One-loop Parke-Taylor factors for quadratic propagators from massless scattering equations

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  • Humberto Gomez
  • Cristhiam Lopez-Arcos
  • Pedro Talavera

In this paper we reconsider the Cachazo-He-Yuan construction (CHY) of the so called scattering amplitudes at one-loop, in order to obtain quadratic propagators. In theories with colour ordering the key ingredient is the redefinition of the Parke-Taylor factors. After classifying all the possible one-loop CHY-integrands we conjecture a new one-loop amplitude for the massless Bi-adjoint Φ3 theory. The prescription directly reproduces the quadratic propagators of the traditional Feynman approach.

Original languageEnglish
Article number175
JournalJournal of High Energy Physics
Volume2017
Issue number10
ISSN1126-6708
DOIs
Publication statusPublished - 2017

    Research areas

  • Differential and Algebraic Geometry, Scattering Amplitudes, Superstrings and Heterotic Strings

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