Note on New KLT relations

Details Note on New KLT relations Note on New KLT relations

2010-08-10

arxiv.org/abs/1008.1626v2

JHEP 1010:109,2010

Physics

High Energy Physics

High Energy Physics - Theory

15 Pages; v2: minor corrections

Scientific paper

10.1007/JHEP10(2010)109

In this short note, we present two results about KLT relations discussed in recent several papers. Our first result is the re-derivation of Mason-Skinner MHV amplitude by applying the S_{n-3} permutation symmetric KLT relations directly to MHV amplitude. Our second result is the equivalence proof of the newly discovered S_{n-2} permutation symmetric KLT relations and the well-known S_{n-3} permutation symmetric KLT relations. Although both formulas have been shown to be correct by BCFW recursion relations, our result is the first direct check using the regularized definition of the new formula.

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