The Belle-II experiment at the SuperKEKB aims to achieve a target instantaneous luminosity of 8×1035cm-2s-1. To cope with the design luminosity, the sub-detectors and the level-1 trigger system are required to be upgraded. The central drift chamber in the Belle-II detector which plays a primary role in the track reconstruction of charged particles is a multi-wire drift chamber with 14,336 channels. The central drift chamber-based trigger is responsible for distinguishing specific types of physics, which is based on fast track reconstruction. The fabrication of a small prototype of the central drift chamber and the development process of the central drift chamber-based trigger system are described.
Bibliographical noteFunding Information:
This work is supported in part by the National Research Foundation of Korea under NRF-2019H1D3A1A01101787, NRF-2019K1A3A7A09034960, the Korea University Grant No. K2107211, and the BK21 FOUR program at Korea University, Initiative for science frontiers on upcoming challenges.
© 2021, The Korean Physical Society.
- Belle-II experiment
- Central drift chamber
- Level-1 trigger
ASJC Scopus subject areas
- General Physics and Astronomy