Color-octet quarkonia production. II

Abstract
We calculate the lowest order hadronic cross sections for producing colored heavy quark-antiquark pairs in L=S=0 and L=S=1 configurations. Such QQ¯[S0(8)1] and QQ¯[PJ(8)3] states hadronize into ψQ quarkonia at the same order in the NRQCD velocity expansion as previously considered QQ¯[S1(8)3] pairs. Their contributions to prompt ψ and ϒ production at the Fermilab Tevatron bring the shapes of theoretical transverse momentum distributions into line with recent CDF measurements. We find that the best fit values for the linear combinations of QQ¯[S0(8)1] and QQ¯[PJ(8)3] long distance matrix elements which can be extracted from the data are generally consistent with NRQCD scaling rules.

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