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  Berends-Giele recursions and the BCJ duality in superspace and components

Mafra, C. R., & Schlotterer, O. (2016). Berends-Giele recursions and the BCJ duality in superspace and components. Journal of high energy physics: JHEP, 2016(03): 097. doi:10.1007/JHEP03(2016)097.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-18AD-B Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-5F6E-6
Genre: Journal Article

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1510.08846.pdf (Preprint), 237KB
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 Creators:
Mafra, Carlos R.1, Author              
Schlotterer, Oliver2, Author              
Affiliations:
1Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, escidoc:24014              
2Quantum Gravity and Unified Theories, AEI Golm, MPI for Gravitational Physics, Max Planck Society, escidoc:24014              

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Free keywords: High Energy Physics - Theory, hep-th
 Abstract: The recursive method of Berends and Giele to compute tree-level gluon amplitudes is revisited using the framework of ten-dimensional super Yang--Mills. First we prove that the pure spinor formula to compute SYM tree amplitudes derived in 2010 reduces to the standard Berends--Giele formula from the 80s when restricted to gluon amplitudes and additionally determine the fermionic completion. Second, using BRST cohomology manipulations in superspace, alternative representations of the component amplitudes are explored and the Bern--Carrasco--Johansson relations among partial tree amplitudes are derived in a novel way. Finally, it is shown how the supersymmetric components of manifestly local BCJ-satisfying tree-level numerators can be computed in a recursive fashion.

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 Dates: 2015-10-292016
 Publication Status: Published in print
 Pages: harvmac TeX, 24 pages
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1510.08846
DOI: 10.1007/JHEP03(2016)097
 Degree: -

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Title: Journal of high energy physics : JHEP
Source Genre: Journal
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Publ. Info: Bologna, Italy : Società italiana di fisica
Pages: - Volume / Issue: 2016 (03) Sequence Number: 097 Start / End Page: - Identifier: ISSN: 1126-6708
CoNE: http://pubman.mpdl.mpg.de/cone/journals/resource/111021927548002