Sudakov representation of the Cachazo-He-Yuan scattering equations formalism

  title={Sudakov representation of the Cachazo-He-Yuan scattering equations formalism},
  author={Grigorios Chachamis and Diego Medrano Jim{\'e}nez and Agust́ın Sabio Vera and Miguel Angel Vazquez-Mozo},
  journal={Journal of High Energy Physics},
A bstractWe show that the use of Sudakov variables greatly simplifies the study of the solutions to the scattering equations in the Cachazo-He-Yuan formalism. We work in the center-of-mass frame for the two incoming particles, which partially fixes the SL(2, ℂ) redundancy in the integrand defining the scattering amplitudes, the remaining freedom translates into a global shift in the azimuthal angle of the outgoing particles. Studying four- and five-particle amplitudes, we see how an appropriate… Expand
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