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The Belle II vertex detector integration

  • (Belle II DEPFET, PXD, and SVD Collaborations)
  • Charles University
  • Max Planck Institute for Physics (Werner Heisenberg Institute)
  • University of Bonn
  • The University of Tokyo
  • University of Barcelona
  • Semiconductor Laboratory of the Max Planck Society
  • University of Tabuk
  • Tata Institute of Fundamental Research
  • German Electron Synchrotron
  • H. Niewodniczanski Institute of Nuclear Physics
  • Indian Institute of Technology Bhubaneswar
  • Technical University of Munich
  • University of Melbourne
  • Indian Institute of Technology Madras
  • University of Pisa
  • National Institute for Nuclear Physics
  • Austrian Academy of Sciences
  • Indian Institute of Technology Guwahati
  • Karlsruhe Institute of Technology
  • IFIC(CSIC-Universitat de Valencia)
  • University of Trieste
  • Tohoku University
  • Heidelberg University 

Research output: Contribution to journal › Review article › peer-review

Abstract

The Belle II experiment comes with a substantial upgrade of the Belle detector and will operate at the SuperKEKB energy-asymmetric e+e− collider with energies tuned to ϒ(4S) resonance s=10.588 GeV. The accelerator has successfully completed the first phase of commissioning in 2016 and the first electron–positron collisions in Belle II took place in April 2018. Belle II features a newly designed silicon vertex detector based on DEPFET pixel and double-sided strip layers. Currently, a subset of the vertex detector is installed (Phase 2 of the experiment). Installation of the full detector (Phase 3) will be completed by the end of 2018. This paper describes the Phase 2 arrangement of the Belle II silicon vertex detector, with focus on the interconnection of detectors and their integration with the software framework of Belle II. Alignment issues are discussed based on detector simulations and first acquired data.

Keywords

  • Belle II
  • Data acquisition
  • Pixel detector
  • Silicon sensor
  • Strip detector
  • Vertex detector

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