150,686 research outputs found

    MEASUREMENT OF THE B0 ---> D*- D(S)*+ AND D(S)+ ---> PHI PI+ BRANCHING FRACTIONS.

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    We present measurements of the branching fractions B(B0→D*-Ds*+) and B(Ds+→φπ+), based on 123×106 Υ(4S)→BB̅ decays collected by the BABAR detector at the PEP-II asymmetric-energy e+e- B factory. A partial reconstruction technique is used to measure B(B0→D*-Ds*+) and the decay chain is fully reconstructed to measure the branching fraction product B(B0→D*-Ds*+)×B(Ds+→φπ+). Comparing these two measurements provides a model-independent determination of the Ds+→φπ+ branching fraction. We obtain B(B0→D*-Ds*+)=(1.88±0.09±0.17)% and B(Ds+→φπ+)=(4.81±0.52±0.38)%, where the first uncertainties are statistical and the second systematic

    Lectio Magistralis ACHILLE BONITO OLIVA / MAURIZIO MOCHETTI. Tra Arti e design

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    Achille Bonito Oliva, critico e professore di Storia dell ́Arte Contemporanea della Sapienza e l ́artista Maurizio Mochetti hanno inaugurato con la Lectio Magistralis "Tra Arti e design", l ́anno accademico 2009-2010 dei Corsi di Laurea in Disegno Industriale. Il tema della conferenza sono le complesse relazioni tra arti visive, architettura e design che si instaurano quando l ́impulso creativo e il progetto della modularità interagiscono con l ́ambiente costruito. L ́immaginario concettuale e la ricerca scientifica e tecnologica di Maurizio Mochetti sulla luce come oggetto i cui segni cromatici interpretano lo spazio con percorsi inusitati, sono in questo senso esemplari. Il dialogo tra ABO e l ́artista è stato introdotto dal professore Massimo d ́Alessandro

    Timbro del Gran Magistero dell\u27Ordine dei Santi Maurizio e Lazzaro

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    Dettaglio del timbro presente sul diploma assegnato a Roberto De Visiani dal Gran Magistero dell\u27Ordine dei Santi Maurizio e Lazzaro e dal Generale Gran Mastro Vittorio Emanuele II Re d\u27Italia

    Search for B+→D+K0 and B+→D+K*0 decays

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    We report a search for the rare decays B+→D+K0 and B+→D+K*0 in an event sample of approximately 465×106 BB̅ pairs collected with the BABAR detector at the PEP-II asymmetric-energy e+e- collider at SLAC National Accelerator Laboratory. We find no significant evidence for either mode and we set 90% probability upper limits on the branching fractions of B(B+→D+K0)<2.9×10-6 and B(B+→D+K*0)<3.0×10-6

    Observation of new resonances decaying to D and D in inclusive e+e− collisions near s= 10.58 GeV.

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    We present a study of the D+π-, D0π+, and D*+π- systems in inclusive e+e-→cc̅ interactions in a search for new excited D meson states. We use a data set, consisting of ∼454 fb-1, collected at center-of-mass energies near 10.58 GeV by the BABAR detector at the SLAC PEP-II asymmetric-energy collider. We observe, for the first time, candidates for the radial excitations of the D0, D*0, and D*+, as well as the L=2 excited states of the D0 and D+, where L is the orbital angular momentum of the quarks

    Branching Fraction Measurements of the Color-Suppressed Decays Bˉ0→D(∗)0π0, D(∗)0η, D(∗)0ω, and D(∗)0η′ and Measurement of the Polarization in the Decay Bˉ0→D∗0ω.

