From 4d ambitwistor strings to on shell diagrams and back

Farrow, Joseph A.; Lipstein, Arthur E.

doi:10.1007/jhep07(2017)114

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Authors

Mr Joseph Farrow joseph.a.farrow@durham.ac.uk
Combined Role

Dr Arthur Lipstein arthur.lipstein@durham.ac.uk
Associate Professor

Abstract

We investigate the relation between 4d ambitwistor string theory and on-shell diagrams for planar N = 4 super-Yang-Mills and N = 8 supergravity, and deduce several new results about their scattering amplitudes at tree-level and 1-loop. In particular, we derive new Grassmannian integral formulae for tree-level amplitudes and obtain new worldsheet formulae for 1-loop amplitudes which are manifestly supersymmetric and supported on scattering equations refined by MHV degree.

Citation

Farrow, J. A., & Lipstein, A. E. (2017). From 4d ambitwistor strings to on shell diagrams and back. Journal of High Energy Physics, 2017(7), Article 114. https://doi.org/10.1007/jhep07%282017%29114

Journal Article Type	Article
Acceptance Date	Jul 7, 2017
Online Publication Date	Jul 25, 2017
Publication Date	Jul 25, 2017
Deposit Date	Aug 1, 2017
Publicly Available Date	Aug 1, 2017
Journal	Journal of High Energy Physics
Print ISSN	1126-6708
Publisher	Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Peer Reviewed	Peer Reviewed
Volume	2017
Issue	7
Article Number	114
DOI	https://doi.org/10.1007/jhep07%282017%29114

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Copyright Statement
© The Author(s) 2017 Article funded by SCOAP3. Open Access. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.