The Belle detector

The Belle Collaboration

Research output: Contribution to journalArticle

1348 Citations (Scopus)

Abstract

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 γ(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 the Tsukuba interaction region. B-meson decay vertices are measured by a silicon vertex detector situated just outside of a cylindrical beryllium beam pipe. Charged particle tracking is performed by a wire drift chamber (CDC). Particle identification 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 θ region extending from 17° to 150°. 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 backward directions. 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.

Original languageEnglish
Pages (from-to)117-232
Number of pages116
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume479
Issue number1
DOIs
Publication statusPublished - 2002 Feb 21
Externally publishedYes

Fingerprint

Detectors
detectors
mesons
Solenoids
counters
solenoids
Cerenkov counters
Drift chambers
Iron
apexes
decay
Silicon detectors
Crystals
Cryostats
Aerogels
Beryllium
Colliding beam accelerators
iron
Charged particles
aerogels

ASJC Scopus subject areas

  • Instrumentation
  • Nuclear and High Energy Physics

Cite this

The Belle detector. / The Belle Collaboration.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 479, No. 1, 21.02.2002, p. 117-232.

Research output: Contribution to journalArticle

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