Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-10-15
Int.J.Mod.Phys.A12:3887-3897,1997
Physics
High Energy Physics
High Energy Physics - Phenomenology
11 pages, Latex, epsfig, 4 figures. To appear in the proceedings of the Quarkonium Physics Workshop, University of Illinois, C
Scientific paper
10.1142/S0217751X97002048
We present some preliminary results on the next-to-leading order calculation in QCD of quarkonium production cross sections in hadronic collisions. We will show that the NLO total cross sections for $P$-wave states produced at high energy are not reliable, due to the appearance of very large and negative contributions. We also discuss some issues related to the structure of final states in colour-octet production and to high-p_T fragmentation.
Mangano Michelangelo L.
Petrelli Andrea
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