ALL libraries (COBIB.SI union bibliographic/catalogue database)
  • The Belle detector
    Abashian, A. ...
    The Belle detector was designed and constructed to carry out quantitative studies of rare B-meson decay modes with very small branching fractions using an asymmetric e+e- collider operating at the ... (4S) resonance, the KEK-B-factory. Such studies require data samples containing ~107 B-meson decays. The Belle detector is configured around a 1.5 T superconducting solenoid and iron structure surrounding the KEK-B beams at theTsukuba interaction region. B-meson decay vertices are measured by a silicon vertex detector situated just outsideof a cylindrical beryllium beam pipe. Charged particle tracking is performed by a wire drift chamber (CDC). Particleidentification is provided by dE/dx measurements in CDC, aerogel threshold Cherenkov counter and time-of-flight counter placed radially outside of CDC. Electromagnetic showers are detected in an array of CsI(Tl) crystals located inside the solenoid coil. Muons and KL mesons are identified by arrays of resistive plate counters interspersed in the iron yoke. The detector covers the region extending from 17Ś to 150Ś. The part of the uncovered small-angle region is instrumented with a pair of BGO crystal arrays placed on the surfaces of the QCS cryostats in the forward and backwarddirections. Details of the design and development works of the detector subsystems, which include trigger, data acquisition and computer systems, are described. Results of performance of the detector subsystems are also presented.
    Source: Nuclear instruments and methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment. - ISSN 0168-9002 (Vol. 479, 2002, str. 117-232)
    Type of material - article, component part
    Publish date - 2002
    Language - english
    COBISS.SI-ID - 16771623

Shelf entry