Corpus ID: 237505023

RG of GR from On-shell Amplitudes

  title={RG of GR from On-shell Amplitudes},
  author={Pietro Baratella and Dominik Haslehner and Maximilian Ruhdorfer and Javi Serra and Andreas Weiler},
We study the renormalization group of generic effective field theories that include gravity. We follow the on-shell amplitude approach, which provides a simple and efficient method to extract anomalous dimensions avoiding complications from gauge redundancies. As an invaluable tool we introduce a modified helicity h̃ under which gravitons carry one unit instead of two. With this modified helicity we easily explain old and uncover new nonrenormalization theorems for theories including gravitons… Expand

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