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Particles and Fields
Eur. Phys. J. C 8, 353-361
DOI 10.1007/s100529901076

Causal theory for the gauged Thirring model

L.A. Manzoni1 - B.M. Pimentel1 - J.L. Tomazelli2

1 Instituto de Física Teórica, Universidade Estadual Paulista, Rua Pamplona, 145, 01405-900 - São Paulo, S.P., Brazil
2 Departamento de Física e Química - Faculdade de Engenharia, Universidade Estadual Paulista - Campus de Guaratinguetá, Av. Dr. Ariberto Pereira da Cunha, 333, 12500-000 - Guaratinguetá, S.P., Brazil

Received: 5 October 1998 / Published online: 19 February 1999

We consider the (2+1)-dimensional massive Thirring model as a gauge theory, with one-fermion flavor, in the framework of the causal perturbation theory and address the problem of dynamical mass generation for the gauge boson. In this context we obtain an unambiguous expression for the coefficient of the induced Chern-Simons term.

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