Prompt J/psi production from Tevatron to LHC

Abstract

Models with essential non-perturbative QCD dynamics and describing Tevatron data on high-$p_{\perp }$ charmonium are extrapolated to give predictions of prompt J/psi production at the LHC. Differences of up to an order of magnitude occurs. An important point is here the treatment of higher order perturbative QCD effects.

Presented at the VIII International Workshop on Hadron Physics (Hadrons 2002), Bento Goncalves, Brazil, 14 - 19 April 2002