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    We report updated branching fraction measurements of the color-suppressed decays B̅ 0→D0π0, D*0π0, D0η, D*0η, D0ω, D*0ω, D0η′, and D*0η′. We measure the branching fractions (×10-4): B(B̅ 0→D0π0)=2.69±0.09±0.13, B(B̅ 0→D*0π0)=3.05±0.14±0.28, B(B̅ 0→D0η)=2.53±0.09±0.11, B(B̅ 0→D*0η)=2.69±0.14±0.23, B(B̅ 0→D0ω)=2.57±0.11±0.14, B(B̅ 0→D*0ω)=4.55±0.24±0.39, B(B̅ 0→D0η′)=1.48±0.13±0.07, and B(B̅ 0→D*0η′)=1.49±0.22±0.15. We also present the first measurement of the longitudinal polarization fraction of the decay channel D*0ω, fL=(66.5±4.7±1.5)%. In the above, the first uncertainty is statistical and the second is systematic. The results are based on a sample of (454±5)×106 BB̅ pairs collected at the Υ(4S) resonance, with the BABAR detector at the PEP-II storage rings at SLAC. The measurements are the most precise determinations of these quantities from a single experiment. They are compared to theoretical predictions obtained by factorization, Soft Collinear Effective Theory (SCET) and perturbative QCD (pQCD). We find that the presence of final state interactions is favored and the measurements are in better agreement with SCET than with pQCD

    Introduction

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    Introduzione al numero monografico dello "European Journal of English Studies" intitolato "Crime Narratives: Crossing Cultures", curato da Heather Worthington e Maurizio Ascari. Segue l'indice del numero: Introduction Heather Worthington; Maurizio Ascari Pages 89 – 93 From Egan To Reynolds: The shaping of urban ‘Mysteries’ in England and France, 1821–48 Louis James Pages 95 – 106 ‘Dreadful Beyond Description’: Mary Carpenter's prison reform writings and female convicts in Britain and India Anne Schwan Pages 107 – 120 Crime Narratives In Peter Ackroyd's Historiographic Metafictions Petr Chalupský Pages 121 – 131 Family Discord: Challenging the choreography of crime fiction in P. D. James's An Unsuitable Job for a Woman Kate Watson Pages 133 – 141 Food and Crime: What's eating the crime novel? Angelica Michelis Pages 143 – 157 In Search Of The Final Solution: Crime narrative as a paradigm for exploring responses to the Holocaust Anna Richardson Pages 159 – 171 Gomorrah: Crime goes global, language stays local Flavia Cavaliere Pages 173 – 18

    Search for B+ ---> D+K0 and B+ ---> D+K*0 decays.

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    We report a search for the rare decays B+→D+K0 and B+→D+K*0 in an event sample of approximately 465×106 BB̅ pairs collected with the BABAR detector at the PEP-II asymmetric-energy e+e- collider at SLAC National Accelerator Laboratory. We find no significant evidence for either mode and we set 90% probability upper limits on the branching fractions of B(B+→D+K0)<2.9×10-6 and B(B+→D+K*0)<3.0×10-6

    La conciliazione ex art. 6 d. lgs. 23/2015 tra autonomia privata e incentivi statali

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    This essay analyses the “conciliation proposal” introduced by art. 6 d. lgs. 23/2015 describing its procedural aspects and legal effects from the point of view of the freedom of will to be accorded to fired worker and employer. Arguing the revocable nature of the employers’ proposal, the author underlines that the prescription to subscribe the transaction before a selected office is aimed at promoting an agreement covering all aspects of the ceased employment relationship

    The Causality Between R&D And Investment

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    The aim of this paper is to investigate the relationship between R&D expenditure and investment in machinery and equipment in order to test for causality. New growth theory emphasises the role of R&D in creating blueprints needed to produce new capital goods implicitly assuming causality running from R&D to investment. Other recent studies using firm level data have investigated the relationship between innovative activity and investment in fixed capital. In this paper we use aggregate data from the US economy on R&D expenditure in the industrial sector and aggregate investment in machinery and equipment. Standard Granger causality tests, together with the Hsiao version, are then performed, showing that causality runs from R&D to investment. In addition we perform a cointegration analysis allowing a test of possible long-run feedbacks. This dynamic representation shows that any feedback between investment and R&D is only significant in the long run.Investment, R&D, Granger Causality, Cointegration, JEL classification: O30; O40; C22,
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