Dilepton Rapidity Distribution in the Drell-Yan Process at Next-to-Next-to-Leading Order in QCD
Open Access
- 31 October 2003
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 91 (18) , 182002
- https://doi.org/10.1103/physrevlett.91.182002
Abstract
We compute the rapidity distribution of the virtual photon produced in the Drell-Yan process through next-to-next-to-leading order in perturbative QCD. We introduce a powerful new method for calculating differential distributions in hard scattering processes. This method is based upon a generalization of the optical theorem; it allows the integration-by-parts technology developed for multiloop diagrams to be applied to noninclusive phase-space integrals, and permits a high degree of automation. We apply our results to the analysis of fixed-target experiments.Keywords
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