| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8192951 | Physics Letters B | 2010 | 8 Pages |
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.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Martin Beneke, Michal Czakon, Pietro Falgari, Alexander Mitov, Christian Schwinn,