Nota de FísicaPublicado
On the Consistency of a Fermion-Torsion Effective Theory
G. B. Peixoto; José Abdalla Helayel Neto; Ilya. L. Shapiro
1999
Dados da publicação
- Autores
- G. B. Peixoto; José Abdalla Helayel Neto; Ilya. L. Shapiro
- Tipo
- Nota de Física
- Status
- Publicado
- Data de publicação
- 1999
- Descrição
- We discuss the possibility to construct an effective quantum field theory for an axial vector coupled to a Dirac spinor field. A massive axial vector describes antisymmetric torsion. The consistency conditions include unitarity and renormalizability in the low-energy region. The investigation of the Ward identities and the one- and two-loop divergences indicate serious problems arising in the theory. The final conclusion is that torsion may exist as a string excitation, but there are very severe restrictions for the existence of a propagating torsion field, subject to the quantization procedure, at low energies.
- Ano
- 1999
- Número
- CBPF-NF-061/99
- Vínculo com tese
- Não
- Vínculo com bolsa
- Não