Three-dimensional fast tracker for the central drift chamber based level-1 trigger system in the Belle II experiment

Eunil Won, J. B. Kim, B. R. Ko

Research output: Contribution to journalArticle


The Belle II detector at the SuperKEKB accelerator has a level-1 trigger implemented in field-programmable gate arrays. Due to the high luminosity of the beam, a trigger that effectively rejects beam-induced background is required. A three-dimensional tracking algorithm for the level-1 trigger that uses the Belle II central drift chamber detector response is being developed to reduce the recorded beam background while having a high efficiency for physics of interest. In this paper, we describe the three-dimensional track trigger that finds and fits track parameters that we developed.

Original languageEnglish
Pages (from-to)33-37
Number of pages5
JournalJournal of the Korean Physical Society
Issue number1
Publication statusPublished - 2018 Jan 1



  • Drift chamber
  • FPGA
  • Level-1 trigger
  • Three-dimensional tracking algorithm

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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