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dc.contributor.authorDallabona, G.
dc.contributor.authorBattistel, O. A.
dc.identifier.citationPhysical Review D - Particles, Fields, Gravitation and Cosmology, v. 70, n. 6, 2004.
dc.description.abstractWe consider the consistent evaluation of perturbative (divergent) Green functions associated with fermionic tensor densities and the derivation of symmetry relations for them. We show that, in spite of current algebra methods being not applicable, it is possible to derive symmetry properties analogous to the Ward identities of vector and axial-vector densities. The proposed method, which is applicable to any previously chosen order of perturbative calculation, gives the same results as those of current algebra when such a tool is applicable. By using a very general calculational strategy, concerning the manipulations and calculations involving divergent Feynman integrals, we evaluate the purely fermionic two-point functions containing tensor vertices and derive their symmetry properties. The present investigation is the first step in the study and characterization of possible anomalies involving fermionic tensor densities, particularly in purely fermionic three-point functions. © 2004 The American Physical Society.en
dc.relation.ispartofPhysical Review D - Particles, Fields, Gravitation and Cosmology
dc.titleAmbiguities and symmetry relations associated with fermionic tensor densitiesen
dc.contributor.institutionInstituto de Física Teórica
dc.contributor.institutionUniversidade Federal de Santa Maria
dc.description.affiliationInstituto de Física Teórica, São Paulo, 01405-900
dc.description.affiliationDepartamento de Física Universidade Federal de Santa Maria, Caixa Postal 5093, 97119-900
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