Calculation of 1-loop Hexagon Amplitudes in the Yukawa Model

Details Calculation of 1-loop Hexagon Amplitudes in the Yukawa Model Calculation of 1-loop Hexagon Amplitudes in the Yukawa Model

2001-06-21

arxiv.org/abs/hep-ph/0106243v1

Nucl.Phys. B615 (2001) 385-401

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages Latex

Scientific paper

10.1016/S0550-3213(01)00436-9

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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