Simplifying the Tree-level Superstring Massless Five-point Amplitude

Details Simplifying the Tree-level Superstring Massless Five-point Amplitude Simplifying the Tree-level Superstring Massless Five-point Amplitude

2009-09-29

arxiv.org/abs/0909.5206v2

JHEP 1001:007,2010

Physics

High Energy Physics

High Energy Physics - Theory

19 pages, harvmac TeX, v2: Fix and add references, fix typos and add (3.16)

Scientific paper

10.1007/JHEP01(2010)007

We use the pure spinor formalism to obtain the supersymmetric massless five-point amplitude at tree-level in a streamlined fashion. We also prove the equivalence of an OPE identity in string theory with a subset of the Bern-Carrasco-Johansson five-point kinematic relations, and demonstrate how the remaining BCJ identities follow from the different integration regions over the open string world-sheet, therefore providing a first principles derivation of the (supersymmetric) BCJ identities.

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