The Feynman-Schwinger (world-line) representation in perturbative QCD

Details The Feynman-Schwinger (world-line) representation in perturbative QCD The Feynman-Schwinger (world-line) representation in perturbative QCD

2002-01-02

arxiv.org/abs/hep-ph/0201005v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pages Latex; to appear in the Michael Marinov Memorial Volume, "Multiple facets of quantization and supersymmetry", Eds. M.

Scientific paper

The proper time path integral representation is derived explicitly for an arbitrary $n$-point amplitude in QCD. In the standard perturbation theory the formalism allows to sum up the leading subseries, e.g. yielding double-logarithm Sudakov asymptotics for form factors. Correspondence with the standard perturbation theory is established and connection to the Bern-Kosower-Strassler method is illustrated.

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