Overview of the electromagnetic calorimeter trigger system at the belle II experiment

Y. J. Kim, S. H. Kim, I. S. Lee, C. H. Kim, Y. Unno, B. G. Cheon, J. K. Ahn

Research output: Contribution to journalConference article

Abstract

We have been developing the trigger system using the Electromagnetic Calorimeter(ECL) which is one of sub-detectors in the Belle II experiment. The ECL trigger system is based on Trigger Cell(TC), and each TC consists of 16 crystals. To make a decision of physics events at an online trigger level, energy deposit in the TC and the event timing are required. Therefore, we have performed the TC energy calibration by a method of comparing the ECL trigger data with the ECL data, and the TC time offset calibration by using a least χ2 algorithm. We report the calibration method and performance using cosmic ray data.

Original languageEnglish
Article number804
JournalProceedings of Science
Volume340
Publication statusPublished - 2019
Event39th International Conference on High Energy Physics, ICHEP 2018 - Seoul, Korea, Republic of
Duration: 2018 Jul 42018 Jul 11

ASJC Scopus subject areas

  • General

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    Kim, Y. J., Kim, S. H., Lee, I. S., Kim, C. H., Unno, Y., Cheon, B. G., & Ahn, J. K. (2019). Overview of the electromagnetic calorimeter trigger system at the belle II experiment. Proceedings of Science, 340, [804].