Multiloop superstring amplitudes from non-minimal pure spinor formalism

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dc.contributor.authorBerkovits, Nathan
dc.contributor.authorNekrasov, Nikita
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionInst Hautes Etud Sci
dc.date.accessioned2014-05-20T15:21:03Z
dc.date.available2014-05-20T15:21:03Z
dc.date.issued2006-12-01
dc.description.abstractUsing the non-minimal version of the pure spinor formalism, manifestly super-Poincare covariant superstring scattering amplitudes can be computed as in topological string theory without the need of picture-changing operators. The only subtlety comes from regularizing the functional integral over the pure spinor ghosts. In this paper, it is shown how to regularize this functional integral in a BRST-invariant manner, allowing the computation of arbitrary multiloop amplitudes. The regularization method simplifies for scattering amplitudes which contribute to ten-dimensional F-terms, i.e. terms in the ten-dimensional superspace action which do not involve integration over the maximum number of theta's.en
dc.description.affiliationState Univ São Paulo, Inst Fis Teor, BR-01405900 São Paulo, Brazil
dc.description.affiliationInst Hautes Etud Sci, F-91440 Bures Sur Yvette, France
dc.description.affiliationUnespState Univ São Paulo, Inst Fis Teor, BR-01405900 São Paulo, Brazil
dc.format.extent22
dc.identifierhttp://arxiv.org/abs/hep-th/0609012
dc.identifier.citationJournal of High Energy Physics. Trieste: Int School Advanced Studies, n. 12, 22 p., 2006.
dc.identifier.issn1126-6708
dc.identifier.issn1029-8479
dc.identifier.scopus2-s2.0-33846158840
dc.identifier.urihttp://hdl.handle.net/11449/32234
dc.identifier.wosWOS:000244081100030
dc.language.isoeng
dc.publisherInt School Advanced Studies
dc.relation.ispartofJournal of High Energy Physics
dc.relation.ispartofjcr5.541
dc.relation.ispartofsjr1,227
dc.relation.ispartofsjr1,227
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectBRST symmetrypt
dc.subjectsuperstrings and heterotic stringspt
dc.titleMultiloop superstring amplitudes from non-minimal pure spinor formalismen
dc.typeArtigo
dcterms.licensehttp://iopscience.iop.org/page/copyright
dcterms.rightsHolderInt School Advanced Studies
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Física Teórica (IFT), São Paulopt

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