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  Non-abelian Z-theory: Berends-Giele recursion for the alpha'-expansion of disk integrals

Mafra, C. R., & Schlotterer, O. (2017). Non-abelian Z-theory: Berends-Giele recursion for the alpha'-expansion of disk integrals. Journal of high energy physics: JHEP, 2017: 031. doi:10.1007/JHEP01(2017)031.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-8801-F Version Permalink: http://hdl.handle.net/21.11116/0000-0002-F6B6-B
Genre: Journal Article

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 Creators:
Mafra, Carlos R., Author
Schlotterer, Oliver1, Author              
Affiliations:
1Quantum Gravity and 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: We present a recursive method to calculate the $\alpha'$-expansion of disk integrals arising in tree-level scattering of open strings which resembles the approach of Berends and Giele to gluon amplitudes. Following an earlier interpretation of disk integrals as doubly partial amplitudes of an effective theory of scalars dubbed as $Z$-theory, we pinpoint the equation of motion of $Z$-theory from the Berends-Giele recursion for its tree amplitudes. A computer implementation of this method including explicit results for the recursion up to order $\alpha'^7$ is made available on the website http://repo.or.cz/BGap.git

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 Dates: 2016-09-222017
 Publication Status: Published in print
 Pages: 58 pages, harvmac TeX
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 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1609.07078
URI: http://arxiv.org/abs/1609.07078
DOI: 10.1007/JHEP01(2017)031
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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: 2017 Sequence Number: 031 Start / End Page: - Identifier: ISSN: 1126-6708
CoNE: /journals/resource/111021927548002