Prompt photon hadroproduction in the k_T-factorization approach

TL;DR

This paper investigates prompt photon production at high energies using the k_T-factorization approach, calculating relevant amplitudes and comparing theoretical predictions with experimental data from the Tevatron.

Contribution

It introduces a calculation of the photon production amplitude in the k_T-factorization framework and compares it with collider data, providing new insights into high-energy photon production.

Findings

Theoretical predictions align with Tevatron data within uncertainties.

The approach offers a viable alternative to collinear factorization methods.

Results improve understanding of gluon dynamics in high-energy collisions.

Abstract

We study the production of prompt photons at high energy in the framework of the k_T-factorization approach. The amplitude for production of a single photon associated with quark pair in the fusion of two off-shell gluons is calculated. Theoretical results are compared with the Tevatron data.