272 citations · 598 across the 16 of their papers we have counts for
16 papers
Topological insulator realization induced by fermionic interaction through BF mediators
G. B. de Gracia, R. da Rocha, A. A. Nogueira +1
This paper demonstrates that ordinary fermions, interacting via a BF mediator, form a renormalized structure with non-trivial topological properties. We explore the analogy between…
Hermitian formulation for mass dimension one fermions: Flat and curved space-times
Gabriel Brandão de Gracia, Rodolfo José Bueno Rogerio
Throughout this paper, we conduct our discussion by a partial review of Elko's Hermiticity, introducing the Hermitian formulation for interacting mass dimension one fermions based…
Unraveling the Physical Meaning Behind Elko's Dual structure
Gabriel Brandão de Gracia, Rodolfo José Bueno Rogerio, Luca Fabbri
In this work, we shall analyze the necessity of a proper definition of the dual structure for Elko spinors, and singular spinors in general. We examine in detail why the Dirac dual…
On Wigner Degeneracy in Elko theory: Hermiticity and Dark Matter
G. B. de Gracia, Roldão da Rocha, R. J. Bueno Rogerio +1
In this paper, we provide a set of Hermitian interactions for quantum fields based on Elko, considering the recent achievements concerning the most general form of singular spinors…
Covariant operator formalism for higher derivative systems: Vector spin- dual model as a prelude to generalized QED
G. B. de Gracia, A. A. Nogueira
In this work we extend the Kugo-Ojima-Nakanishi covariant operator formalism to quantize two higher derivative systems, considering their extended phase space structures. More spec…
Duality as a Method to Derive a Gauge Invariant Massive Electrodynamics and New Interactions
G. B. de Gracia, B. M. Pimentel
Taking into account the recent developments associated with duality in physics, this article is focused on investigating the properties of a tensor generalization of the electrodyn…
Irreducible representations of the inhomogeneous Lorentz group with two-fold Wigner degeneracy
Dharam Vir Ahluwalia, G. B. de Gracia, Julio M. Hoff da Silva +2
Not all complete set of spinors can be used as expansion coefficients of a quantum field. In fact, Steven Weinberg established the uniqueness of Dirac spinors for this purpose prov…
On valley asymmetry in a topological interaction for quasi-particles
G. B. de Gracia, B. M. Pimentel, R. da Rocha
This paper is focused on investigating the effects of a statistical interaction for graphene-like systems, providing Haldane-like properties for topologically trivial lattices. The…
Fermionic dark matter-photon quantum interaction: A mechanism for darkness
G. B. de Gracia, A. A. Nogueira, R. da Rocha
Mass dimension one fermionic fields are prime candidates to describe dark matter, due to their intrinsic neutral nature, as they are constructed as eigenstates of the charge conjug…
Fermionic dark matter interaction with the photon and the proton in the quantum field-theoretical approach and generalizations
G. B. de Gracia, R. da Rocha
Mass dimension one quantum fields, constructed upon eigenspinors of the charge conjugation operator with dual helicity (ELKO), are prime candidates to describe dark matter. Their i…
A Generalized Stueckelberg-Higgs gauge theories
C. A. Bonin, G. B. de Gracia, A. A. Nogueira +1
The aim of this work is to discuss and explore some generalized aspects of generation of photon mass respecting gauge symmetry. We introduce generalized Stueckelberg and Higgs gaug…
Simple prescription for computing the nonrelativistic interparticle potential energy related to dual models
G. B. de Gracia, G. P. de Brito
Following a procedure recently utilized by Accioly et al. to obtain the D-dimensional interparticle potential energy for electromagnetic models in the nonrelativistic limit, and re…
Polarised Quark Distributions in the Nucleon from Semi-Inclusive Spin Asymmetries
Spin Muon Collaboration
We present a measurement of semi-inclusive spin asymmetries for positively and negatively charged hadrons from deep inelastic scattering of polarised muons on polarised protons and…
Spin Structure of the Proton from Polarized Inclusive Deep-Inelastic Muon-Proton Scattering
D. Adams
We have measured the spin-dependent structure function in inclusive deep-inelastic scattering of polarized muons off polarized protons, in the kinematic range $0.003 < x <…
Large enhancement of deuteron polarization with frequency modulated microwaves
The SMC Collaboration
We report a large enhancement of 1.7 in deuteron polarization up to values of 0.6 due to frequency modulation of the polarizing microwaves in a two liters polarized target using th…
Spin Asymmetry in Muon--Proton Deep Inelastic Scattering on a Transversely-Polarized Target
The Spin Muon Collaboration
We measured the spin asymmetry in the scattering of 100 GeV longitudinally-polarized muons on transversely polarized protons. The asymmetry was found to be compatible with zero in…