Search for Randall-Sundrum gravitons with 1 fb(-1) of data from p(p)over-bar collisions at root s=1.96 TeV

We search for decays of Kaluza-Klein excitations of the graviton in the Randall-Sundrum model of extra dimensions to e+e- and in 1 fb-1 of pp collisions at s=1.96 TeV collected by the D0 detector at the Fermilab Tevatron. We set 95% confidence level upper limits on the production cross section times branching fraction, which translate into lower limits on the mass of the lightest excitation between 300 and 900 GeV for values of the coupling k/M Pl between 0.01 and 0.1. © 2008 The American Physical Society.

Search for scalar neutrino superpartners in e+mu final states in p(p)over-bar collisions at root s=1.96 TeV

We report a search for R-parity-violating production and decay of sneutrino particles in the eμ final state with 1.04±0.06fb-1 of data collected with the D0 detector at the Fermilab Tevatron Collider in 2002-2006. Good agreement between the data and the standard model prediction is observed. With no evidence for new physics, we set limits on the R-parity-violating couplings λ311′ and λ312 as a function of the sneutrino mass. © 2008 The American Physical Society.

First study of the radiation-amplitude zero in W gamma production and limits on anomalous WW gamma couplings at root s=1.96 TeV

We present results from a study of pp̄→Wγ+X events utilizing data corresponding to 0.7fb-1 of integrated luminosity at s=1.96TeV collected by the D0 detector at the Fermilab Tevatron Collider. We set limits on anomalous WWγ couplings at the 95% C.L. The one-dimensional 95% C.L. limits are 0.49<κγ<1.51 and -0.12<λγ<0.13. We make the first study of the charge-signed rapidity difference between the lepton and the photon and find it to be indicative of the standard model radiation-amplitude zero in the Wγ system. © 2008 The American Physical Society.

Observation of a narrow mass state decaying into Υ(1S)+γ in pp̄ collisions at s=1.96 TeV

Using data corresponding to an integrated luminosity of 1.3fb -1, we observe a narrow mass state decaying into Υ(1S)+γ, where the Υ(1S) meson is detected by its decay into a pair of oppositely charged muons, and the photon is identified through its conversion into an electron-positron pair. The significance of this observation is 5.6 standard deviations. The mass of the state is centered at 10.551±0.014(stat) ±0.017(syst)GeV/c2, which is consistent with that of the state recently observed by the ATLAS Collaboration. © 2012 American Physical Society.

Measurement of angular correlations of jets at s=1.96 TeV and determination of the strong coupling at high momentum transfers

We present a measurement of the average value of a new observable at hadron colliders that is sensitive to QCD dynamics and to the strong coupling constant, while being only weakly sensitive to parton distribution functions. The observable measures the angular correlations of jets and is defined as the number of neighboring jets above a given transverse momentum threshold which accompany a given jet within a given distance δR in the plane of rapidity and azimuthal angle. The ensemble average over all jets in an inclusive jet sample is measured and the results are presented as a function of transverse momentum of the inclusive jets, in different regions of δR and for different transverse momentum requirements for the neighboring jets. The measurement is based on a data set corresponding to an integrated luminosity of 0.7 fb -1 collected with the D0 detector at the Fermilab Tevatron Collider in pp- collisions at s=1.96 TeV. The results are well described by a perturbative QCD calculation in next-to-leading order in the strong coupling constant, corrected for non-perturbative effects. From these results, we extract the strong coupling and test the QCD predictions for its running over a range of momentum transfers of 50-400 GeV. © 2012 Elsevier B.V.

Resolución 621(XXXI): Comité de Desarrollo y Cooperación del Caribe

Error en símbolo en tapa y contraportada (S/2006/20)

Resolution 621(XXXI): Caribbean Development and Cooperation Committee

Includes bibliography

A representação do homem político no principado romano: uma leitura das cartas de Plínio, o Jovem (96 a 113 d.C)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Notas de Población Vol.40 N° 96

Este número de la Revista Notas de población reúne cinco artículos que tratan diversos temas sociodemográficos de gran interés. El primer artículo, de Suzana Cavenaghi, se centra en la salud reproductiva de los jóvenes. En específico, presenta un panorama regional de la situación actual de la salud reproductiva de mujeres de 15 a 19 años y también analiza la fecundidad de esas mujeres. En el segundo artículo de Jorge Rodríguez Vignoli se examinan dos efectos de la migración interna en grandes ciudades de América Latina. En el tercer artículo, de Ignacio Pardo, Andrés Peri y Mario Real, se analiza el tránsito de la educación al trabajo en el Uruguay. El siguiente artículo, Magda Ruiz, Andreina Duarte, y Sebastián Carrasco aborda los antecedentes sobre el uso de preguntas retrospectivas para la aplicación de métodos indirectos destinados a la estimación de la mortalidad infantil en América Latina, Finalmente, José Marcos Pinto da Cunha en su investigación nos presenta un resumen de las consideraciones formuladas hasta ahora por los especialistas sobre el proceso migratorio interno del Brasil.

A municipalização do ensino fundamental: a política nacional de financiamento e a aplicação de recursos da educação pelos municípios do Estado de São Paulo após a Emenda Constitucional nº 14/96

Pós-graduação em Educação - FFC

Measurement of the p(p)over-bar -> W plus b plus X production cross section at root s=1.96 TeV D0 Collaboration

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)