99 citations · 215 across the 10 of their papers we have counts for
10 papers
Graviton Excitations and Lorentz-Violating Gravity with Cosmological Constant
J. L. Boldo, J. A. Helayel-Neto, L. M. de Moraes +2
Motivated by the interest raised by the problem of Lorenz-symmetry violating gauge theories in connetion with gravity models, this contribution sets out to provide a general method…
Remarks on the Causality, Unitarity and Supersymmetric Extension of the Lorentz and CPT-Violating Maxwell-Chern-Simons Model
A. P. Baeta Scarpelli, H. Belich, J. L. Boldo +3
The gauge-invariant Chern-Simons-type Lorentz- and CPT-breaking term is here re-assessed and issues like causality, unitarity, spontaneous gauge-symmetry breaking are investigated.…
Topological Yang-Mills Theories and Their Observables: a Superspace Approach
Jose Luiz Boldo, Clisthenis P. Constantinidis, Francois Gieres +2
Witten's observables of topological Yang-Mills theory, defined as classes of an equivariant cohomology, are reobtained as the BRST cohomology classes of a superspace version of the…
Aspects of Causality and Unitarity and Comments on Vortex-like Configurations in an Abelian Model with a Lorentz-Breaking Term
A. P. Baeta Scarpelli, H. Belich, J. L. Boldo +1
The gauge-invariant Chern-Simons-type Lorentz- and CPT-breaking term is here reassessed and a spin-projector method is adopted to account for the breaking (vector) parameter. Issue…
Discussing the Spectrum of the Kalb-Ramond Field Coupled to 3D-Gravity
J. L. Boldo, J. A. Helayel-Neto, N. Panza
The mechanism of dynamical mass generation for the gauge field is studied through 1-loop. We find out that torsion is an obstruction to the appearance of a 1-loop mass correction.…
Symmetry aspects of fermions coupled to torsion and electromagnetic fields
J. L. Boldo, C. A. G. Sasaki
We study and explore the symmetry properties of fermions coupled to dynamical torsion and electromagnetic fields. The stability of the theory upon radiative corrections as well as…