Likelihood equations and scattering amplitudes

@article{Sturmfels2021LikelihoodEA,
  title={Likelihood equations and scattering amplitudes},
  author={Bernd Sturmfels and Simon Telen},
  journal={Algebraic Statistics},
  year={2021}
}
We relate scattering amplitudes in particle physics to maximum likelihood estimation for discrete models in algebraic statistics. The scattering potential plays the role of the log-likelihood function, and its critical points are solutions to rational function equations. We study the ML degree of low-rank tensor models in statistics, and we revisit physical theories proposed by Arkani-Hamed, Cachazo and their collaborators. Recent advances in numerical algebraic geometry are employed to compute… 

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