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arXiv · hep-th/9710067

The Structure of the Bern-Kosower Integrand for the N-Gluon Amplitude

Christian Schubert
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Abstract

An ambiguity inherent in the partial integration procedure leading to the Bern-Kosower rules is fixed in a way which preserves the complete permutation symmetry in the scattering states. This leads to a canonical version of the Bern-Kosower representation for the one-loop N - photon/gluon amplitudes, and to a natural decomposition of those amplitudes into permutation symmetric gauge invariant partial amplitudes. This decomposition exhibits a simple recursive structure.

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Christian Schubert. 1997-10-08. The Structure of the Bern-Kosower Integrand for the N-Gluon Amplitude. https://doi.org/10.1007/s100520050311

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