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From 4d ambitwistor strings to on shell diagrams and back

Farrow, Joseph A.; Lipstein, Arthur E.

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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 Mar 29, 2024
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.






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