Unitarity of spin-2 theories with linearized Weyl symmetry in D=2+1 dimensions

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorDalmazi, D.-
Data de aceite: dc.date.accessioned2025-08-21T15:09:43Z-
Data de disponibilização: dc.date.available2025-08-21T15:09:43Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2009-10-06-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1103/PhysRevD.80.085008-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/225675-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/225675-
Descrição: dc.descriptionHere we prove unitarity of the recently found fourth-order (in derivatives) self-dual model of spin-2 by investigating the analytic structure of its propagator. The model describes massive particles of helicity +2 (or -2) in D=2+1 dimensions and corresponds to the quadratic truncation of a higher derivative topologically massive gravity about a flat background. It is an intriguing example of a theory where a term in the propagator of the form 1/[□2(□-m2)] does not lead to ghosts. The crucial role of the linearized Weyl symmetry in getting rid of the ghosts is pointed out. We use a peculiar pair of gauge conditions which fix the linearized reparametrizations and linearized Weyl symmetries separately. © 2009 The American Physical Society.-
Descrição: dc.descriptionUNESP Campus de Guaratinguetá DFQ, Avenida Dr. Ariberto Pereira da Cunha 333, CEP 12516-410, Guaratinguetá SP-
Descrição: dc.descriptionUNESP Campus de Guaratinguetá DFQ, Avenida Dr. Ariberto Pereira da Cunha 333, CEP 12516-410, Guaratinguetá SP-
Idioma: dc.languageen-
Relação: dc.relationPhysical Review D - Particles, Fields, Gravitation and Cosmology-
???dc.source???: dc.sourceScopus-
Título: dc.titleUnitarity of spin-2 theories with linearized Weyl symmetry in D=2+1 dimensions-
Tipo de arquivo: dc.typelivro digital-
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