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New Color Decompositions for Gauge Amplitudes at Tree and Loop Level

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arxiv hep-ph/9910563 v1 pith:2MYKX2YO submitted 1999-11-01 hep-ph

classification hep-ph
keywords amplitudescolordecompositiondecompositionslooptreearbitrarycompact
verification ladder T0 review T1 audit T2 compute T3 formal

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Recently, a color decomposition using structure constants was introduced for purely gluonic tree amplitudes, in a compact form involving only the linearly independent subamplitudes. We give two proofs that this decomposition holds for an arbitrary number of gluons. We also present and prove similar decompositions at one loop, both for pure gluon amplitudes and for amplitudes with an external quark-antiquark pair.

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Forward citations

Cited by 24 Pith papers

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