Associated photon and heavy quark production at high energy within k_T-factorization

TL;DR

This paper investigates prompt photon and heavy quark production at high energies using the k_T-factorization approach, providing predictions aligned with experimental data and extending to LHC energies.

Contribution

It applies the k_T-factorization framework with off-shell amplitudes and unintegrated parton densities to study associated photon and heavy quark production.

Findings

Predictions agree with D0 and CDF data

Extended analysis to LHC energies

Demonstrated effectiveness of k_T-factorization approach

Abstract

In the framework of the k_T-factorization approach, the production of prompt photons in association with a heavy (charm or beauty) quarks at high energies is studied. The consideration is based on the O(\alpha \alpha_s^2) off-shell amplitudes of gluon-gluon fusion and quark-(anti)quark interaction subprocesses. The unintegrated parton densities in a proton are determined using the Kimber-Martin-Ryskin prescription. Our numerical predictions are compared with the D0 and CDF experimental data. Also we extend our results to LHC energies.