Soft-gluon resummation within the framework of heavy quarkonium
hadroproduction is considered. A few selected cases are studied in detail. A
sizeable increase of the cross sections with respect to the next-to-leading
order predictions with central factorization/renormalization scale choice can
generally be observed. Improvements in the dependence of the cross sections on
the two scales, especially when they are kept equal, are also found.Comment: 15 pages, 6 figures, LaTeX2