Pure spinor vertex operators in Siegel gauge and loop amplitude regularization

Página do item simplificado
dc.contributor.authorAisaka, Yuri [UNESP]
dc.contributor.authorBerkovits, Nathan [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Calif Santa Barbara
dc.date.accessioned2013-09-30T18:53:24Z
dc.date.accessioned2014-05-20T14:09:23Z
dc.date.available2013-09-30T18:53:24Z
dc.date.available2014-05-20T14:09:23Z
dc.date.issued2009-07-01
dc.description.abstractSince the b ghost in the pure spinor formalism is a composite operator depending on non-minimal variables, it is not trivial to impose the Siegel gauge condition b(0)V = 0 on BRST-invariant vertex operators. Using the antifield vertex operator V* of ghost-number +2, we show that Siegel gauge unintegrated vertex operators can be constructed as b(0)V* and Siegel gauge integrated vertex operators as integral dz b(-1)b(0)V*.These Siegel gauge vertex operators depend on the non-minimal variables, so scattering amplitudes involving these operators need to be regularized using the prescription developed previously with Nekrasov. As an example of this regularization prescription, we compute the four-point one-loop amplitude with four Siegel gauge integrated vertex operators. This is the first one-loop computation in the pure spinor formalism that does not require unintegrated vertex operators.en
dc.description.affiliationSão Paulo State Univ, Inst Fis Teor, BR-01405900 São Paulo, Brazil
dc.description.affiliationUniv Calif Santa Barbara, Kavli Inst Theoret Phys, Santa Barbara, CA 93106 USA
dc.description.affiliationUnespSão Paulo State Univ, Inst Fis Teor, BR-01405900 São Paulo, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipNational Science Foundation
dc.description.sponsorshipIdFAPESP: 06/59970-5
dc.description.sponsorshipIdFAPESP: 04/11426-0
dc.description.sponsorshipIdCNPq: 300256/94-9
dc.description.sponsorshipIdNational Science Foundation: PHY05-51164
dc.format.extent30
dc.identifierhttp://dx.doi.org/10.1088/1126-6708/2009/07/062
dc.identifier.citationJournal of High Energy Physics. Trieste: Int School Advanced Studies, n. 7, p. 30, 2009.
dc.identifier.doi10.1088/1126-6708/2009/07/062
dc.identifier.issn1126-6708
dc.identifier.urihttp://hdl.handle.net/11449/24157
dc.identifier.wosWOS:000270219900062
dc.language.isoeng
dc.publisherInt School Advanced Studies
dc.relation.ispartofJournal of High Energy Physics
dc.relation.ispartofsjr1,227
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectSuperstrings and Heterotic Stringsen
dc.subjectString Field Theoryen
dc.titlePure spinor vertex operators in Siegel gauge and loop amplitude regularizationen
dc.typeArtigo
dcterms.licensehttp://iopscience.iop.org/info/page/openaccess
dcterms.rightsHolderInt School Advanced Studies
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Física Teórica (IFT), São Paulopt

Arquivos

Licença do Pacote
Agora exibindo 1 - 2 de 2
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:

Coleções

Artigos - Instituto de Física Teórica (IFT)