Non-relativistic effective theory for Quarkonium Production in Hadron Collisions

Details Non-relativistic effective theory for Quarkonium Production in Hadron Collisions Non-relativistic effective theory for Quarkonium Production in Hadron Collisions

1997-03-26

arxiv.org/abs/hep-ph/9703429v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

48 pages, 9 figures, LaTeX, myssi.sty (provided)

Scientific paper

I review recent progress in understanding inclusive quarkonium production in hadron collisions. The first part focuses on non-relativistic QCD as an effective theory. I discuss its differences from and similarities with effective theories describing bound states of a single heavy quark, as far as matching calculations beyond tree-level and power counting are concerned. The second part summarizes predictions for charmonium and bottomonium production at collider and fixed target experiments and their comparison with data. The emphasis here is on novel signatures due to color octet production, polarization of quarkonia and the $\chi_1/\chi_2$ ratio in fixed target collisions.

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