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QCD corrections to J/psi and Upsilon production at hadron colliders

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Campbell, J. Maltoni, Fabio [UCL] Tramontano, F.

We calculate the cross section for hadroproduction of a pair of heavy quarks in a S-3(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(T) distributions, enhancing the production at high p(T) at both the Fermilab Tevatron and the CERN Large Hadron Collider. The total decay rate of a S-3(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.

Document type Article de périodique (Journal article) – Article de recherche
Publication date 2007
Language Anglais
Journal information "Physical Review Letters" - Vol. 98, no. 25 (2007)
Peer reviewed yes
Publisher American Physical Soc (College Pk)
issn 0031-9007
e-issn 1079-7114
Publication status Publié
Affiliation UCL - SC/PHYS - Département de physique
Links
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Bibliographic reference Campbell, J. ; Maltoni, Fabio ; Tramontano, F.. QCD corrections to J/psi and Upsilon production at hadron colliders. In: Physical Review Letters, Vol. 98, no. 25 (2007)
Permanent URL http://hdl.handle.net/2078.1/37558