Corpus ID: 119257935

A 'Twistor String' Inspired Formula For Tree-Level Scattering Amplitudes in N=8 SUGRA

  title={A 'Twistor String' Inspired Formula For Tree-Level Scattering Amplitudes in N=8 SUGRA},
  author={F. Cachazo and Yvonne Geyer},
  journal={arXiv: High Energy Physics - Theory},
  • F. Cachazo, Yvonne Geyer
  • Published 2012
  • Physics
  • arXiv: High Energy Physics - Theory
  • We propose a new formulation of the complete tree-level S-matrix of N = 8 supergravity. The new formula for n particles in the k R-charge sector is an integral over the Grassmannian G(2,n) and uses the Veronese map into G(k,n). The image of a point in G(2,n) is required to be in the “complement” of a 2|8-plane thus making the SU(8) R-symmetry manifest. The integrand is the ratio of two determinants. The numerator is an analog of Hodges’ recent determinant formula for MHV amplitudes. The… CONTINUE READING
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