Some superstring amplitude computations with the non-minimal pure spinor formalism
Some superstring amplitude computations with the non-minimal pure spinor formalism
We use the non-minimal pure spinor formalism to compute in a super-Poincare covariant manner the four-point massless one and two-loop open superstring amplitudes, and the gauge anomaly of the six-point one-loop amplitude. All of these amplitudes are expressed as integrals of ten-dimensional superfields in a "pure spinor superspace" which involves five $\theta$ coordinates covariantly contracted with three pure spinors. The bosonic contribution to these amplitudes agrees with the standard results, and we demonstrate identities which show how the $t_8$ and $\epsilon_{10}$ tensors naturally emerge from integrals over pure spinor superspace.
hep-th
1-17
Berkovits, Nathan
cfb34f5e-c625-4bfb-b8a5-8007d2ef1fbd
Mafra, Carlos R.
5a40c14f-0ddb-4c0c-9ce5-acabc537cd01
27 November 2006
Berkovits, Nathan
cfb34f5e-c625-4bfb-b8a5-8007d2ef1fbd
Mafra, Carlos R.
5a40c14f-0ddb-4c0c-9ce5-acabc537cd01
Berkovits, Nathan and Mafra, Carlos R.
(2006)
Some superstring amplitude computations with the non-minimal pure spinor formalism.
Journal of High Energy Physics, .
(doi:10.1088/1126-6708/2006/11/079).
Abstract
We use the non-minimal pure spinor formalism to compute in a super-Poincare covariant manner the four-point massless one and two-loop open superstring amplitudes, and the gauge anomaly of the six-point one-loop amplitude. All of these amplitudes are expressed as integrals of ten-dimensional superfields in a "pure spinor superspace" which involves five $\theta$ coordinates covariantly contracted with three pure spinors. The bosonic contribution to these amplitudes agrees with the standard results, and we demonstrate identities which show how the $t_8$ and $\epsilon_{10}$ tensors naturally emerge from integrals over pure spinor superspace.
Text
0607187v1
- Accepted Manuscript
More information
Published date: 27 November 2006
Additional Information:
20 pages, harvmac tex
Keywords:
hep-th
Identifiers
Local EPrints ID: 434942
URI: http://eprints.soton.ac.uk/id/eprint/434942
ISSN: 1029-8479
PURE UUID: 51e481de-e4c5-4820-ad7a-dc02411f0d4e
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Date deposited: 16 Oct 2019 16:30
Last modified: 17 Mar 2024 03:33
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Author:
Nathan Berkovits
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