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arXiv · hep-ph/9512343

Analytic Calculation of Prompt Photon plus Associated Heavy Flavor at Next-to-Leading Order in QCD

Edmond L. Berger·L. E. Gordon
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Abstract

Contributions through second order, $O(α^2_s)$, in perturbative quantum chromodynamics are calculated analytically for inclusive associated production of a prompt photon and a charm quark at large values of transverse momentum in high energy hadron-hadron collisions. Seven partonic subprocesses contribute at order $α^2_s$. We find important corrections to the lowest order, $O(α_s)$, subprocess $c g \rightarrow γc$. We demonstrate to what extent data from $p +\bar{p}\rightarrow γ+ c + X$ may serve to measure the charm quark density in the nucleon.

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Edmond L. Berger, L. E. Gordon. 1995-12-21. Analytic Calculation of Prompt Photon plus Associated Heavy Flavor at Next-to-Leading Order in QCD. https://doi.org/10.1103/physrevd.54.2279

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