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dc.contributor.authorFerreira, Luiz A.-
dc.contributor.authorGervais, Jean-Loup-
dc.contributor.authorGuillén, Joaquín Sánchez-
dc.contributor.authorSaveliev, Mikhail V.-
dc.identifier.citationNuclear Physics B, v. 470, n. 1-2, p. 236-288, 1996.-
dc.description.abstractWe investigate higher grading integrable generalizations of the affine Toda systems, where the flat connections defining the models take values in eigensubspaces of an integral gradation of an affine Kac-Moody algebra, with grades varying from l to -l (l > 1). The corresponding target space possesses nontrivial vacua and soliton configurations, which can be interpreted as particles of the theory, on the same footing as those associated to fundamental fields. The models can also be formulated by a hamiltonian reduction procedure from the so-called two-loop WZNW models. We construct the general solution and show the classes corresponding to the solitons. Some of the particles and solitons become massive when the conformal symmetry is spontaneously broken by a mechanism with an intriguing topological character and leading to a very simple mass formula. The massive fields associated to nonzero grade generators obey field equations of the Dirac type and may be regarded as matter fields. A special class of models is remarkable. These theories possess a U(1 ) Noether current, which, after a special gauge fixing of the conformal symmetry, is proportional to a topological current. This leads to the confinement of the matter field inside the solitons, which can be regarded as a one-dimensional bag model for QCD. These models are also relevant to the study of electron self-localization in (quasi-)one-dimensional electron-phonon systems.en
dc.titleAffine Toda systems coupled to matter fieldsen
dc.contributor.institutionUniv. de Santiago de Compostela-
dc.contributor.institutionLab. de Phys. Theorique de l'E.-
dc.contributor.institutionInstitute for High Energy Physics-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationFacultad de Física Univ. de Santiago de Compostela, 15706 Santiago de Compostela-
dc.description.affiliationLab. de Phys. Theorique de l'E., 24 rue Lhomond, 75231 Paris Cedex 05-
dc.description.affiliationInstitute for High Energy Physics, 142284 Protvino-
dc.description.affiliationInstitute de Ficica Teorica IFT/UNESP, Säo Paulo-
dc.description.affiliationUnespInstitute de Ficica Teorica IFT/UNESP, Säo Paulo-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofNuclear Physics B-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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