552,860 research outputs found

    Jet Physics at Tevatron

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    An overview of Run I jet physics at the ppbar Fermilab Tevatron Collider with a particular emphasis on inclusive jet cross section measurements is given. The impact of these studies on PDFs constrain from global fits is underlined. Preliminary results on inclusive jet and di-jet mass cross section measurements in Run II are then summarized.Comment: Presented at 15th Conference on High-Energy Physics (IFAE 2003), Lecce, Italy, 23-26 Apr 200

    QCD Physics at the Tevatron

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    Results on recent QCD measurements performed at the Tevatron ppbar Collider at sqrt{s} = 1.96 TeV are here reported. The inclusive jet and dijet mass cross sections are compared to NLO pQCD calculations and to Run I results. The production rates and kinematic properties of W + jets production processes are compared to ``enhanced'' LO theoretical predictions. Non-perturbative ``soft'' interactions leading to the underlying event are studied and compared to QCD Monte Carlo phenomenological models.Comment: Presented at 18th Les Rencontres De Physique De La Vallee D'Aoste: Results and Perspectives in Particle Physics, La Thuile, Aosta Valley, Italy, Feb. 29 - March 6, 200

    The TOTEM Experiment at LHC

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    The TOTEM experiment at the CERN LHC is here presented. After an overview of the experimental apparatus, the measurement of the total pp cross section, elastic scattering and diffractive phenomena is described. This physics programme will allow to distinguish among different models of soft proton interactionsComment: Presented at 22nd Les Rencontres de Physique de la Vallee d'Aoste, Aosta Valley, Italy, 24 Feb - 1 Mar 200

    Saint Fiacre\u27s Brain Farm

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    Bridging Community, Research, and Action: An Emerging Center on Latino Youth Development (FOCUS)

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    This NCCD FOCUS is an update on the community conversations held across California with Latino community stakeholders on the status of Latino youth and the creation of a Center on Latino Youth Development

    The TOTEM Experiment at the LHC

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    The TOTEM experiment at the LHC is dedicated to the measurement of the total pp cross section and to the study of elastic scattering and of diffractive dissociation processes. TOTEM is here presented with a general overview on the main features of its experimental apparatus and of its physics programme.Comment: Proceedings of XLIIIth Rencontres de Moriond - QCD session, La Thuile (Italy), March 14th - 21st, 200

    Measurement of the Bottom-Strange Meson Mixing Phase in the Full CDF Data Set

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    We report a measurement of the bottom-strange meson mixing phase \beta_s using the time evolution of B0_s -> J/\psi (->\mu+\mu-) \phi (-> K+ K-) decays in which the quark-flavor content of the bottom-strange meson is identified at production. This measurement uses the full data set of proton-antiproton collisions at sqrt(s)= 1.96 TeV collected by the Collider Detector experiment at the Fermilab Tevatron, corresponding to 9.6 fb-1 of integrated luminosity. We report confidence regions in the two-dimensional space of \beta_s and the B0_s decay-width difference \Delta\Gamma_s, and measure \beta_s in [-\pi/2, -1.51] U [-0.06, 0.30] U [1.26, \pi/2] at the 68% confidence level, in agreement with the standard model expectation. Assuming the standard model value of \beta_s, we also determine \Delta\Gamma_s = 0.068 +- 0.026 (stat) +- 0.009 (syst) ps-1 and the mean B0_s lifetime, \tau_s = 1.528 +- 0.019 (stat) +- 0.009 (syst) ps, which are consistent and competitive with determinations by other experiments.Comment: 8 pages, 2 figures, Phys. Rev. Lett 109, 171802 (2012

    The Latino Vote in the 2010 Elections

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    Compares the Latino/Hispanic vote in the 2010 midterm elections with 2006 and with African-American and white voters, with a focus on Latino/Hispanic candidates and states with large Latino/Hispanic communities

    Cultivating Contextual Attributes in the Integration of Latin@ Educational Leadership

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    Although the Latino population is growing rapidly in the United States, there is a disproportionate paucity of literature on the perspectives and challenges of Latino/a educational leaders. Culturally aware educational leadership can help to improve retention and student engagement of Latino students. The purpose of this article is to explore the factors influencing the educational experience and perspective of Latino/a students and leaders to expand the understanding of Latinos within the education system. Identifying role models, creating network and professional development opportunities, as well as offering training programs are practices to enhance the training and expertise of Latino educational leaders. Implications and recommendations for practice and research are discussed
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