J/psi production at the Tevatron and HERA: the effect of kT smearing
Abstract
We study the effects of intrinsic transverse momentum smearing on J/psi production both at the Tevatron and at HERA. For the case of large-pT J/psi production at the Tevatron, the effects due to kT smearing are mild. On the other hand, inelastic J/psi photoproduction at HERA is very sensitive to the kT smearing and, in fact, with a reasonable value of <kT> it is possible to resolve the large-z discrepancy seen by comparing non-relativistic QCD (NRQCD) predictions with the HERA data. We conclude that, with the present kinematic cuts, photoproduction at HERA is not a good test of NRQCD.
Turn this paper into a full lesson
ArcXiv compiles a staged curriculum from this paper: 8-12 lessons across beginner → advanced, synthesised section guides, visuals, flashcards, a quiz, exercises, and on-demand deep dives per section. Grounded in the abstract, never invented.