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Correlation functions of the chiral stress-tensor multiplet in N=4 SYM

Chicherin, D.; Doobary, R.; Eden, B.; Heslop, P.; Korchemsky, G.P.; Mason, L.; Sokatchev, E.

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Authors

D. Chicherin

R. Doobary

B. Eden

G.P. Korchemsky

L. Mason

E. Sokatchev



Abstract

We give a new method for computing the correlation functions of the chiral part of the stress-tensor supermultiplet that relies on the reformulation of N=4 SYM in twistor space. It yields the correlation functions in the Born approximation as a sum of Feynman diagrams on twistor space that involve only propagators and no integration vertices. We use this unusual feature of the twistor Feynman rules to compute the correlation functions in terms of simple building blocks which we identify as a new class of N=4 off-shell superconformal invariants. Making use of the duality between correlation functions and planar scattering amplitudes, we demonstrate that these invariants represent an off-shell generalisation of the on-shell invariants defining tree-level scattering amplitudes in N=4 SYM.

Citation

Chicherin, D., Doobary, R., Eden, B., Heslop, P., Korchemsky, G., Mason, L., & Sokatchev, E. (2015). Correlation functions of the chiral stress-tensor multiplet in N=4 SYM. Journal of High Energy Physics, 2015, Article 198. https://doi.org/10.1007/jhep06%282015%29198

Journal Article Type Article
Acceptance Date Jun 12, 2015
Online Publication Date Jun 29, 2015
Publication Date Jun 29, 2015
Deposit Date Jul 1, 2015
Publicly Available Date Jul 23, 2015
Journal Journal of High Energy Physics
Print ISSN 1126-6708
Publisher Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Peer Reviewed Peer Reviewed
Volume 2015
Article Number 198
DOI https://doi.org/10.1007/jhep06%282015%29198
Keywords Supersymmetric gauge theory, Scattering Amplitudes, Extended Supersymmetry, Superspaces.
Related Public URLs http://arxiv.org/abs/1412.8718

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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/

Copyright Statement
Open Access, © The Authors. Article funded by SCOAP3. 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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