Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Rodrigo F. Sobreiro"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 8, Pp 1-8 (2022)
Abstract In this work we make use of proper-time method to evaluate Schwinger effect in the presence of Lorentz-violating background fields. Specifically, we evaluate the one-loop effective Lagrangian in the presence of Lorentz-violating time-like ve
Externí odkaz:
https://doaj.org/article/f5efac86810f415183a2ecb64a116f4b
Autor:
Amanda Guerrieri, Rodrigo F. Sobreiro
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 3, Pp 1-29 (2021)
Abstract We consider the non-relativistic limit of gravity in four dimensions in the first order formalism. First, we revisit the case of the Einstein-Hilbert action and formally discuss some geometrical configurations in vacuum and in the presence o
Externí odkaz:
https://doaj.org/article/a0fbfa93afd5456a86982cd07cb150ad
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 77, Iss 12, Pp 1-10 (2017)
Abstract 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 perform
Externí odkaz:
https://doaj.org/article/f8230e95614a4a3293173bc289b165d8
Autor:
Rodrigo F. Sobreiro, Anderson A. Tomaz
Publikováno v:
Advances in High Energy Physics, Vol 2016 (2016)
Recently, a model for an emergent gravity based on SO(5) Yang-Mills action in Euclidian 4-dimensional spacetime was proposed. In this work we provide some 1- and 2-loop computations and show that the model can accommodate suitable predicting values f
Externí odkaz:
https://doaj.org/article/7f34837e40f94ad4b946ffa738206238
Autor:
Thiago S. Assimos, Rodrigo F. Sobreiro
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 1, Pp 1-13 (2020)
European Physical Journal
European Physical Journal
The equivalence between Chern-Simons and Einstein-Hilbert actions in three dimensions established by A.~Ach\'ucarro and P.~K.~Townsend (1986) and E.~Witten (1988) is generalized to the off-shell case. The technique is also generalized to the Yang-Mil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ecb045157cb6df2f8884a4d1256cef42
https://doaj.org/article/911a9ca0171e4caeb66f566007bfad84
https://doaj.org/article/911a9ca0171e4caeb66f566007bfad84
Publikováno v:
Physical Review D, 106, 1-14
Physical Review D, 106, 2, pp. 1-14
Physical Review
Physical Review D, 106, 2, pp. 1-14
Physical Review
We introduce a background gauge akin to the Landau-DeWitt gauge but deformed by the presence of a gauge parameter for the quantization of Euclidean Yang-Mills theories. In the limit where the background field vanishes, standard linear covariant gauge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cbdfd0cf15669c622d007ae4512b9370
http://hdl.handle.net/2066/283447
http://hdl.handle.net/2066/283447
Autor:
Rodrigo F. Sobreiro, Amanda Guerrieri
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 3, Pp 1-29 (2021)
Journal of High Energy Physics
Journal of High Energy Physics
We consider the non-relativistic limit of gravity in four dimensions in the first order formalism. First, we revisit the case of the Einstein-Hilbert action and formally discuss some geometrical configurations in vacuum and in the presence of matter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9011a54fd19f4eb3024235022197dead
https://doi.org/10.1007/jhep03(2021)104
https://doi.org/10.1007/jhep03(2021)104
Autor:
Rodrigo F. Sobreiro, O. C. Junqueira
Publikováno v:
Physical Review
We characterize the correspondence between the twisted $N=2$ super-Yang-Mills theory and the Baulieu-Singer topological theory quantized in the self-dual Landau gauges. While the first is based on an on-shell supersymmetry, the second is based on an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::01c0dd0d0f4c2b0bc919d8f26ba5780a
Publikováno v:
Physical Review
Recently, based on a new procedure to quantize the theory in the continuum, it was argued that Singer's theorem points towards the existence of a Yang-Mills ensemble. In the new approach, the gauge fields are mapped into an auxiliary field space used
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4568a71d44ea2991d393beab57c4d47b
http://arxiv.org/abs/2012.01952
http://arxiv.org/abs/2012.01952
Publikováno v:
Physical Review
In this work we investigate the effects of the Gribov prescription to get rid of zero-modes of the Faddeev-Popov operator, at one-loop order in perturbation theory, in the Landau-DeWitt gauge. Quantum fluctuations are taken around a transverse backgr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9baeb59145592e9a8f8563a04d298479
http://repo.scoap3.org/api
http://repo.scoap3.org/api