8 papers
On the Electric Charge Quantization from the Dirac-Aharonov-Bohm Potential
F. A. Barone, J. A. Helayel-Neto
The purpose of this paper is to show that, under certain restrictions, we can take a Dirac-Aharonov-Bohm potential as a pure gauge field. We argue that a modified quantization cond…
Recent Results on N=2,4 Supersymmetry with Lorentz Symmetry Violating
Wander G. Ney, J. A. Helayel-Neto, Wesley Spalenza
In this work, we propose the N=2 and N=4 supersymmetric extensions of the Lorentz-breaking Abelian Chern-Simons term. We formulate the question of the Lorentz violation in 6 and 10…
Off-Shell Extended Supersymmetries and Lorentz-Violating Abelian Gauge Models
Wander G. Ney, J. A. Helayel-Neto, Wesley Spalenza
In this work, we propose the N=2 and N=4 supersymmetric extensions realized off-shell of the Abelian gauge model with Chern-Simons Lorentz-breaking term. We start with the theory i…
Hyperbolic Space Forms and Orbifold Compactification in M-Theory
A. A. Bytsenko, M. E. X. Guimaraes, J. A. Helayel-Neto
We analyze solutions of string theory and supergravity which involve real hyperbolic spaces. Examples of string compactifications are given in terms of hyperbolic coset spaces of f…
On the Potentials of Supersymmetric Theories with Gauge-Field Mixing Terms
Cristine N. Ferreira, Helder Chavez, Jose A. Helayel-Neto
In this letter, we reconsider the delicate issue of symmetry and supersymmetry breakings for gauge theories with gauge-field mixings. The purpose is to study generalyzed potentials…
The N = 2 and N = 4 Supersymmetric Extensions of the Lorentz- and CPT-Violating Term in Abelian Gauge Theories
Wander G. Ney, J. A. Helayel-Neto, Wesley Spalenza
In this work, we propose the N=2 and N=4 supersymmetric extensions of the Lorentz-breaking Abelian Chern-Simons term. We formulate the question of the Lorentz violation in 6 and 10…