Integrals for two-loop calculations in massless QCD
- 1 April 1987
- journal article
- Published by AIP Publishing in Journal of Mathematical Physics
- Vol. 28 (4), 945-956
- https://doi.org/10.1063/1.527586
Abstract
Tools that have been developed for the extension of the Sterman–Weinberg formula in two-loop order are presented. They are the essential ingredients for any perturbative two-loop calculation in a massless theory. Introducing dimensional regularization, this paper deals with poles up to fourth order in the dimensional parameters. The virtual two-loop integrations as well as real ones over phase space are studied.Keywords
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