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dc.contributor.authorBerkovits, Nathan-
dc.identifier.citationJournal of High Energy Physics, n. 10, p. 2157-2185, 2005.-
dc.description.abstractFollowing suggestions of Nekrasov and Siegel, a non-minimal set of fields are added to the pure spinor formalism for the superstring. Twisted ĉ ≤ 3 N ≤ 2 generators are then constructed where the pure spinor BRST operator is the fermionic spin-one generator, and the formalism is interpreted as a critical topological string. Three applications of this topological string theory include the super-Poincaré covariant computation of multiloop superstring amplitudes without picture-changing operators, the construction of a cubic open superstring field theory without contact-term problems, and a new four-dimensional version of the pure spinor formalism which computes F-terms in the spacetime action. © SISSA 2005.en
dc.subjectSuperstrings and Heterotic Strings-
dc.subjectTopological Strings-
dc.titlePure spinor formalism as an N ≤ 2 topological stringen
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
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.rights.accessRightsAcesso restrito-
dc.relation.ispartofJournal of High Energy Physics-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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