Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Manoel M. Ferreira"'
Autor:
Manoel M. Ferreira, Tessio B. de Melo, Sergey Kovalenko, Paulo R. D. Pinheiro, Farinaldo S. Queiroz
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 11, Pp 1-16 (2019)
Abstract Neutrinos 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 triplet are augmented to the Standard Model, respectively. In t
Externí odkaz:
https://doaj.org/article/924f7368a1bf44a494d35804703b79d8
Autor:
Jonas B. Araujo, Victor E. Mouchrek-Santos, Frederico E.P. dos Santos, Pedro D.S. Silva, Manoel M. Ferreira, Jr
Publikováno v:
Physics Letters B, Vol 811, Iss , Pp 135839- (2020)
We investigate dimension-five Lorentz-violating (LV) nonminimal interactions in the electroweak sector, in connection with the possible generation of electric dipole moment (EDM), weak electric dipole moment (WEDM), magnetic dipole moment (MDM) and w
Externí odkaz:
https://doaj.org/article/f620027e250148e79818bb1d3645aead
Autor:
Manoel M. Ferreira, Jr., Jose A. Helayël-Neto, Carlos M. Reyes, Marco Schreck, Pedro D.S. Silva
Publikováno v:
Physics Letters B, Vol 804, Iss , Pp - (2020)
In this work we focus on the Carroll-Field-Jackiw (CFJ) modified electrodynamics in combination with a CPT-even Lorentz-violating contribution. We add a photon mass term to the Lagrange density and study the question whether this contribution can ren
Externí odkaz:
https://doaj.org/article/fc2eebcfcb7041b487f0f1ad7c3133d3
Publikováno v:
Nuclear Physics B, Vol 945, Iss , Pp - (2019)
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-Zumino (KLZ) model. In this modified model we study the vector meson domin
Externí odkaz:
https://doaj.org/article/0fb789d2fa4e4bd289cefa5bea87ad81
Publikováno v:
Physics Letters B, Vol 760, Iss C, Pp 302-308 (2016)
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 (EDM) and magnetic dipole moment (MDM) in the context of the Dirac equa
Externí odkaz:
https://doaj.org/article/e75193acbb6c466897670f58dfbd4480
Publikováno v:
Symmetry, Vol 10, Iss 8, p 302 (2018)
In this work, we reassess two known processes of Quantum Electrodynamics involving electrons and muons. The photon propagator is modified by a CPT-even Lorentz-violating (LV) tensor, while fermion lines and the vertex interaction are not altered. Usi
Externí odkaz:
https://doaj.org/article/0e22d7ae14e34e75920228cbddc380ff
Autor:
Pedro D. S. Silva, Manoel M. Ferreira
Publikováno v:
Physical Review B. 107
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3c2b2c525e79673a9e1acaea5c8cb8b
https://doi.org/10.1103/physrevb.107.179902
https://doi.org/10.1103/physrevb.107.179902
Publikováno v:
Physical Review A. 106
The Maxwell equations and the constitutive relations describe the classical propagation of electromagnetic waves in continuous matter. Here, we investigate the effects stemming from extended constitutive relations on the propagation of waves in bi-is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44f3b4417e7dda0060441d27e97c08a6
https://doi.org/10.1103/physreva.106.042205
https://doi.org/10.1103/physreva.106.042205
Bi-isotropic media constitute a proper scenario for scrutinizing optical effects stemming from magnetoelectric parameters. Chiral magnetic current is a macroscopic effect arising from the chiral magnetic effect that enriches the phenomenology of a cl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc50d6b1418c25a957ee857958223aa1
http://arxiv.org/abs/2207.03888
http://arxiv.org/abs/2207.03888
Publikováno v:
Physical Review
The Chiral Magnetic Effect (CME) has been investigated as a new transport phenomenon in condensed matter. Such an effect appears in systems with chiral fermions and involves an electric current generated by a magnetic field by means of an "exotic" ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1a0fabd3031faf84687257ed34e3716
http://arxiv.org/abs/2006.02022
http://arxiv.org/abs/2006.02022