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arXiv · hep-th/9904026

Perturbative Gravity from QCD Amplitudes

Z. Bern·A. K. Grant
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Abstract

We demonstrate that QCD gluon amplitudes can be used to construct a Lagrangian for gravity. This procedure makes use of perturbative `squaring' relations between gravity and gauge theory that follow from string theory. We explicitly carry out the construction for up to five-point interactions and discuss a set of field variables in the Einstein-Hilbert Lagrangian for interpreting the Lagrangian obtained from QCD. A spin-off from our analysis is that it can be used to provide simpler tree-level gravity Feynman rules than for conventional gauges.

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Z. Bern, A. K. Grant. 1999-04-15. Perturbative Gravity from QCD Amplitudes. https://doi.org/10.1016/s0370-2693(99)00524-9

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