Caravel - A C++ Framework for the Computation of Multi-Loop Amplitudes with Numerical Unitarity

Created in September 24, 2020

2020   ·   Amplitudes   ·   Paper

Caravel: A C++ Framework for the Computation of Multi-Loop Amplitudes with Numerical Unitarity

Authors: S. Abreu, J. Dormans, F. Febres Cordero, H. Ita, M. Kraus, B. Page, E. Pascual, M. S. Ruf, V. Sotnikov

Abstract: We present the first public version of Caravel, a C++17 framework for the computation of multi-loop scattering amplitudes in quantum field theory, based on the numerical unitarity method. Caravel is composed of modules for the D-dimensional decomposition of integrands of scattering amplitudes into master and surface terms, the computation of tree-level amplitudes in floating point or finite-field arithmetic, the numerical computation of one- and two-loop amplitudes in QCD and Einstein gravity, and functional reconstruction tools. We provide programs that showcase Caravel’s main functionalities and allow to compute selected one- and two-loop amplitudes.

(Abreu et al., 2021)

References

  1. Comput. Phys. Commun.
    amplitudes.png
    Caravel: A C++ framework for the computation of multi-loop amplitudes with numerical unitarity
    S. Abreu, J. Dormans, F. Febres Cordero, H. Ita, M. Kraus, B. Page, E. Pascual, M. S. Ruf, and V. Sotnikov
    Comput. Phys. Commun., Aug 2021
    DOI arXiv
    N/A Google Scholar citations 70 InspireHEP citations


Enjoy Reading This Article?

Here are some more articles you might like to read next:

  • Measurement of the top-quark pole mass in dileptonic tt+1-jet events at sqrt(s)=13 TeV with the ATLAS experiment
  • Gravitational Bremsstrahlung in Black-Hole Scattering at O(G^3) Quadratic-in-Spin Effects
  • First Look at Quartic-in-Spin Binary Dynamics at Third Post-Minkowskian Order
  • EFTs Across The Universe
  • Spinning Black Hole Scattering at O(G^3S^2) Casimir Terms, Radial Action and Hidden Symmetry