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dc.contributor.authorBabujian, Hratchya M.pt_BR
dc.contributor.authorFoerster, Angelapt_BR
dc.contributor.authorKarowski, Michaelpt_BR
dc.date.accessioned2014-06-28T02:07:03Zpt_BR
dc.date.issued2013pt_BR
dc.identifier.issn1029-8479pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/96960pt_BR
dc.description.abstractA general form factor formula for the O(N) σ-model is constructed and applied to several operators. The large N limits of these form factors are computed and compared with the 1/N expansion of the O(N) σ-model in terms of Feynman graphs and full agreement is found. In particular, O(3) and O(4) form factors are discussed. For the O(3) σ-model several low particle form factors are calculated explicitly.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofThe journal of high energy physics. Trieste. No. 11 (Nov. 2013), 089, 53 p.pt_BR
dc.rightsOpen Accessen
dc.subjectExact s-matrixen
dc.subjectTeoria axiomatica de campospt_BR
dc.subjectTeoria de campos não-linearespt_BR
dc.subjectBethe ansatzen
dc.subjectIntegrable field theoriesen
dc.subjectGrupos Opt_BR
dc.subjectSigma modelsen
dc.titleExact form factors of the O(N) σ-modelpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000917185pt_BR
dc.type.originEstrangeiropt_BR


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