Quantitative Tests of Color Evaporation: Charmonium Production
J. F. Amundson, O. J. P. Eboli, E. M. Gregores, F. Halzen
Abstract
The color evaporation model simply states that charmonium production is described by the same dynamics as D D production, i.e., by the formation of a colored c c pair. Its color happens to be bleached by soft final-state interactions. We show that the model gives a complete picture of charmonium production including low-energy production by proton, photon and antiproton beams, and high-energy production at the Tevatron and HERA. Our analysis includes the first next-to-leading-order calculation in the color evaporation model.
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