NLO calculations of the exclusive processes in pQCD
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
We present a generally applicable reduction formalism which makes it possible to express an arbitrary tensor and scalar one-loop Feynman integral, with N external lines and massless propagators, in terms of a basic set of eight fundamental scalar Feynman integrals with 2, 3, and 4 external lines, for arbitrary external kinematics. The formalism is particularly suitable for the NLO calculations of exclusive processes at large momentum transfer in pQCD, where all previously developed reduction methods fail due to the presence of collinear external on-shell lines.
Cite
@article{arxiv.hep-ph/0304255,
title = {NLO calculations of the exclusive processes in pQCD},
author = {G. Duplancic and B. Nizic},
journal= {arXiv preprint arXiv:hep-ph/0304255},
year = {2007}
}
Comments
4 pages; talk given at the 38th Rencontres de Moriond, QCD and Hadronic Interactions, Les Arcs, France, 22-29 March 2003