248 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- R. Casana71 · h 23
- M. M. Ferreira4 profiles69 · h 19
- Edilberto O. Silva3 profiles59 · h 18
- L. B. Castro3 profiles36 · h 17
- M. Schreck27 · h 19
- F. M. Andrade22 · h 17
- F. Simas21 · h 11
- A. R. Gomes20 · h 19
- C. Filgueiras19 · h 17
- E. da Hora3 profiles17 · h 5
- D. Bazeia2 profiles16 · h 40
- J. Reis2 profiles16 · h 8
- Universidade Federal da ParaíbaBR41 papers
- Universidade Estadual Paulista (Unesp)BR27 papers
- Instituto Federal do MaranhãoBR26 papers
- Universidade Federal do CearáBR24 papers
- Universidade Estadual de Ponta GrossaBR23 papers
- Universidade Federal de Campina GrandeBR21 papers
- Universidade de São PauloBR16 papers
- Universidade Federal de LavrasBR16 papers
- Universidade Federal do Espírito SantoBR16 papers
- Universidade Federal de Santa CatarinaBR15 papers
- Centro Brasileiro de Pesquisas FísicasBR14 papers
- Universidade Estadual da Região Tocantina do MaranhãoBR12 papers
19 papers · 1 filter
Alternative classical Lagrangians for the Standard-Model Extension
João A. A. S. Reis, Marco Schreck, Ronaldo Thibes
The current paper introduces classical, relativistic Lagrangians for point-particle analogs to the field theory description of the Standard-Model Extension (SME) for Lorentz violat…
Vacuum Cherenkov Radiation for Nonminimal Isotropic Lorentz Violation
Albert Yu. Petrov, Marco Schreck, Alexandre R. Vieira
In this work, we study the effects of vacuum Cherenkov radiation caused by nonminimal dimension-5 Lorentz-violating (LV) operators in the fermion sector. Explicitly, we focus on tw…
Constraining CPT-odd electromagnetic chiral parameters with pulsar timing
Filipe S. Ribeiro, Pedro D. S. Silva, Manoel M. Ferreira
The arrival time of electromagnetic signals traveling in chiral cosmic media is investigated in the context of Maxwell-Carroll-Field-Jackiw electrodynamics. Considering the interst…
Physical interpretation of large Lorentz violation via Weyl semimetals
Alan Kostelecky, Ralf Lehnert, Marco Schreck +1
The physical intepretation of effective field theories of fundamental interactions incorporating large Lorentz violation is a long-standing challenge, known as the concordance prob…
Oscillatory properties of strange quark stars described by the vector MIT bag model
Luiz L. Lopes, Jose C. Jimenez, Luis B. Castro +1
We investigated the radial and non-radial fundamental () mode oscillations of self-bound (quark) stars obtained after employing the Vector MIT (vMIT) bag model. Within this mode…
New Constraint for Isotropic Lorentz Violation from LHC Data
David Amram, Killian Bouzoud, Nicolas Chanon +3
New calculations for the kinematics of photon decay to fermions in vacuo under an isotropic violation of Lorentz invariance (LV), parameterized by the Standard-Model Extension (SME…
Imprints of the nuclear symmetry energy slope in gravitational wave signals emanating from neutron stars
Luiz L. Lopes, Victor B. T. Alves, César O. V. Flores +1
We investigate possible traces of the nuclear symmetry energy slope () in the gravitational wave emission of neutron stars. For fixed stellar mass values, we examine how the slo…
Impact of Lorentz violation on anomalous magnetic moments of charged leptons
Andreas Crivellin, Fiona Kirk, Marco Schreck
We address the question whether a violation of Lorentz symmetry can explain the tension between the measurement and the Standard-Model prediction of the anomalous magnetic moment o…
Implications of gauge invariance for constraints on Lorentz violation
Andreas Crivellin, Fiona Kirk, Marco Schreck
Lorentz invariance is one of the basic ingredients of quantum field theories and violations of it are stringently constrained experimentally. Therefore, the possibility of Lorentz…
Constraining EDM and MDM lepton dimension five interactions in the electroweak sector
Jonas B. Araujo, Victor E. Mouchrek-Santos, Frederico E. P. dos Santos +2
We investigate dimension five Lorentz-violating nonminimal interactions in the electroweak sector, in connection with the possible generation of electric dipole moment (EDM), weak…
Lepton Flavor Violation and Collider Searches in a Type I + II Seesaw Model
Manoel M. Ferreira, Tessio B. de Melo, Sergey Kovalenko +2
Neutrino are massless in the Standard Model. The most popular mechanism to generate neutrino masses are the type I and type II seesaw, where right-handed neutrinos and a scalar tri…
Constraining dimension-six nonminimal Lorentz-violating electron-nucleon interactions with EDM physics
Jonas B. Araujo, A. H. Blin, Marcos Sampaio +1
The electric dipole moment (EDM) of an atom could arise also from -odd and -odd electron-nucleon couplings. In this work we investigate a general class of dimension- elect…
A dimension five Lorentz-violating nonminimal coupling for mesons in the KLZ model
Victor E. Mouchrek-Santos, Manoel M. Ferreira, Carlisson Miller
We investigate a dimension five Lorentz-violating (LV) nonminimal coupling between the neutral vector meson field strength and the pion current in the context of the Kroll-Lee-Zumi…
Lorentz-violating contributions to the nuclear Schiff moment and nuclear EDM
Jonas B. Araujo, Rodolfo Casana, Manoel M. Ferreira
In the context of an atom endowed with nuclear electric dipole moment (EDM), we consider the effects on the Schiff moment of -even Lorentz-violating (LV) terms that modify the…
Lorentz-violating nonminimal coupling contributions in mesonic hydrogen atoms and generation of photon higher-order derivative terms
R. Casana, J. S. Rodrigues, F. E. P. dos Santos
We have studied the contributions of Lorentz-violating CPT-odd and CPT-even nonminimal couplings to the energy spectrum of the mesonic hydrogen and the higher-order radiative corre…
Vacuum Cherenkov radiation for Lorentz-violating fermions
M. Schreck
The current work focuses on the process of vacuum Cherenkov radiation for Lorentz-violating fermions that are described by the minimal Standard-Model Extension (SME). To date, most…
Constraining CPT-odd nonminimal interactions in the Electroweak sector
Victor E. Mouchrek-Santos, Manoel M. Ferreira
In this work, we propose two possibilities of CPT-odd and Lorentz-violating (LV) nonminimal couplings in the Electroweak sector. These terms are gauge-invariant and couple a fixed…
General CPT-even dimension-five nonminimal couplings between fermions and photons yielding EDM and MDM
Jonas B. Araujo, Rodolfo Casana, Manoel M. Ferreira
In this letter, we examine a new class of CPT-even nonminimal interactions, between fermions and photons, deprived of higher order derivatives, that yields electric dipole moment (…
Constraining CPT-even and Lorentz-violating nonminimal couplings with the electron magnetic and electric dipole moments
Jonas B. Araujo, Rodolfo Casana, Manoel M. Ferreira
We analyse some dimension-five CPT-even and Lorentz-violating nonminimal couplings between fermionic and gauge fields in the context of the Dirac equation. After evaluating the non…