Please use this identifier to cite or link to this item: https://repository.usc.edu.co/handle/20.500.12421/329
Title: Scattering equations and a new factorization for amplitudes. Part I. Gauge theories
Authors: Gomez, Humberto
Keywords: Differential and Algebraic Geometry
Field Theories in Higher Dimensions
Scattering Amplitudes
Topological Strings
Issue Date: 1-May-2019
Publisher: Springer Verlag
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).
URI: https://repository.usc.edu.co/handle/20.500.12421/329
ISSN: 11266708
Appears in Collections:Artículos Científicos



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