Browsing by Author "Talavera, Pedro"
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One-loop Parke-Taylor factors for quadratic propagators from massless scattering equations
Gomez, Humberto; Lopez-Arcos, Cristhiam; Talavera, Pedro (Springer Verlag, 2017-10-01)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 ...