One-loop Parke-Taylor factors for quadratic propagators from massless scattering equations
| dc.contributor.author | Gomez, Humberto | |
| dc.contributor.author | Lopez-Arcos, Cristhiam | |
| dc.contributor.author | Talavera, Pedro | |
| dc.date.accessioned | 2019-07-08T22:14:49Z | |
| dc.date.available | 2019-07-08T22:14:49Z | |
| dc.date.issued | 2017-10-01 | |
| dc.description.abstract | 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. © 2017, The Author(s). | en_US |
| dc.identifier.issn | 11266708 | |
| dc.identifier.uri | https://repositorio.usc.edu.co/handle/20.500.12421/276 | |
| dc.language.iso | en | en_US |
| dc.publisher | Springer Verlag | en_US |
| dc.subject | Differential and Algebraic Geometry | en_US |
| dc.subject | Scattering Amplitudes | en_US |
| dc.subject | Superstrings and Heterotic Strings | en_US |
| dc.title | One-loop Parke-Taylor factors for quadratic propagators from massless scattering equations | en_US |
| dc.type | Article | en_US |
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