Charmed meson production based on dipole transverse momentum representation in high energy hadron-hadron collisions available at the LHC

TL;DR

This paper analyzes D-meson production in high-energy proton-proton collisions at the LHC using the dipole approach in momentum space, providing predictions that align with experimental data and emphasizing the role of nonlinear QCD effects.

Contribution

The study introduces a dipole transverse momentum representation for D-meson production, incorporating nonlinear QCD dynamics and comparing predictions with LHC experimental results.

Findings

Predictions match ALICE and LHCb measurements across rapidity bins.

Nonlinear QCD effects are significant in high-energy D-meson production.

Dipole approach effectively describes transverse momentum distributions.

Abstract

The production of $D$-mesons in high-energy $pp$ collisions at the LHC kinematic regime is analyzed with the dipole approach in the momentum representation. We present predictions for the $D$-meson differential cross section in terms of the transverse momentum and rapidity distributions taking into account the nonlinear behavior of the QCD dynamics. Comparison between our results and the corresponding experimental measurements reported by the ALICE and LHCb Collaborations in different rapidity bins is performed. We show that the $D$-meson production in the high energy limit can be properly addressed by using the QCD dipole transverse momentum distributions.