New factorization relations for nonlinear sigma model amplitudes

Nov 14, 2018
6 pages
Published in:
  • Phys.Rev.D 99 (2019) 4, 045009
  • Published: Feb 20, 2019
e-Print:

Citations per year

20192020202162
Abstract: (APS)
We obtain novel factorization identities for nonlinear sigma model amplitudes using a new integrand in the Cachazo-He-Yuan double-cover prescription. We find that it is possible to write very compact relations using only longitudinal degrees of freedom. We discuss implications for on shell recursion.
Note:
  • 6 pages, no figures, version to appear in PRD
  • Formal aspects of field theory, field theory in curved space
  • sigma model: nonlinear
  • factorization
  • longitudinal