776 research outputs found

    Cross-sections of large-angle hadron production in proton-- and pion--nucleus interactions VIII: aluminium nuclei and beam momenta from {\pm}3 GeV/c to {\pm}15 GeV/c

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    We report on double-differential inclusive cross-sections of the production of secondary protons, charged pions, and deuterons, in the interactions with a 5% {\lambda}int thick stationary aluminium target, of proton and pion beams with momentum from \pm3 GeV/c to \pm15 GeV/c. Results are given for secondary particles with production angles between 20 and 125 degrees. Cross-sections on aluminium nuclei are compared with cross-sections on beryllium, carbon, copper, tin, tantalum and lead nuclei.Comment: 71 pages, 16 figures, 47 table

    Cross-Sections of Large-Angle Hadron Production in Proton- and Pion-Nucleus Interactions V: Lead Nuclei and Beam Momenta from +/-3 Gev/c to +/-15 Gev/c

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    We report on double-differential inclusive cross-sections of the production of secondary protons, charged pions, and deuterons, in the interactions with a 5% nuclear interaction length thick stationary lead target, of proton and pion beams with momentum from +/-3 GeV/c to +/-15 GeV/c. Results are given for secondary particles with production angles 20 to 125 degrees. Cross-sections on lead nuclei are compared with cross-sections on beryllium, copper, and tantalum nuclei.Comment: 67 pages, 13 figures, 47 table

    Cross-sections of large-angle hadron production in proton- and pion-nucleus interactions VI: carbon nuclei and beam momenta from \pm 3 GeV/c to \pm 15 GeV/c

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    We report on double-differential inclusive cross-sections of the production of secondary protons, charged pions, and deuterons, in the interactions with a 5% nuclear interaction length thick stationary carbon target, of proton and pion beams with momentum from \pm 3 GeV/c to \pm 15 GeV/c. Results are given for secondary particles with production angles between 20 and 125 degrees. Cross-sections on carbon nuclei are compared with cross-sections on beryllium, copper, tantalum and lead nuclei.Comment: 67 pages, 13 figure

    The American aid to the Russian reforms at the end of the twentieth century

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    The importance of the studied problem is caused by the USA’s leading role in the development of modern world order and the economy, its influence in the international economic organizations. The article is aimed at revealing the reasons of choosing neoliberal strategy for Russian reforms, the amount and results of the American financial and technical aid to these reforms. The leading approach of researching this problem is the complex one. It allows finding out economic, internal political, geopolitical and cultural factors which influenced the implementation and the results of the American assistance to the Russian reforms. Authors draw a conclusion about considerable influence of the USA on domestic policy of Russia in the early nineties of the XX century. The amount and the content of the American financial and technical assistance to the Russian government are analyzed. Promises of massive financial aid from the international economic organizations and the USA were realized partially and much later, than it was necessary for economic transformations. The article’s content and conclusions can be used in other scientific works on American-Russian relations history, Modern history of Russia, during elaboration the effective strategy of reforms for the countries which are in a condition of a transitional economy. © 2016 Tarasova et al

    INFLUENCE OF BUSINESS DIGITALIZATION ON THE OIL RECOVERY FACTOR AND IMPROVING THE EFFICIENCY OF THE OIL AND GAS COMPANIES ACTIVITY

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    Against the background of the decline structure of hydrocarbon reserves in Russia, the maintenance of a stable level of production and enhanced oil recovery at mature fields is associated with the introduction of technologies of the fourth industrial revolution (Industry 4.0). The real and possible impact of digitalization on the oil recovery factor and impact of the technological solutions on the development hard-to-recover reserves have been сonsidered in the article. Special attention has been paid to the transition to intellectual methods of management, within the framework of digitalization, which ensure the effective management for all company’s processes, provide objective and transparent information for making accurate and operational management decisions. To ensure a significant effect from the digital transformation of the industry, it is necessary to create favorable investment conditions, including government regulation and stimulation

    Revisiting the 'LSND anomaly' II: critique of the data analysis

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    This paper, together with a preceding paper, questions the so-called 'LSND anomaly': a 3.8 sigma excess of antielectronneutrino interactions over standard backgrounds, observed by the LSND Collaboration in a beam dump experiment with 800 MeV protons. That excess has been interpreted as evidence for the antimuonneutrino to antielectronneutrino oscillation in the \Deltam2 range from 0.2 eV2 to 2 eV2. Such a \Deltam2 range is incompatible with the widely accepted model of oscillations between three light neutrino species and would require the existence of at least one light 'sterile' neutrino. In a preceding paper, it was concluded that the estimates of standard backgrounds must be significantly increased. In this paper, the LSND Collaboration's estimate of the number of antielectronneutrino interactions followed by neutron capture, and of its error, is questioned. The overall conclusion is that the significance of the 'LSND anomaly' is not larger than 2.3 sigma.Comment: 30 pages, 16 figures, 6 table

    Reply to 'Corrections to the HARP-CDP Analysis of the LSND Neutrino Oscillation Backgrounds'

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    The alleged mistakes in recent papers that reanalyze the backgrounds to the 'LSND anomaly' do not exist. We maintain our conclusion that the significance of the 'LSND anomaly' is not 3.8 sigma but not larger than 2.3 sigma.Comment: 3 page

    Why the paper CERN-PH-EP-2009-015 (arXiv:0903.4762) is scientifically unacceptable

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    The paper CERN-PH-EP-2009-015 (arXiv:0903.4762) by A. Bagulya et al. violates standards of quality of work and scientific ethics on several counts. The paper contains assertions that contradict established detector physics. The paper falls short of proving the correctness of the authors' concepts and results. The paper ignores or quotes misleadingly pertinent published work. The paper ignores the fact that the authors' concepts and results have already been shown wrong in the published literature. The authors seem unaware that cross-section results from the 'HARP Collaboration' that are based on the paper's concepts and algorithms are in gross disagreement with the results of a second analysis of the same data, and with the results of other experiments.Comment: 8 pages, 3 figure

    Cross-Sections of Large-Angle Hadron Production in Proton- and Pion-Nucleus Interactions III: Tantalum Nuclei and Beam Momenta from +/-3 Gev/c to +/-15 Gev/c

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    We report on double-differential inclusive cross-sections of the production of secondary protons, charged pions, and deuterons, in the interactions with a 5% nuclear interaction length thick stationary tantalum target, of proton and pion beams with momentum from +/-3 GeV/c to +/-15 GeV/c. Results are given for secondary particles with production angles between 20 and 125 degrees. They are of particular relevance for the optimization of the design parameters of the proton driver of a neutrino factory.Comment: 68 pages, 12 figures, corrections in v2: added 'HARP -CDP group' to author name, corrected two typos in Table 4 (last two p values for 65-90 degrees were all 0.972
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