Multiloop amplitudes and vanishing theorems using the pure spinor formalism for the superstring

Página do item simplificado
dc.contributor.authorBerkovits, Nathan [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:21:08Z
dc.date.available2014-05-27T11:21:08Z
dc.date.issued2004-09-01
dc.description.abstractA ten-dimensional super-Poincaré covariant formalism for the superstring was recently developed which involves a BRST operator constructed from superspace matter variables and a pure spinor ghost variable. A super-Poincaré covariant prescription was defined for computing tree amplitudes and was shown to coincide with the standard RNS prescription. In this paper, picture-changing operators are used to define functional integration over the pure spinor ghosts and and to construct a suitable b ghost. A super-Poincaré covariant prescription is then given for the computation of N-point multiloop amplitudes. One can easily prove that massless N-point multiloop amplitudes vanish for N < 4, confirming the perturbative finiteness of superstring theory. One can also prove the Type IIB S-duality conjecture that R4 terms in the effective action receive no perturbative contributions above one loop. © SISSA/ISAS 2004.en
dc.description.affiliationInstituto de Física Teórica Universidade Estadual Paulista, Rua Pamplona 145, 01405-900, São Paulo, SP
dc.description.affiliationUnespInstituto de Física Teórica Universidade Estadual Paulista, Rua Pamplona 145, 01405-900, São Paulo, SP
dc.format.extent1171-1210
dc.identifierhttp://dx.doi.org/10.1088/1126-6708/2004/09/047
dc.identifier.citationJournal of High Energy Physics, v. 8, n. 9, p. 1171-1210, 2004.
dc.identifier.doi10.1088/1126-6708/2004/09/047
dc.identifier.issn1029-8479
dc.identifier.issn1126-6708
dc.identifier.scopus2-s2.0-21444436975
dc.identifier.urihttp://hdl.handle.net/11449/67841
dc.identifier.wosWOS:000225279400024
dc.language.isoeng
dc.relation.ispartofJournal of High Energy Physics
dc.relation.ispartofjcr5.541
dc.relation.ispartofsjr1,227
dc.relation.ispartofsjr1,227
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectBRST Symmetry
dc.subjectExtended Supersymmetry
dc.subjectSuperstrings and Heterotic Strings
dc.titleMultiloop amplitudes and vanishing theorems using the pure spinor formalism for the superstringen
dc.typeArtigo
dcterms.licensehttp://iopscience.iop.org/page/copyright
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Física Teórica (IFT), São Paulopt

Arquivos

Coleções

Artigos - Instituto de Física Teórica (IFT)