Quarkonium Production at the Tevatron through Soft Colour Interactions

Abstract

The direct charmonium and bottomonium production rate observed at high-pt in pp-bar collisions at the Tevatron is factors of ten larger than predictions based on conventional perturbative QCD. We show that this excess can be accounted for by our model for soft colour interactions, previously introduced to describe in a novel way the large rapidity gap events observed at HERA.

8 pages, 3 figures, RevTeX

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