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  One-loop superstring six-point amplitudes and anomalies in pure spinor superspace

Mafra, C. R., & Schlotterer, O. (2016). One-loop superstring six-point amplitudes and anomalies in pure spinor superspace. Journal of high energy physics: JHEP, 2016(04): 148. doi: 10.1007/JHEP04(2016)148.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-3BDE-3 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-83A5-0
Genre: Journal Article

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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, 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 present the massless six-point one-loop amplitudes in the open and closed superstring using BRST cohomology arguments from the pure spinor formalism. The hexagon gauge anomaly is traced back to a class of kinematic factors in pure spinor superspace which were recently introduced as BRST pseudo-invariants. This complements previous work where BRST invariance arguments were used to derive the non-anomalous part of the amplitude. The associated worldsheet functions are non-singular and demonstrated to yield total derivatives on moduli space upon gauge variation. These cohomology considerations yield an efficient organizing principle for closed-string amplitudes that match expectations from S-duality in the low-energy limit.

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 Dates: 2016-03-152016
 Publication Status: Published in print
 Pages: harvmac TeX, 35 pages
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 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1603.04790
DOI: 10.1007/JHEP04(2016)148
 Degree: -

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Title: Journal of high energy physics : JHEP
Source Genre: Journal
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Pages: - Volume / Issue: 2016 (04) Sequence Number: 148 Start / End Page: - Identifier: ISSN: 1126-6708
CoNE: /journals/resource/111021927548002