqrt{s}=1.8$ TeV
• Rapidity Correlations and $\Delta G$ from Prompt Photon plus Jet Production in Polarized $pp$ Collisions
• Conatraints on $\Delta G$ from Prompt Photon plus Jet Production at HERA-$\vec{N}$
• Spin Dependence of Associated Production of a Prompt Photon and a Charm Quark at Next-to-Leading Order in QCD
• Cross Section and Heavy Quark Composition of Photon+Muon Events Produced in ppbar Collisions