Zobrazeno 1 - 10
of 119
pro vyhledávání: '"Abdalla, M. C. B."'
We perform an analysis of photometric redshifts estimated by using a non-representative training sets in magnitude space. We use the ANNz2 and GPz algorithms to estimate the photometric redshift both in simulations as well as in real data from the Sl
Externí odkaz:
http://arxiv.org/abs/1804.03805
Publikováno v:
The European Physical Journal C, Volume 75, 432 (2015)
In this work we deal with the spacetime shaped by a straight cosmic string, emerging from local gauge theories, in the braneworld gravity context. We search for physical consequences of string features due to the modified gravitational scenario encod
Externí odkaz:
http://arxiv.org/abs/1507.03968
In this paper we consider a static domain wall inside a 3-brane. Differently of the standard achievement obtained in General Relativity, the analysis performed here gives a consistency condition for the existence of static domain walls in a braneworl
Externí odkaz:
http://arxiv.org/abs/1312.4396
We revisit the dynamical system based approach of spherically symmetric vacuum braneworlds, pointing out and studying the existence of a transcritical bifurcation as the dark pressure parameter changes its sign, we analyze some consequences of not di
Externí odkaz:
http://arxiv.org/abs/1212.2045
We study the dynamics of the noncommutative fuid in the Snyder space perturbatively at the first order in powers of the noncommutative parameter. The linearized noncommutative fluid dynamics is described by a system of coupled linear partial differen
Externí odkaz:
http://arxiv.org/abs/1211.3001
Autor:
Abdalla, M. C. B., Farias, R. L. S., Helayël-Neto, J. A., Nedel, Daniel L., Senise Jr, Carlos R.
Publikováno v:
Phys.Rev. D86 (2012) 085024
In this work, we adopt the simplest model that spontaneously breaks supersymmetry, namely, the minimal O'Raifeartaigh model. The effective potential is computed in the framework of the linear delta expansion (LDE) approach up to the order $\delta^2$,
Externí odkaz:
http://arxiv.org/abs/1206.4331
In this paper, we construct for the first time the non-commutative fluid with the deformed Poincare invariance. To this end, the realization formalism of the noncommutative spaces is employed and the results are particularized to the Snyder space. Th
Externí odkaz:
http://arxiv.org/abs/1206.3982
Publikováno v:
Phys.Rev. D85 (2012) 125032
We adopt a superspace/supergraph formalism to pursue the investigation of the structure of one- and two-loop divergences in the frame of the minimal O'Raifeartaigh model that realizes the F-term spontaneous supersymmetry breaking. The linear delta ex
Externí odkaz:
http://arxiv.org/abs/1203.3891
Publikováno v:
Phys.Rev.D82:125029,2010
All-order spurion-corrected superpropagators and superfield Feynman rules are employed to systematically compute a two-loop corrected effective potential for the O'Raifeartaigh model, that realizes spontaneous supersymmetry breaking. Though the shift
Externí odkaz:
http://arxiv.org/abs/1008.5295
Publikováno v:
JHEP 1009:051,2010
In this work, we review and extend the so-called consistency conditions for the existence of a braneworld scenario in arbitrary dimensions in the Brans-Dicke (BD) gravitational theory. After that, we consider the particular case of a five-dimensional
Externí odkaz:
http://arxiv.org/abs/1001.1075