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Calculation of 1-loop Hexagon Amplitudes in the Yukawa Model

T. Binoth·J. P. Guillet·G. Heinrich·C. Schubert
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Abstract

We calculate a class of one-loop six-point amplitudes in the Yukawa model. The construction of multi-particle amplitudes is done in the string inspired formalism and compared to the Feynman diagrammatic approach. We show that there exists a surprisingly efficient way of calculating such amplitudes by using cyclic identities of kinematic coefficients and discuss in detail cancellation mechanisms of spurious terms. A collection of formulas which are useful for the calculation of massless hexagon amplitudes is given.

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T. Binoth, J. P. Guillet, G. Heinrich, C. Schubert. 2001-06-21. Calculation of 1-loop Hexagon Amplitudes in the Yukawa Model. https://doi.org/10.1016/s0550-3213(01)00436-9

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