Electromagnetic calorimeter trigger at Belle

B. G. Cheon, Hee Jong Kim, S. H. Lee, E. Won, I. C. Park, T. W. Hur, C. S. Park, S. K. Kim, H. J. Kim, H. O. Kim, T. H. Chu, Yu V. Usov, V. M. Aulchenko, A. S. Kuzmin, A. E. Bondar, B. Shwartz, S. Eidelman, P. Krokovny, H. Hayashii, H. SagawaM. Fukushima

Research output: Contribution to journalConference articlepeer-review

21 Citations (Scopus)


The performance of CsI(Tℓ) electromagnetic calorimeter trigger system in the Belle experiment is described. Two kinds of trigger schemes have been taken into account, namely a total energy trigger and a cluster counting trigger which are complementary to each other. In addition, the system has provided the online/offline luminosity information using the Bhabha event trigger scheme. An upgrade of the trigger is discussed.

Original languageEnglish
Pages (from-to)548-554
Number of pages7
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1-3
Publication statusPublished - 2002 Nov 21
Externally publishedYes
EventINSTR02 - Novosibirisk, Russian Federation
Duration: 2002 Feb 282002 Mar 6

Bibliographical note

Funding Information:
We gratefully acknowledge the efforts of Belle ECL group for excellent performance of its trigger system. This research was supported in part by the Center for High Energy Physics sponsored by the KOSEF and the BK21 program of the Ministry of Education of Korea.


  • Belle
  • Bhabha
  • CsI(Tℓ)
  • Trigger

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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