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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/23434
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dc.contributor.authorCasana, R.-
dc.date.accessioned2014-05-20T14:06:44Z-
dc.date.accessioned2016-10-25T17:11:58Z-
dc.date.available2014-05-20T14:06:44Z-
dc.date.available2016-10-25T17:11:58Z-
dc.date.issued2005-12-10-
dc.identifierhttp://dx.doi.org/10.1142/S0217751X0502389X-
dc.identifier.citationInternational Journal of Modern Physics A. Singapore: World Scientific Publ Co Pte Ltd, v. 20, n. 30, p. 7129-7151, 2005.-
dc.identifier.issn0217-751X-
dc.identifier.urihttp://hdl.handle.net/11449/23434-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/23434-
dc.description.abstractWe present a nonperturbative study of the (1 + 1)-dimensional massless Thirring model by using path integral methods. The regularization ambiguities - coming from the computation of the fermionic determinant - allow to find new solution types for the model. At quantum level the Ward identity for the 1PI 2-point function for the fermionic current separates such solutions in two phases or sectors, the first one has a local gauge symmetry that is implemented at quantum level and the other one without this symmetry. The symmetric phase is a new solution which is unrelated to the previous studies of the model and, in the nonsymmetric phase there are solutions that for some values of the ambiguity parameter are related to well-known solutions of the model. We construct the Schwinger-Dyson equations and the Ward identities. We make a detailed analysis of their UV divergence structure and, after, we perform a nonperturbative regularization and renormalization of the model.en
dc.format.extent7129-7151-
dc.language.isoeng-
dc.publisherWorld Scientific Publ Co Pte Ltd-
dc.sourceWeb of Science-
dc.subjectTheory of quantized fieldspt
dc.subjectgauge field theoriespt
dc.subjectsymmetry and conservation lawspt
dc.titleRenormalized new solutions for the massless Thirring modelen
dc.typeoutro-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationUniv Estadual Paulista, Inst Fis Teor, BR-01405900 São Paulo, SP, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista, Inst Fis Teor, BR-01405900 São Paulo, SP, Brazil-
dc.identifier.doi10.1142/S0217751X0502389X-
dc.identifier.wosWOS:000234727600003-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofInternational Journal of Modern Physics A-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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