Now showing items 1-3 of 3
Cross-ratio identities and higher-order poles of CHY-integrand
(Springer Verlag, 2016-09-01)
The evaluation of generic Cachazo-He-Yuan(CHY)-integrands is a big challenge and efficient computational methods are in demand for practical evaluation. In this paper, we propose a systematic decomposition algorithm by ...
Elliptic scattering equations
(Springer Verlag, 2016-06-01)
Recently the CHY approach has been extended to one loop level using elliptic functions and modular forms over a Jacobian variety. Due to the difficulty in manipulating these kind of functions, we propose an alternative ...
CHY-graphs on a torus
(Springer Verlag, 2016-10-12)
Recently, we proposed a new approach using a punctured Elliptic curve in the CHY framework in order to compute one-loop scattering amplitudes. In this note, we further develop this approach by introducing a set of connectors, ...