Quarkonium production and polarisation with early data at ATLAS

TL;DR

This paper discusses the early ATLAS measurements of quarkonium production and polarization at 14 TeV, aiming to test QCD models and improve understanding of quarkonium production mechanisms.

Contribution

It provides an overview of ATLAS's expected performance and capabilities for measuring quarkonium production and polarization at 14 TeV, and assesses how these measurements can distinguish between theoretical models.

Findings

Expected ATLAS rates for quarkonium reconstruction

Ability to separate different production models

Potential to improve understanding of QCD mechanisms

Abstract

One of the first physics results to come out of ATLAS will be an analysis of J/psi and Upsilon production at 14 TeV. I give an overview of the motivation for looking at the theoretical model underlying quarkonium production, ATLAS expected performance and rates for quarkonium reconstruction and ability to separate out various proposed production models with a view to improving our understanding of QCD.