Two-Loop Four-Gluon Amplitudes in N=4 Super-Yang-Mills

Details Two-Loop Four-Gluon Amplitudes in N=4 Super-Yang-Mills Two-Loop Four-Gluon Amplitudes in N=4 Super-Yang-Mills

1997-02-26

arxiv.org/abs/hep-ph/9702424v3

Phys.Lett. B401 (1997) 273-282

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex, 13 pages, 9 figures, minor changes to signs in eq.(14)

Scientific paper

10.1016/S0370-2693(97)00413-9

Using cutting techniques we obtain the two-loop N=4 super-Yang-Mills helicity amplitudes for four-gluon scattering in terms of scalar integral functions. The N=4 amplitudes are considerably simpler than corresponding QCD amplitudes and therefore provide a testing ground for exploring two-loop amplitudes. The amplitudes are constructed directly in terms of gauge invariant quantities and therefore remain relatively compact throughout the calculation. We also present a conjecture for the leading color four-gluon amplitudes to all orders in the perturbative expansion.

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