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  New BCJ representations for one-loop amplitudes in gauge theories and gravity

He, S., Schlotterer, O., & Zhang, Y. (2018). New BCJ representations for one-loop amplitudes in gauge theories and gravity. Nuclear Physics B, 930, 328-383. doi:10.1016/j.nuclphysb.2018.03.003.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-8CAB-F Version Permalink: http://hdl.handle.net/21.11116/0000-0002-ECE7-0
Genre: Journal Article

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 Creators:
He, Song, Author
Schlotterer, Oliver1, Author              
Zhang, Yong, 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 explain a procedure to manifest the Bern--Carrasco--Johansson duality between color and kinematics in n-point one-loop amplitudes of a variety of supersymmetric gauge theories. Explicit amplitude representations are constructed through a systematic reorganization of the integrands in the Cachazo--He--Yuan formalism. Our construction is independent on the amount of supersymmetry or the number of spacetime dimensions. The cancellations from supersymmetry multiplets in the loop as well as the resulting power counting of loop momenta is manifested along the lines of the corresponding superstring computations. The setup is used to derive the one-loop version of the Kawai--Lewellen--Tye formula for the loop integrands of gravitational amplitudes.

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 Dates: 2017-06-022018
 Publication Status: Published in print
 Pages: 58 + 15 pages
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 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1706.00640
URI: http://arxiv.org/abs/1706.00640
DOI: 10.1016/j.nuclphysb.2018.03.003
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Title: Nuclear Physics B
Source Genre: Journal
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Pages: - Volume / Issue: 930 Sequence Number: - Start / End Page: 328 - 383 Identifier: -