Non-perturbative corrections to perturbative results pertaining to a four-point Sudakov process in QCD

Details Non-perturbative corrections to perturbative results pertaining to a four-point Sudakov process in QCD Non-perturbative corrections to perturbative results pertaining to a four-point Sudakov process in QCD

2004-10-03

arxiv.org/abs/hep-ph/0410039v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pages, 2 figures

Scientific paper

Within the framework of the Fock-Feynman-Schwinger (equivalently, worldline) casting of QCD a four-point process, mediated by a closed quark loop, is studied in the Sudakov kinematical region, first perturbatively and subsequently with the inclusion of non-perturbative contributions through the use of the stochastic vacuum model. Deformations of the, first order, perturbative results are determined. Finally, the resummation of the leading logarithmic terms is performed and physical implications of the result are discussed.

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