# Taming tree amplitudes in general relativity

@article{Benincasa2007TamingTA, title={Taming tree amplitudes in general relativity}, author={Paolo Benincasa and Camille Boucher-Veronneau and Freddy Cachazo}, journal={Journal of High Energy Physics}, year={2007}, volume={2007}, pages={057-057} }

We give a proof of BCFW recursion relations for all tree-level amplitudes of gravitons in General Relativity. The proof follows the same basic steps as in the BCFW construction and it is an extension of the one given for next-to-MHV amplitudes by one of the authors and P. Svrcek in hep-th/0502160. The main obstacle to overcome is to prove that deformed graviton amplitudes vanish as the complex variable parameterizing the deformation is taken to infinity. This step is done by first proving an…

## 134 Citations

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