Gluon TMDs in quarkonium production

Abstract

I report on our investigations into the impact of (un)polarized transverse momentum dependent parton distribution functions (TMD PDFs or TMDs) for gluons at hadron colliders, especially at A Fixed Target Experiment at the LHC (AFTER@LHC). In the context of high energy proton-proton collisions, we look at final states with low mass (e.g. ${\eta }_b$) in order to investigate the nonperturbative part of TMD PDFs. We study the factorization theorem for the $q_T$ spectrum of ${\eta }_b$ produced in proton-proton collisions relying on the effective field theory approach, defining the tools to perform phenomenological investigations at next-to-next-to-leading log (NNLL) and next-to-leading order (NLO) accuracy in the perturbation theory. We provide predictions for the unpolarized cross section and comment on the possibility of extracting nonperturbative information about the gluon content of the proton once data at low transverse momentum are available.

arXiv commentProceedings of the Light Cone Conference 2015

References in corpus (6)

• Transverse momentum dependence in gluon distribution and fragmentation functions
• NLO Production and Decay of Quarkonium
• Factorization Theorem For Drell-Yan At Low q_T And Transverse-Momentum Distributions On-The-Light-Cone
• Physics Opportunities of a Fixed-Target Experiment using the LHC Beams
• QCD Corrections to Toponium Production at Hadron Colliders
• Observation potential for eta_b at the Tevatron

Cited by in corpus (10)

• Extraction of partonic transverse momentum distributions from semi-inclusive deep-inelastic scattering, Drell-Yan and Z-boson production
• Gluon and Wilson loop TMDs for hadrons of spin $\le$ 1
• New Observables in Inclusive Production of Quarkonia
• Associated production of a dilepton and a ${\rm Y}(J/\psi )$ at the LHC as a probe of gluon transverse momentum dependent distributions
• A Fixed-Target Programme at the LHC: Physics Case and Projected Performances for Heavy-Ion, Hadron, Spin and Astroparticle Studies
• Gluon TMDs in quarkonium production
• Feasibility Studies for Single Transverse-Spin Asymmetry Measurements at a Fixed-Target Experiment Using the LHC Proton and Lead Beams (AFTER@LHC)
• Predictive power of transverse-momentum-dependent distributions
• Phenomenological NLO analysis of eta(c) production at the LHC in the collider and fixed-target modes
• Heavy-ion Physics at a Fixed-Target Experiment Using the LHC Proton and Lead Beams (AFTER@LHC): Feasibility Studies for Quarkonium and Drell-Yan Production