Quarkonia production and polarization at the hadron colliders

Abstract

This talk presents a review of recent results for quarkonium production at the LHC from ATLAS, CMS, LHCb, and ALICE. Production cross sections for $J/\psi$, $\psi (2S)$, and ${\rm Y}(mS)$, and production ratios for ${\chi }_{c,bJ}$ are found to be in good agreement with predictions from non-relativistic QCD. In contrast, spin-alignment (polarization) measurements seem to disagree with all theoretical predictions. Some other production channels useful for investigating quarkonium hadroproduction mechanisms are also considered.

Proceedings for The Second Annual Conference on Large Hadron Collider Physics

References in corpus (3)

• Measurement of prompt J/psi pair production in pp collisions at sqrt(s) = 7 TeV
• Quarkonium production in the LHC era: a polarized perspective
• Measurement of the production cross-section of $\psi (2S)\to J/\psi (\to {\mu }^{+}{\mu }^{-}){\pi }^{+}{\pi }^{-}$ in $pp$ collisions at $\sqrt{s}=7$ TeV at ATLAS