Heavy quarkonium production at the LHC in the framework of NRQCD and parton Reggeization approach

TL;DR

This paper investigates heavy quarkonium production at the LHC using NRQCD and the parton Reggeization approach, comparing theoretical predictions with experimental data and discussing polarization phenomena.

Contribution

It introduces a combined framework of NRQCD and parton Reggeization for heavy quarkonium production and compares predictions with recent collider data.

Findings

Good agreement with ATLAS chi_{c1,c2} production data

Insights into heavy quarkonium polarization behavior

Validation of the combined theoretical approach

Abstract

Heavy quarkonium production in the framework of the nonrelativistic quantum chromodynamics and leading order of the parton Reggeization approach at the Tevatron and LHC Colliders is discussed. The new results, which are reviewed in this report, include the comparison with recent data on chi_{c1,c2} production from ATLAS Collaboration and special discussion of heavy quarkonium polarization issues in the considered framework.