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dc.contributor.authorRoehrig, KA
dc.contributor.authorSkinner, David
dc.date.accessioned2018-07-06T10:14:12Z
dc.date.available2018-07-06T10:14:12Z
dc.date.issued2018-01-15
dc.identifier.issn1126-6708
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/277881
dc.description.abstractWe present a new operator in the ambitwistor string which glues together correlators with fewer points or of lower genus. It underpins the recursive construction of tree-level CHY scattering amplitudes by Dolan & Goddard, as well as the computation of loop integrands on a Riemann sphere by Geyer et al. The gluing operator is a tractable object due to the finiteness of the spectrum. In particular, we demonstrate how it gives rise to the complete one-loop integrand in SYM and SUGRA. The operator is conjectured to be the path integral incarnation of the ambitwistor string propagator, and to coincide with the field theory limit of the standard string theory propagator.
dc.description.sponsorshipThe work of KR and DS is supported in part by a Marie Curie Career Integration Grant (FP/2007-2013/631289). The work of DS is supported in part by STFC consolidated grant ST/L000385/1.
dc.languageen
dc.publisherSpringer Nature
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectBRST quantization
dc.subjectscattering amplitudes
dc.subjectconformal field theory
dc.subjectsigma models
dc.titleA gluing operator for the ambitwistor string
dc.typeArticle
prism.number69
prism.publicationNameJournal of High Energy Physics
prism.volume2018
dc.identifier.doi10.17863/CAM.25216
dcterms.dateAccepted2017-12-07
rioxxterms.versionofrecord10.1007/JHEP01(2018)069
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/
rioxxterms.licenseref.startdate2017-12-07
dc.contributor.orcidSkinner, David [0000-0002-3014-9127]
dc.identifier.eissn1029-8479
dc.publisher.urlhttps://link.springer.com/article/10.1007/JHEP01(2018)069
rioxxterms.typeJournal Article/Review
pubs.funder-project-idEuropean Commission (631289)
pubs.funder-project-idScience and Technology Facilities Council (ST/P000681/1)
cam.issuedOnline2018-01-15
dc.identifier.urlhttps://link.springer.com/article/10.1007/JHEP01(2018)069


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International