157 citations · 1.3k across the 76 of their papers we have counts for
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On the supersymmetric pseudo-QED
Van Sérgio Alves, M. Gomes, A. Yu. Petrov +1
Within the superfield approach, we discuss the three-dimensional supersymmetric (SUSY) pseudo-QED. We prove that it is all-loop renormalizable. We demonstrate that the SUSY pseudo-…
Gravitational corrections to two-loop beta function in quantum electrodynamics
L. Ibiapina Bevilaqua, M. Dias, A. C. Lehum +3
In this work, we use the framework of effective field theory to couple Einstein's gravity to quantum electrodynamics (QED) and determine the gravitational corrections to the two-lo…
Soft supersymmetry breaking in the nonlinear sigma model
L. Ibiapina Bevilaqua, A. C. Lehum, A. J. da Silva
In this work we discuss the dynamical generation of mass in a deformed supersymmetric nonlinear sigma model in a two-dimensional () space-time. We introduce the…
On the radiative corrections in the Horava-Lifshitz z=2 QED
M. Gomes, T. Mariz, J. R. Nascimento +2
We calculate one-loop contributions to the two and three point spinor-vector functions in z=2 Horava-Lifshitz QED. This allows us to obtain the anomalous magnetic moment.
Remarks on a Lorentz-breaking 4D chiral gauge theory
A. P. Baêta Scarpelli, M. Gomes, A. Yu. Petrov +1
We investigate a Lorentz-violating chiral model composed by two fermions, a complex scalar field and a gauge field. We show that by convenientely adjusting the parameters of the mo…
Large N limit of supersymmetric Chern-Simons-matter model: breakdown of superconformal symmetry
J. M. Queiruga, A. J. da Silva
In this work we study some properties of the three dimensional SUSY Chern-Simons coupled to a scalar field in the fundamental representation in the large limit. For larg…
Lorentz breaking supersymmetry and Horava-Lifshitz-like models
M. Gomes, J. Queiruga, A. J. da Silva
We present a Lorentz-breaking supersymmetric algebra characterized by a critical exponent . Such construction requires a non trivial modification of the supercharges and superde…
Effective field theory of quantum gravity coupled to scalar electrodynamics
L. Ibiapina Bevilaqua, A. C. Lehum, A. J. da Silva
In this work we use the framework of effective field theory to couple Einstein's gravity to scalar electrodynamics and determine the renormalization of the model through the study…
On one-loop corrections in the Horava-Lifshitz-like QED
M. Gomes, T. Mariz, J. R. Nascimento +3
We study the one-loop two point functions of the gauge, scalar and spinor fields for a Horava-Lifshitz-like QED with critical exponent . It turns out that, in certain cases, t…
Superfield Effective Potential for the Supersymmetric Topologically Massive Gauge theory in Four Dimensions
F. S. Gama, M. Gomes, J. R. Nascimento +2
We explicitly calculate the one-loop effective potential for the supersymmetric topologically massive gauge theory in four dimensions, where the chiral scalar superfield is directl…
On the Horava-Lifshitz-like extensions of supersymmetric theories
M. Gomes, J. R. Nascimento, A. Yu. Petrov +1
Within the superfield approach, we formulate two different extensions of the Wess-Zumino model and super-QED with Horava-Lifshitz-like additive terms, discuss their quantum propert…
On the generic higher-derivative N=2, d=3 gauge theory
F. S. Gama, M. Gomes, J. R. Nascimento +2
We formulate a generic three-dimensional superfield higher-derivative gauge theory coupled to the matter, which, in certain cases reduces to the thr…
On the one-loop effective potential in the higher-derivative four-dimensional chiral superfield theory with a nonconventional kinetic term
F. S. Gama, M. Gomes, J. R. Nascimento +2
We explicitly calculate the one-loop effective potential for a higher-derivative four-dimensional chiral superfield theory with a nonconventional kinetic term. We consider the case…
On the effective potential, Horava-Lifshitz-like theories and finite temperature
C. F. Farias, M. Gomes, J. R. Nascimento +2
We calculate the one-loop effective potential at finite temperature for the Horava-Lifshitz-like QED and Yukawa-like theories for arbitrary values of the critical exponent and the…
Braneworld solutions for F(R) models with non-constant curvature
D. Bazeia, A. S. Lobao, R. Menezes +2
This work deal with braneworld scenarios with generalized gravity. We investigate models where the potential of the scalar field is polynomial or nonpolynomial. We obtain exact and…
Supersymmetry breaking in the three-dimensional nonlinear sigma model
A. C. Lehum, A. J. da Silva
In this work we discuss the phase structure of a deformed supersymmetric nonlinear sigma model in a three-dimensional space-time. The deformation is introduced by a term that break…
Some Generalizations in Supersymmetric Quantum Mechanics and the Supersymmetric -System Revisited
E. A. Gallegos, A. J. da Silva, D. Spehler
We discuss two distinct aspects in supersymmetric quantum mechanics. First, we introduce a new class of operators A and in terms of anticommutators between the momentum o…
Gravitational corrections to the scattering in a massless quantum electrodynamics
B. Charneski, A. C. Lehum, A. J. da Silva
We discuss the role of gravitational corrections to the running of the electric charge through the evaluation of scattering amplitudes of charged particles in massless scalar elect…
On the many-field f(R) brane
D. Bazeia, R. Menezes, A. Yu. Petrov +1
We consider the Randall-Sundrum braneworld theory with a single extra dimension of infinite extent to investigate generalized braneworld models in the presence of several re…
Supergauge theories in aether superspace
A. C. Lehum, J. R. Nascimento, A. Yu. Petrov +1
Within the superfield method we extend the formulation of the Lorentz-breaking aether superspace for supergauge theories, both in three- and in four-dimensional cases.
Higher-Derivative Wess-Zumino Model in Three Dimensions
E. A. Gallegos, C. R. Senise, A. J. da Silva
We deform the well-known three dimensional Wess-Zumino model by adding higher derivative operators (Lee-Wick operators) to its action. The effects of these operator…
Effective potential for a SUSY Lee-Wick model: the Wess-Zumino case
M. Dias, A. Yu. Petrov, C. R. Senise +1
Using a superfield generalization of the tadpole method, we study the one-loop effective potential for a Wess Zumino model modified by a higher-derivative term, inspired by the Lee…
On the effective superpotential in the supersymmetric Chern-Simons theory with matter
M. Gomes, A. C. Lehum, J. R. Nascimento +2
We develop a superfield approach to the effective potential in the supersymmetric Chern-Simons theory coupled to matter, and, in Landau gauge, calculate the one-loop Kahlerian effe…
All-loop finiteness of the two-dimensional noncommutative supersymmetric gauge theory
M. Gomes, J. R. Nascimento, A. Yu. Petrov +1
Within the superfield approach, we discuss two-dimensional noncommutative super-QED. Its all-order finiteness is shown explicitly.