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  Towards Field Theory Amplitudes From the Cohomology of Pure Spinor Superspace

Mafra, C. R. (2010). Towards Field Theory Amplitudes From the Cohomology of Pure Spinor Superspace. Journal of High Energy Physics, 2010: 096, pp. 1-15. doi:10.1007/JHEP11(2010)096.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0012-C446-9 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0012-C448-5
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1007.3639 (Preprint), 155KB
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 Creators:
Mafra, Carlos R.1, Author              
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1Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24014              

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Free keywords: High Energy Physics - Theory, hep-th
 Abstract: A simple BRST-closed expression for the color-ordered super-Yang-Mills 5-point amplitude at tree-level is proposed in pure spinor superspace and shown to be BRST-equivalent to the field theory limit of the open superstring 5-pt amplitude. It is manifestly cyclic invariant and each one of its five terms can be associated to the five Feynman diagrams which use only cubic vertices. Its form also suggests an empirical method to find superspace expressions in the cohomology of the pure spinor BRST operator for higher-point amplitudes based on their kinematic pole structure. Using this method, Ansaetze for the 6- and 7-point 10D super-Yang-Mills amplitudes which map to their 14 and 42 color-ordered diagrams are conjectured and their 6- and 7-gluon expansions are explicitly computed.

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 Dates: 2010-07-212010-08-032010
 Publication Status: Published in print
 Pages: 14 pages, harvmac, v2: 7-pt amplitude ansatz in pure spinor superspace added and 6- and 7-gluon component expansions of 6- and 7-pt Ansaetze explicitly computed. Abstract changed and added references
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 Identifiers: arXiv: 1007.3639
URI: http://arxiv.org/abs/1007.3639
DOI: 10.1007/JHEP11(2010)096
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Title: Journal of High Energy Physics
Source Genre: Journal
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Pages: - Volume / Issue: 2010 Sequence Number: 096 Start / End Page: 1 - 15 Identifier: -