246 research outputs found

    УСЛОВИЯ И ОРГАНИЗАЦИЯ ПЕРЕХОДА К БАЗОВЫМ ТЕХНОЛОГИЯМ НОВОГО ТЕХНОЛОГИЧЕСКОГО УКЛАДА

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    With due account for the coming new (VI-th) world technological structure, future creation of new types of industrial production is both possible and necessary. Economic environment conditions favorable for such development are designated. In reference to Russian technologicalenvironment particulars, self-developing economic-technological microenvironment of a new quality level should be created in zones where controlled «technological chains» function. Possibilities of creation of the VI-th technological structure level basic technologies are shown for industrial and household waste processing techniques as an example.В перспективе возможно, а с учетом формирующегося в мире нового (VI-го) технологического уклада необходимо создание новых промышленных производств. Обозначены условия экономической среды, благоприятствующие такому развитию. Применительно к российским особенностям технологической среды необходимым является создание саморазвивающейся экономико-технологической макросреды нового уровня качества в зонах функционирования управляемых «технологических цепочек». Показаны возможности создания базовых технологий VI-го технологического уклада на примере переработки промышленных и бытовых отходов

    УСЛОВИЯ И ОРГАНИЗАЦИЯ ПЕРЕХОДА К БАЗОВЫМ ТЕХНОЛОГИЯМ НОВОГО ТЕХНОЛОГИЧЕСКОГО УКЛАДА

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    With due account for the coming new (VI-th) world technological structure, future creation of new types of industrial production is both possible and necessary. Economic environment conditions favorable for such development are designated. In reference to Russian technological environment particulars, self-developing economic-technological microenvironment of a new quality level should be created in zones where controlled «technological chains» function. Possibilities of creation of the VI-th technological structure level basic technologies are shown for industrial and household waste processing techniques as an example.В перспективе возможно, а с учетом формирующегося в мире нового (VI-го) технологического уклада необходимо создание новых промышленных производств. Обозначены условия экономической среды, благоприятствующие такому развитию. Применительно к российским особенностям технологической среды необходимым является создание саморазвивающейся экономико-технологической макросреды нового уровня качества в зонах функционирования управляемых «технологических цепочек». Показаны возможности создания базовых технологий VI-го технологического уклада на примере переработки промышленных и бытовых отходов

    Evidence for the exclusive decay Bc+- to J/psi pi+- and measurement of the mass of the Bc meson

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    We report first evidence for a fully reconstructed decay mode of the B_c^{\pm} meson in the channel B_c^{\pm} \to J/psi \pi^{\pm}, with J/psi \to mu^+mu^-. The analysis is based on an integrated luminosity of 360 pb$^{-1} in p\bar{p} collisions at 1.96 TeV center of mass energy collected by the Collider Detector at Fermilab. We observe 14.6 \pm 4.6 signal events with a background of 7.1 \pm 0.9 events, and a fit to the J/psi pi^{\pm} mass spectrum yields a B_c^{\pm} mass of 6285.7 \pm 5.3(stat) \pm 1.2(syst) MeV/c^2. The probability of a peak of this magnitude occurring by random fluctuation in the search region is estimated as 0.012%.Comment: 7 pages, 3 figures. Version 3, accepted by PR

    Top quark mass measurement using the template method at CDF

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    We present a measurement of the top quark mass in the lepton+jets and dilepton channels of ttˉt\bar{t} decays using the template method. The data sample corresponds to an integrated luminosity of 5.6 fb1^{-1} of ppˉp\bar{p} collisions at Tevatron with s=1.96\sqrt{s}=1.96 TeV, collected with the CDF II detector. The measurement is performed by constructing templates of three kinematic variables in the lepton+jets and two kinematic variables in the dilepton channel. The variables are two reconstructed top quark masses from different jets-to-quarks combinations and the invariant mass of two jets from the WW decay in the lepton+jets channel, and a reconstructed top quark mass and mT2m_{T2}, a variable related to the transverse mass in events with two missing particles, in the dilepton channel. The simultaneous fit of the templates from signal and background events in the lepton+jets and dilepton channels to the data yields a measured top quark mass of Mtop=172.1±1.1(stat)±0.9(syst).M_{top} = 172.1 \pm 1.1(stat) \pm 0.9(syst).Comment: submitted to Phys. Rev.

    Measurement of WγW\gamma and ZγZ\gamma Production in ppˉp\bar{p} Collisions at s\sqrt{s} = 1.96 TeV

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    The Standard Model predictions for WγW\gamma and ZγZ\gamma production are tested using an integrated luminosity of 200 pb1^{-1} of \ppbar collision data collected at the Collider Detector at Fermilab. The cross sections are measured selecting leptonic decays of the WW and ZZ bosons, and photons with transverse energy ET>7E_T>7 GeV that are well separated from leptons. The production cross sections and kinematic distributions for the WγW\gamma and ZγZ\gamma are compared to SM predictions.Comment: 7 pages, 4 figures, submitted to PR

    Measurement of the Lifetime Difference Between B_s Mass Eigenstates

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    We present measurements of the lifetimes and polarization amplitudes for B_s --> J/psi phi and B_d --> J/psi K*0 decays. Lifetimes of the heavy (H) and light (L) mass eigenstates in the B_s system are separately measured for the first time by determining the relative contributions of amplitudes with definite CP as a function of the decay time. Using 203 +/- 15 B_s decays, we obtain tau_L = (1.05 +{0.16}/-{0.13} +/- 0.02) ps and tau_H = (2.07 +{0.58}/-{0.46} +/- 0.03) ps. Expressed in terms of the difference DeltaGamma_s and average Gamma_s, of the decay rates of the two eigenstates, the results are DeltaGamma_s/Gamma_s = (65 +{25}/-{33} +/- 1)%, and DeltaGamma_s = (0.47 +{0.19}/-{0.24} +/- 0.01) inverse ps.Comment: 8 pages, 3 figures, 2 tables; as published in Physical Review Letters on 16 March 2005; revisions are for length and typesetting only, no changes in results or conclusion

    Measurement of the Dipion Mass Spectrum in X(3872) -> J/Psi Pi+ Pi- Decays

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    We measure the dipion mass spectrum in X(3872)--> J/Psi Pi+ Pi- decays using 360 pb-1 of pbar-p collisions at 1.96 TeV collected with the CDF II detector. The spectrum is fit with predictions for odd C-parity (3S1, 1P1, and 3DJ) charmonia decaying to J/Psi Pi+ Pi-, as well as even C-parity states in which the pions are from Rho0 decay. The latter case also encompasses exotic interpretations, such as a D0-D*0Bar molecule. Only the 3S1 and J/Psi Rho hypotheses are compatible with our data. Since 3S1 is untenable on other grounds, decay via J/Psi Rho is favored, which implies C=+1 for the X(3872). Models for different J/Psi-Rho angular momenta L are considered. Flexibility in the models, especially the introduction of Rho-Omega interference, enable good descriptions of our data for both L=0 and 1.Comment: 7 pages, 4 figures -- Submitted to Phys. Rev. Let
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