Gravity loop integrands from the ultraviolet

@article{Edison2021GravityLI,
  title={Gravity loop integrands from the ultraviolet},
  author={Alex Edison and Enrico Herrmann and Julio Parra-Martinez and Jaroslav Trnka},
  journal={SciPost Physics},
  year={2021}
}
We demonstrate that loop integrands of (super-)gravity scattering amplitudes possess surprising properties in the ultraviolet (UV) region. In particular, we study the scaling of multi-particle unitarity cuts for asymptotically large momenta and expose an improved UV behavior of four-dimensional cuts through seven loops as compared to standard expectations. For N=8 supergravity, we show that the improved large momentum scaling combined with the behavior of the integrand under BCFW… 

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