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  From maximal to minimal supersymmetry in string loop amplitudes

Berg, M., Buchberger, I., & Schlotterer, O. (2017). From maximal to minimal supersymmetry in string loop amplitudes. Journal of high energy physics: JHEP, 2017(04): 163. doi:10.1007/JHEP04(2017)163.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-3BE4-4 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002E-0EC7-4
Genre: Journal Article

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 Creators:
Berg, Marcus, Author
Buchberger, Igor, Author
Schlotterer, Oliver1, Author              
Affiliations:
1Quantum Gravity and Unified Theories, AEI Golm, MPI for Gravitational Physics, Max Planck Society, escidoc:24014              

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Free keywords: High Energy Physics - Theory, hep-th
 Abstract: We calculate one-loop string amplitudes of open and closed strings with N=1,2,4 supersymmetry in four and six dimensions, by compactification on Calabi-Yau and K3 orbifolds. In particular, we develop a method to combine contributions from all spin structures for arbitrary number of legs at minimal supersymmetry. Each amplitude is cast into a compact form by reorganizing the kinematic building blocks and casting the worldsheet integrals in a basis. Infrared regularization plays an important role to exhibit the expected factorization limits. We comment on implications for the one-loop string effective action.

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 Dates: 2016-03-162017
 Publication Status: Published in print
 Pages: 52 + 18 pages
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1603.05262
URI: http://arxiv.org/abs/1603.05262
DOI: 10.1007/JHEP04(2017)163
 Degree: -

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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 (04) Sequence Number: 163 Start / End Page: - Identifier: ISSN: 1126-6708
CoNE: http://pubman.mpdl.mpg.de/cone/journals/resource/111021927548002