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The one-loop open superstring massless five-point amplitude with the non-minimal pure spinor formalism

The one-loop open superstring massless five-point amplitude with the non-minimal pure spinor formalism
The one-loop open superstring massless five-point amplitude with the non-minimal pure spinor formalism
We compute the massless five-point amplitude of open superstrings using the non-minimal pure spinor formalism and obtain a simple kinematic factor in pure spinor superspace, which can be viewed as the natural extension of the kinematic factor of the massless four-point amplitude. It encodes bosonic and fermionic external states in supersymmetric form and reduces to existing bosonic amplitudes when expanded in components, therefore proving their equivalence. We also show how to compute the kinematic structures involving fermionic states.
hep-th
1029-8479
1-33
Mafra, Carlos R.
5a40c14f-0ddb-4c0c-9ce5-acabc537cd01
Stahn, Christian
0164ac26-f6b0-4c6f-9430-3edbfa8a5583
Mafra, Carlos R.
5a40c14f-0ddb-4c0c-9ce5-acabc537cd01
Stahn, Christian
0164ac26-f6b0-4c6f-9430-3edbfa8a5583

Mafra, Carlos R. and Stahn, Christian (2009) The one-loop open superstring massless five-point amplitude with the non-minimal pure spinor formalism. Journal of High Energy Physics, 1-33. (doi:10.1088/1126-6708/2009/03/126).

Record type: Article

Abstract

We compute the massless five-point amplitude of open superstrings using the non-minimal pure spinor formalism and obtain a simple kinematic factor in pure spinor superspace, which can be viewed as the natural extension of the kinematic factor of the massless four-point amplitude. It encodes bosonic and fermionic external states in supersymmetric form and reduces to existing bosonic amplitudes when expanded in components, therefore proving their equivalence. We also show how to compute the kinematic structures involving fermionic states.

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0902.1539v2 - Accepted Manuscript
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More information

Published date: 25 March 2009
Additional Information: 38 pages, harvmac TeX, v2: fix typo in (4.2) and add reference
Keywords: hep-th

Identifiers

Local EPrints ID: 434940
URI: http://eprints.soton.ac.uk/id/eprint/434940
ISSN: 1029-8479
PURE UUID: 9e73cc22-30f7-42ca-b697-2eab4dcba031
ORCID for Carlos R. Mafra: ORCID iD orcid.org/0000-0001-9842-9654

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Date deposited: 16 Oct 2019 16:30
Last modified: 17 Mar 2024 03:33

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Author: Carlos R. Mafra ORCID iD
Author: Christian Stahn

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