Abstract
We calculate the cross section for hadroproduction of a pair of heavy quarks in a color-singlet state at next-to-leading order in QCD. This corresponds to the leading contribution in the nonrelativistic QCD expansion for and production. The higher-order corrections have a large impact on the distributions, enhancing the production at high at both the Fermilab Tevatron and the CERN Large Hadron Collider. The total decay rate of a into hadrons at next-to-leading order is also computed, confirming for the first time the result obtained by Mackenzie and Lepage in 1981.
- Received 6 March 2007
DOI:https://doi.org/10.1103/PhysRevLett.98.252002
©2007 American Physical Society