The massive one-loop four-point string amplitude in pure spinor superspace
The massive one-loop four-point string amplitude in pure spinor superspace
The open- and closed-string three- and four-point one-loop amplitudes involving massless states and one first-level massive state are computed in pure spinor superspace. For the open string, we show that their one-loop correlators can be rewritten in terms of tree-level kinematic factors. We then analyze the closed string. For three points, this is immediate. For four points, we show that it is possible to rewrite the one-loop closed-string correlator using tree-level kinematic factors, but only for certain combinations of massive and massless states (different for type IIA and IIB).
hep-th
Mafra, Carlos R.
5a40c14f-0ddb-4c0c-9ce5-acabc537cd01
Mafra, Carlos R.
5a40c14f-0ddb-4c0c-9ce5-acabc537cd01
[Unknown type: UNSPECIFIED]
Abstract
The open- and closed-string three- and four-point one-loop amplitudes involving massless states and one first-level massive state are computed in pure spinor superspace. For the open string, we show that their one-loop correlators can be rewritten in terms of tree-level kinematic factors. We then analyze the closed string. For three points, this is immediate. For four points, we show that it is possible to rewrite the one-loop closed-string correlator using tree-level kinematic factors, but only for certain combinations of massive and massless states (different for type IIA and IIB).
Text
2508.09930v1
- Author's Original
Available under License Other.
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In preparation date: 13 August 2025
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27 pages
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hep-th
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Local EPrints ID: 504081
URI: http://eprints.soton.ac.uk/id/eprint/504081
PURE UUID: 0c1ab97f-3553-4598-865e-a0f809f511f5
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Date deposited: 22 Aug 2025 16:48
Last modified: 23 Aug 2025 01:59
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