@article{5b228465016d43dfa925f75b7aeccab0,
title = "Threshold expansion of the g g (q over(q, -)) → over(QQ, -) + X cross section at O (αs 4)",
abstract = "We derive the complete set of velocity-enhanced terms in the expansion of the total cross section for heavy-quark pair production in hadronic collisions at next-to-next-to-leading order. Our expression takes into account the effects of soft-gluon emission as well as that of potential-gluon exchanges. We prove that there are no enhancements due to subleading soft-gluon couplings multiplying the leading Coulomb singularity.",
keywords = "NNLO, Threshold expansion, Top quark, Total inclusive cross section",
author = "Martin Beneke and Michal Czakon and Pietro Falgari and Alexander Mitov and Christian Schwinn",
note = "Funding Information: A.M. would like to thank K. Melnikov and G. Sterman for very insightful discussions. The work of M.B. is supported by the DFG Sonderforschungsbereich/Transregio 9 “Computergest{\"u}tzte Theoretische Teilchenphysik” . The work of M.C. is supported by the Heisenberg and by the Gottfried Wilhelm Leibniz programmes of the Deutsche Forschungsgemeinschaft . The work of A.M. is supported by a fellowship from the US LHC Theory Initiative through NSF grant PHY-0705682 as well as by NSF grant PHY-0653342 . The work of P.F. is supported in part by the grant “Premio Morelli-Rotary 2009” of the Rotary Club Bergamo . ",
year = "2010",
month = jul,
day = "5",
doi = "10.1016/j.physletb.2010.05.038",
language = "English",
volume = "690",
pages = "483--490",
journal = "Physics Letters B",
issn = "0370-2693",
publisher = "Elsevier B.V.",
number = "5",
}