QCD Corrections to J/{psi} and {upsilon} Production at Hadron Colliders

Journal Article · Fri Jun 22 04:00:00 EDT 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.98.252002· OSTI ID:20953303

Campbell, J ^[1]; Maltoni, F ^[2]; Tramontano, F ^[3]

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1. Department of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ (United Kingdom)
2. Center for Particle Physics and Phenomenology (CP3), Universite Catholique de Louvain, B-1348 Louvain-la-Neuve (Belgium)
3. Dipartimento di Scienze Fisiche, Universita di Napoli Federico II, and INFN, Sezione di Napoli, I-80126 Naples (Italy)

We calculate the cross section for hadroproduction of a pair of heavy quarks in a {sup 3}S{sub 1} color-singlet state at next-to-leading order in QCD. This corresponds to the leading contribution in the nonrelativistic QCD expansion for J/{psi} and {upsilon} production. The higher-order corrections have a large impact on the p{sub T} distributions, enhancing the production at high p{sub T} at both the Fermilab Tevatron and the CERN Large Hadron Collider. The total decay rate of a {sup 3}S{sub 1} into hadrons at next-to-leading order is also computed, confirming for the first time the result obtained by Mackenzie and Lepage in 1981.

• OSTI ID: 20953303
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 25 Vol. 98; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

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