Gauge Theory Amplitudes, Scalar Graphs and Twistor Space

  title={Gauge Theory Amplitudes, Scalar Graphs and Twistor Space},
  author={Valentin V. Khoze},
  journal={arXiv: High Energy Physics - Theory},
  • V. Khoze
  • Published 30 August 2004
  • Physics
  • arXiv: High Energy Physics - Theory
We discuss a remarkable new approach initiated by Cachazo, Svrcek and Witten for calculating gauge theory amplitudes. The formalism amounts to an effective scalar perturbation theory which in many cases offers a much simpler alternative to the usual Feynman diagrams for deriving $n$-point amplitudes in gauge theory. At tree level the formalism works in a generic gauge theory, with or without supersymmetry, and for a finite number of colours. There is also a growing evidence that the formalism… 

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