TY - JOUR
T1 - One-loop Parke-Taylor factors for quadratic propagators from massless scattering equations
AU - Gomez, Humberto
AU - Lopez-Arcos, Cristhiam
AU - Talavera, Pedro
PY - 2017
Y1 - 2017
N2 - 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.
AB - 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.
KW - Differential and Algebraic Geometry
KW - Scattering Amplitudes
KW - Superstrings and Heterotic Strings
U2 - 10.1007/jhep10(2017)175
DO - 10.1007/jhep10(2017)175
M3 - Journal article
AN - SCOPUS:85034450488
SN - 1126-6708
VL - 2017
JO - Journal of High Energy Physics (Online)
JF - Journal of High Energy Physics (Online)
IS - 10
M1 - 175
ER -