Scattering equations and a new factorization for amplitudes. Part I. Gauge theories

dc.contributor.author	Gomez, Humberto
dc.date.accessioned	2019-07-09T22:24:36Z
dc.date.available	2019-07-09T22:24:36Z
dc.date.issued	2019-05-01
dc.description.abstract	In this work we show how a double-cover (DC) extension of the Cachazo, He and Yuan formalism (CHY) can be used to provide a new realization for the factorization of the amplitudes involving gluons and scalar fields. First, we propose a graphic representation for a color-ordered Yang-Mills (YM) and special Yang-Mills-Scalar (YMS) amplitudes within the scattering equation formalism. Using the DC prescription, we are able to obtain an algorithm (integration-rules) which decomposes amplitudes in terms of three-point building-blocks. It is important to remark that the pole structure of this method is totally different to ordinary factorization (which is a consequence of the scattering equations). Finally, as a byproduct, we show that the soft limit in the CHY approach, at leading order, becomes trivial by using the technology described in this paper. © 2019, The Author(s).	en_US
dc.identifier.issn	11266708
dc.identifier.uri	https://repositorio.usc.edu.co/handle/20.500.12421/329
dc.language.iso	en	en_US
dc.publisher	Springer Verlag	en_US
dc.subject	Differential and Algebraic Geometry	en_US
dc.subject	Field Theories in Higher Dimensions	en_US
dc.subject	Scattering Amplitudes	en_US
dc.subject	Topological Strings	en_US
dc.title	Scattering equations and a new factorization for amplitudes. Part I. Gauge theories	en_US
dc.type	Article	en_US

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