Six-Point One-Loop N=8 Supergravity NMHV Amplitudes and their IR behaviour

Details Six-Point One-Loop N=8 Supergravity NMHV Amplitudes and their IR behaviour Six-Point One-Loop N=8 Supergravity NMHV Amplitudes and their IR behaviour

2005-03-11

arxiv.org/abs/hep-th/0503102v2

Phys.Lett.B621:183-194,2005

Physics

High Energy Physics

High Energy Physics - Theory

14 pages; Minor typographic errors corrected

Scientific paper

10.1016/j.physletb.2005.05.071

We present compact formulas for the box coefficients of the six-point NMHV one-loop amplitudes in N=8 supergravity. We explicitly demonstrate that the corresponding box integral functions, with these coefficients, have the complete IR singularities expected of the one-loop amplitude. This is strong evidence for the conjecture that N=8 one-loop amplitudes may be expressed in terms of scalar box integral functions. This structure, although unexpected from a power counting viewpoint, is analogous to the structure of N=4 super-Yang-Mills amplitudes. The box-coefficients match the tree amplitude terms arising from recursion relations.

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