22 research outputs found

    The Sudbury Neutrino Observatory

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    The Sudbury Neutrino Observatory is a second generation water Cherenkov detector designed to determine whether the currently observed solar neutrino deficit is a result of neutrino oscillations. The detector is unique in its use of D2O as a detection medium, permitting it to make a solar model-independent test of the neutrino oscillation hypothesis by comparison of the charged- and neutral-current interaction rates. In this paper the physical properties, construction, and preliminary operation of the Sudbury Neutrino Observatory are described. Data and predicted operating parameters are provided whenever possible.Comment: 58 pages, 12 figures, submitted to Nucl. Inst. Meth. Uses elsart and epsf style files. For additional information about SNO see http://www.sno.phy.queensu.ca . This version has some new reference

    Measurement of the νe and total 8B solar neutrino fluxes with the Sudbury Neutrino Observatory phase-III data set

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    This paper details the solar neutrino analysis of the 385.17-day phase-III data set acquired by the Sudbury Neutrino Observatory (SNO). An array of 3He proportional counters was installed in the heavy-water target to measure precisely the rate of neutrino-deuteron neutral-current interactions. This technique to determine the total active 8B solar neutrino flux was largely independent of the methods employed in previous phases. The total flux of active neutrinos was measured to be 5.54-0.31+0.33(stat.)-0.34+0.36(syst.)×106 cm-2 s-1, consistent with previous measurements and standard solar models. A global analysis of solar and reactor neutrino mixing parameters yielded the best-fit values of Δm2=7.59-0.21+0.19×10 -5eV2 and θ=34.4-1.2+1.3degrees

    The ASEAN free trade area and the construction of a Southeast Asian economic community in East Asia

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    In October 2003, ASEAN leaders decided to establish an ASEAN Economic Community (AEC) by 2020. An AEC is presented by advocates as a logical step following the completion of the ASEAN Free Trade Area (AFTA) by ASEAN6 in 2003. Adopting a critical political economy approach inspired by the work of Mitchell Bernard and Robert W. Cox, this article argues that the decision to launch AFTA and an AEC are motivated primarily by the desire to transform Southeast Asia into an investment site and a production base for the world market within East Asia, in competition with China. AFTA and a future AEC are decisions taken within the structural context of an East Asian region characterised, among others, by the organisation of Japanese production and the developmental state. © 2004, Taylor & Francis Group, LLC
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