Analytic Structure of Three-Mass Triangle Coefficients

Details Analytic Structure of Three-Mass Triangle Coefficients Analytic Structure of Three-Mass Triangle Coefficients

2007-09-13

arxiv.org/abs/0709.2086v3

JHEP0804:038,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

22 pages; v3: NMHV n=point expression added. 7 point expression removed

Scientific paper

10.1088/1126-6708/2008/04/038

``Three-mass triangles'' are a class of integral functions appearing in one-loop gauge theory amplitudes. We discuss how the complex analytic properties and singularity structures of these amplitudes can be combined with generalised unitarity techniques to produce compact expressions for three-mass triangle coefficients. We present formulae for the N=1 contributions to the n-point NMHV amplitude.

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