Algebraic approach to classical field theory and its perturbative quantization aro...
| Full text | |
| Author(s): |
Ferrari, A. F.
;
Neto, J. A. S.
;
da Rocha, R.
Total Authors: 3
|
| Document type: | Journal article |
| Source: | GENERAL RELATIVITY AND GRAVITATION; v. 49, n. 5 MAY 2017. |
| Web of Science Citations: | 1 |
| Abstract | |
In this work, we consider a generalization of quantum electrodynamics including Lorentz violation and torsional-gravity, in the context of general spinor fields as classified in the Lounesto scheme. Singular spinor fields will be shown to be less sensitive to the Lorentz violation, as far as couplings between the spinor bilinear covariants and torsion are regarded. In addition, we prove that flagpole spinor fields do not admit minimal coupling to the torsion. In general, mass dimension four couplings are deeply affected when singular-flagpoles-spinors are considered, instead of the usual Dirac spinors. We also construct a mapping between spinors in the covariant framework and spinors in Lorentz symmetry breaking scenarios, showing how one may transliterate spinors of different classes between the two cases. Specific examples concerning the mapping of Dirac spinor fields in Lorentz violating scenarios into flagpole and flag-dipole spinors with full Lorentz invariance (including the cases of Weyl and Majorana spinors) are worked out. (AU) | |
| FAPESP's process: | 13/22079-8 - Physics of particles and fields: standard model and its extensions |
| Grantee: | Adriano Antonio Natale |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 15/10270-0 - Fluid / gravity correspondence and applications |
| Grantee: | Roldão da Rocha |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 14/24672-0 - Symmetries and physics beyond the standard model |
| Grantee: | Alysson Fábio Ferrari |
| Support Opportunities: | Regular Research Grants |