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  Complete N-Point Superstring Disk Amplitude I. Pure Spinor Computation

Mafra, C. R., Schlotterer, O., & Stieberger, S. (2013). Complete N-Point Superstring Disk Amplitude I. Pure Spinor Computation. Nuclear Physics B, 873(3), 419-460. doi:10.1016/j.nuclphysb.2013.04.023.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0012-0442-D Version Permalink: http://hdl.handle.net/21.11116/0000-0004-48D2-E
Genre: Journal Article

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1106.2645 (Preprint), 358KB
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 Creators:
Mafra, Carlos R.1, Author              
Schlotterer, Oliver, Author
Stieberger, Stephan, Author
Affiliations:
1Quantum Gravity & 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: In this paper the pure spinor formalism is used to obtain a compact expression for the superstring N-point disk amplitude. The color ordered string amplitude is given by a sum over (N-3)! super Yang-Mills subamplitudes multiplied by multiple Gaussian hypergeometric functions. In order to obtain this result, the cohomology structure of the pure spinor superspace is exploited to generalize the Berends-Giele method of computing super Yang-Mills amplitudes. The method was briefly presented in [1], and this paper elaborates on the details and contains higher-rank examples of building blocks and associated cohomology objects. But the main achievement of this work is to identify these field-theory structures in the pure spinor computation of the superstring amplitude. In particular, the associated set of basis worldsheet integrals is constructively obtained here and thoroughly investigated together with the structure and properties of the amplitude in [2].

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 Dates: 2011-06-142013
 Publication Status: Published in print
 Pages: 53 pages, harvmac TeX
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1106.2645
DOI: 10.1016/j.nuclphysb.2013.04.023
 Degree: -

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Title: Nuclear Physics B
Source Genre: Journal
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Publ. Info: Amsterdam : North-Holland
Pages: - Volume / Issue: 873 (3) Sequence Number: - Start / End Page: 419 - 460 Identifier: ISSN: 0550-3213
CoNE: /journals/resource/954925564667