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Mesure DE La Section Efficace DE Production DE Paires DE Quarks Top Dans L'Etat Final DI-Electron Avec Les Donnees Collectees Par L'Experience d0 AU Runiia

Description: The top quark has been discovered in 1995 by CDF and D0 collaborations in proton-antiproton collisions at the Tevatron. The amount of data recorded by both experiments makes it possible to accurately measure the properties of this very massive quark. This thesis is devoted to the measurement of the top pair production cross-section via the strong interaction, in a final state composed of two electrons, two particle jets and missing transverse energy. It is based on a 1 fb{sup -1} data set colle… more
Date: September 1, 2008
Creator: Martin Dit Latour, Bertrand & /LPSC, Grenoble
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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Mesure DU Rapport D'Embranchement ET DU Facteur Deforme DE La D_Sint_Gration b0 to Pilnu, ET D_Termination DE |Vub| Avec Unetechnique DE Reconstruction Rel_Ch_E DU Neutrinoac

Description: The authors report the results of a study of the exclusive charmless semileptonic decay, B{sup 0} {yields} {pi}{sup -}{ell}{sup +}{nu}, undertaken with approximately 227 million B{bar B} pairs collected at the {Upsilon}(4S) resonance with the BABAR detector. The analysis uses events in which the signal B decays are reconstructed with an innovative loose neutrino reconstruction technique. They obtain partial branching fractions in 12 bins of q{sup 2}, the momentum transfer squared, from which th… more
Date: July 17, 2007
Creator: Cote, David & U., /Montreal
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
open access

Promouvoir Une Energie Durable Pour Tous (French Fact Sheet)

Description: The Clean Energy Solutions Center, an initiative of the Clean Energy Ministerial and UN-Energy, helps governments design and adopt policies and programs that support the deployment of transformational low-carbon technologies. The Solutions Center serves as a first-stop clearinghouse of clean energy policy reports, data, and tools and provides expert assistance and peer-to-peer learning forums. This factsheet highlights key Solutions Center offerings, including 'ask an expert' assistance on clea… more
Date: June 1, 2012
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Comparison of Effectiveness of Sub-Slab Ventilation Systems for Indoor Radon Mitigation: A Numerical Study; Comparaison a L`Aide D`Un Outil Numerique DE L`Efficacite Des Systemes DE Ventilation Active DU SOL Limitant La Penetration DU Radon Dans L`Habitat

Description: The functioning of an active sub-slab ventilation system (SVS) has been studied successfully with the help of a previously evaluated numerical model. The parameters explored are the permeability of the sub-slab and the gravel placed beneath it, the amplitude of applied pressure at the installation point of the system and the functioning method: depressurization or pressurization. The mechanisms contributing to the success of the two systems are identified. This numerical study shows that the pr… more
Date: April 1, 1992
Creator: Bonnefous, Y. C.; Gadgil, A. J. & Allard, F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Study of correlations between photoproduced pairs of charmed particles at Experiment E831/FOCUS

Description: The authors present the study of the charm-pair correlations produced in photon-nucleon interactions at <E{sub {gamma}}> = 175 GeV/c, by the Fermilab fixed target experiment E831/FOCUS. The E831/FOCUS experiment produced and reconstructed over one million charm particles. This high statistics allows the reconstruction of more than 7000 charm-pair mesons D{bar D}, 10 times the statistic of former experiments, and also allows to get, for the first time, about 600 totally reconstructed charm… more
Date: August 1, 2008
Creator: Castromonte Flores, Cesar Manuel & /Rio de Janeiro, CBPF
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
open access

Study of CP Symmetry Violation in the Charmonium-K*(892) Channel By a Complete Time Dependent Angular Analysis (BaBar Experiment)

Description: This thesis presents the full-angular time-dependent analysis of the vector-vector channel B{sub d}{sup 0} {yields} J/{psi}(K{sub S}{sup 0}{pi}{sup 0})*{sup 0}. After a review of the CP violation in the B meson system, the phenomenology of the charmonium-K*(892) channels is exposed. The method for the measurement of the transversity amplitudes of the B {yields} J/{psi}K*(892), based on a pseudo-likelihood method, is then exposed. The results from a 81.9 fb{sup -1} of collected data by the BABAR… more
Date: September 18, 2006
Creator: T'Jampens, Stephane & /Orsay
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Measurement of Cross Section of Quark Pair Production Top With the d0 Experiment at the Tevatron and Determination the Top Quark Mass Using This Measure

Description: The top quark has been discovered by CDF and D0 experiments in 1995 at the proton-antiproton collider Tevatron. The amount of data recorded by both experiments makes it possible to accurately study the properties of this quark: its mass is now known to better than 1% accuracy. This thesis describes the measurement of the top pair cross section in the electron muon channel with 4, 3 fb<sup> -1</sup> recorded data between 2006 and 2009 by the D0 experiment. Since the final state included a muon, … more
Date: June 1, 2010
Creator: Chevalier-Thery, Solene
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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