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arXiv · hep-ph/0703113

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

J. Campbell·F. Maltoni·F. Tramontano
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Abstract

We calculate the cross section for hadroproduction of a pair of heavy quarks in a 3S1 color-singlet state at next-to-leading order in QCD. This corresponds to the leading contribution in the NRQCD 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 both at the Tevatron and at the LHC. The total decay rate of a 3S1 into hadrons at NLO is also computed, confirming for the first time the result obtained by Mackenzie and Lepage in 1981.

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J. Campbell, F. Maltoni, F. Tramontano. 2007-03-12. QCD corrections to J/psi and Upsilon production at hadron colliders. https://doi.org/10.1103/physrevlett.98.252002

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