Production of massless charm jets in $pp$ collisions at next-to-leading order of QCD in comparison with CMS data

TL;DR

This paper predicts charm jet production in proton-proton collisions at LHC energies using massless charm quarks at NLO QCD, showing good agreement with CMS data after non-perturbative corrections.

Contribution

It provides NLO QCD predictions for charm jet production with massless charm quarks and compares them with experimental data, including non-perturbative effects.

Findings

K factor close to one depending on scale choice

Non-perturbative corrections improve data agreement

Predictions match CMS charm jet cross sections

Abstract

We present predictions for the inclusive production of charm jets in proton-proton collisions at 2.76 and 5.02 TeV. The charm-quark is considered massless. In this scheme we find that the ratio of the next-to-leading order to the leading order cross section (K factor) is almost equal to one depending essentially on the choice of the renormalization and factorization scale. Adding non-pertubative corrections obtained from Pythia Monte Carlo calculations lead to reasonable agreement with experimental c-jet cross sections obtained by the CMS collaboration.