[PDF] Top 20 Braz. J. Phys. vol.34 número4A

... This special issue of the Brazilian Journal of Physics, with the proceedings of the XXIV ENFPC, con- tains the plenary, parallel and summary talks. The short oral communications are available in the confe- rence web ... See full document

... Elisa, para mim, ´e uma pessoa singular. Professora, pes- quisadora, amiga e conselheira, conhec¸o-a h´a mais de 41 anos, ou seja h´a tanto tempo quanto faz desde minha pri- meira real introduc¸˜ao, por suas m˜aos, a um ... See full document

... J/Ψ production at RHIC and LHC is studied, including energy loss and saturation of partonic distribution function considering parton recombination, and multiple scatterings of the c¯ c with the medium, comparing ... See full document

... A summary of the contributions on experimental high energy physics to the XXIV Brazilian National Meeting on Particle and Fields is presented.. There were 5 invited talks and 32 submitte[r] ... See full document

... We discuss the one-loop quantum corrections to the mass M and central charge Z of supersymmetric (susy) solitons: the kink, the vortex and the monopole.. Contrary to previous expectation[r] ... See full document

... In an analogous problem but using a more traditional approach to quantum gravity, the Arnowitt-Deser-Misner (ADM) quantization, together with the de Broglie-Bohm in- terpretation of quan[r] ... See full document

... In this paper we study the local persistence of the two–dimensional Blume–Capel Model by extending the concept of Glauber dynamics. We verify that for any value of the ratio α = D/J between anisotropy D and ... See full document

... We measured a strong coupling regime only for low excitation regime with the white light reflectance spectrum (Fig. 1b), and we do not know how far this strong regime remain when we incr[r] ... See full document

... We analyzed the dayside geomagnetic field line topology at three special time periods characterized by inclination of the Earth’s rotation axis to the Sun direction: summer and win- ter [r] ... See full document

... ner (or other pseudo-probability function) distribution is to solve the appropriate Fokker-Planck equation. With a trap- ped BEC, this is complicated by the fact that the equation for the Wigner function has third-order ... See full document

... We have measured the collisional loss rate for cold strontium atoms held in a magneto-optical trap as a func- tion of light intensity in the regime of low intensity (2 − 6 mW/cm.. The re[r] ... See full document

... We offer a summary of the talks, oral communications and posters presented at the field theory section of the XXIV Brazilian National Meeting on Particles and Fields.. The XXIV Brazilian[r] ... See full document

... Ideally, one detector would be placed as close to the reactor as possible to maximize the total neutrino flux and minimize any os- cillation, while the second detector would be placed at[r] ... See full document

... Finding more general solutions needs new angles of at- tack. A very fruitful approach was developed in [10] by exploiting an isomorphism between the algebra of functions with the noncomm[r] ... See full document

... Using the factorization approximation[4, 5, 7, 8], we can relate the twist-four parton matrix elements of the nucleus to the twist-two parton distributions of nucleons and the nu-.. Here[r] ... See full document

... GeV). The problem that motivates SUSY at elec- troweak scale is the fine tuning problem that is a conse- quence of this big hierarchy: if we treat the SM as an effec- tive theory and ext[r] ... See full document

... However, in order to know precisely where a given model lies on the straight line requires the knowledge of N ∗ which, in turns, depends on the parameters describing inflation like, for [r] ... See full document

... Quantum field theory, being the natural framework for the quantum description of interacting many-particle sys- tems, found a fertile field of applications, precisely in the description [r] ... See full document

... [3] N.A. Nekrasov and M. Douglas, Rev. Mod. Phys. 73, 977 (2002); R. J.Szabo, Phys. Rept. 378, 207 (2003); M. Gomes, “Renormalization in Noncommutative Field Theory” in Pro- ceedings of the XI Jorge Andr´e ... See full document

... Then, one conclude that an effective theory for these condensates could have monopoles, flux tubes and monopole confinement, de- pending on the form of the potential.. In the dual theory[r] ... See full document