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  Semi-abelian Z-theory: NLSM+phi^3 from the open string

Carrasco, J. J. M., Mafra, C. R., & Schlotterer, O. (2017). Semi-abelian Z-theory: NLSM+phi^3 from the open string. Journal of high energy physics: JHEP, 2017(08): 135. doi:10.1007/JHEP08(2017)135.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-59AF-6 Version Permalink: http://hdl.handle.net/21.11116/0000-0002-E91A-B
Genre: Journal Article

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 Creators:
Carrasco, John Joseph M., Author
Mafra, Carlos R.1, Author              
Schlotterer, Oliver2, Author              
Affiliations:
1Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24014              
2Quantum 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 continue our investigation of Z-theory, the second double-copy component of open-string tree-level interactions besides super-Yang-Mills (sYM). We show that the amplitudes of the extended non-linear sigma model (NLSM) recently considered by Cachazo, Cha, and Mizera are reproduced by the leading alpha'-order of Z-theory amplitudes in the semi-abelian limit. The extension refers to a coupling of NLSM pions to bi-adjoint scalars, and the semi-abelian limit refers to a partial symmetrization over one of the color orderings that characterize the Z-theory amplitudes. Alternatively, the partial symmetrization corresponds to a mixed interaction among abelian and non-abelian states in the underlying open-superstring amplitude. We simplify these permutation sums via monodromy relations which greatly increase the efficiency in extracting the alpha'-expansion of these amplitudes. Their alpha'-corrections encode higher-derivative interactions between NLSM pions and bi-colored scalars all of which obey the duality between color and kinematics. Through double copy, these results can be used to generate the predictions of supersymmetric Dirac-Born-Infeld-Volkov-Akulov theory coupled with sYM as well as a complete tower of higher-order alpha'-corrections.

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 Dates: 2016-12-192017
 Publication Status: Published in print
 Pages: 27 pages
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 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1612.06446
URI: http://arxiv.org/abs/1612.06446
DOI: 10.1007/JHEP08(2017)135
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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 (08) Sequence Number: 135 Start / End Page: - Identifier: ISSN: 1126-6708
CoNE: /journals/resource/111021927548002