Calculation of Graviton Scattering Amplitudes using String-Based Methods

Details Calculation of Graviton Scattering Amplitudes using String-Based Methods Calculation of Graviton Scattering Amplitudes using String-Based Methods

1994-08-02

arxiv.org/abs/hep-th/9408014v3

Nucl.Phys. B433 (1995) 181-208

Physics

High Energy Physics

High Energy Physics - Theory

25 pages +5 figs. , SWAT-94-37 UCLA/TEP/94/30, Plain TeX. (Typos in eqns. fixed )

Scientific paper

10.1016/0550-3213(94)00385-R

Techniques based upon the string organisation of amplitudes may be used to simplify field theory calculations. We apply these techniques to perturbative gravity and calculate all one-loop amplitudes for four-graviton scattering with arbitrary internal particle content. Decomposing the amplitudes into contributions arising from supersymmetric multiplets greatly simplifies these calculations. We also discuss how unitarity may be used to constrain the amplitudes.

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