Zobrazeno 1 - 8
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pro vyhledávání: '"T. R. S. Santos"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 77, Iss 4, Pp 1-10 (2017)
Abstract We show that the four-dimensional Lovelock–Cartan action can be derived from a massless gauge theory for the SO(1, 3) group with an additional BRST trivial part. The model is originally composed of a topological sector and a BRST exact pie
Externí odkaz:
https://doaj.org/article/d60c803ee4344eea8939803ad5431a68
Autor:
T. R. S. Santos, A. A. Tomaz, O. C. Junqueira, G. Sadovski, R. F. Sobreiro, Antonio D. Pereira
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 77, Iss 4, Pp 1-10 (2017)
European Physical Journal C
European Physical Journal C
We show that the four-dimensional Lovelock-Cartan action can be derived from a massless gauge theory for the $SO(1,3)$ group with an additional BRST trivial part. The model is originally composed by a topological sector and a BRST exact piece and has
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d9d5a586dae07af3a51ad40252b9448
http://link.springer.com/article/10.1140/epjc/s10052-017-4820-y
http://link.springer.com/article/10.1140/epjc/s10052-017-4820-y
Autor:
T. R. S. Santos, Rodrigo F. Sobreiro
Publikováno v:
Brazilian Journal of Physics. 46:437-452
In this work, we employ algebraic renormalization technique to show the renormalizability to all orders in perturbation theory of the Lorentz and CPT violating QED. Essentially, we control the breaking terms by using a suitable set of external source
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09004f55b73b4357f009347e5c64bebd
https://doi.org/10.1007/s13538-016-0423-6
https://doi.org/10.1007/s13538-016-0423-6
Autor:
T. R. S. Santos, Rodrigo F. Sobreiro
In this work we study the issue of gauge anomalies in Lorentz-violating QED. To do so, we opt to use the Becchi-Rouet-Stora-Tyutin formalism within the algebraic renormalization approach, reducing our study to a cohomology problem. Since this approac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e79a62c8cac26a0934d6fadff4103a45
http://arxiv.org/abs/1607.07413
http://arxiv.org/abs/1607.07413
Autor:
T. R. S. Santos, Rodrigo F. Sobreiro
Publikováno v:
European Physical Journal C
European Physical Journal C: Particles and Fields, Vol 77, Iss 12, Pp 1-10 (2017)
European Physical Journal C: Particles and Fields, Vol 77, Iss 12, Pp 1-10 (2017)
We analyze the Chern-Simons-like term generation in the CPT-odd Lorentz-violating Yang-Mills theory interacting with fermions. Moreover, we study the anomalies of this model as well as its quantum stability. The whole analysis is performed within the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d58d126b133e0352261a606f6261e5d2
The spectrum of the massive CPT-odd Yang-Mills propagator with Lorentz violation is performed at tree-level. The modification is due to mass terms generated by the exigence of multiplicative renormalizability of Yang-Mills theory with Lorentz violati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ab898bdb7a3533aa8cf66172185daa4
Autor:
A. A. Tomaz, Thiago S. Assimos, Antonio D. Pereira, T. R. S. Santos, V. J. Vasquez Otoya, Rodrigo F. Sobreiro
Publikováno v:
International Journal of Modern Physics D. 26:1750087
From pure Yang–Mills action for the [Formula: see text] group in four Euclidean dimensions we obtain a gravity theory in the first order formalism. Besides the Einstein–Hilbert term, the effective gravity has a cosmological constant term, a curva
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71adef26d0e7d344880355af054e0c79
https://doi.org/10.1142/s0218271817500870
https://doi.org/10.1142/s0218271817500870
Autor:
Rodrigo F. Sobreiro, T. R. S. Santos
We show that pure Yang-Mills theories with Lorentz violation are renormalizable to all orders in perturbation theory. To do this, we employ the algebraic renormalization technique. Specifically, we control the breaking terms with a suitable set of ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb95e5d4589a4572e8da248fb581b9b9
http://arxiv.org/abs/1404.4846
http://arxiv.org/abs/1404.4846