Description
Belle ll experiment at SuperKEKB, high luminosity electron-positron collider, searches for new physics by consucting a detailed measurements of B meson and tau particles. In order to trigger physics events with high efficiency under high background environment, we developed level-1 trigger system based on central drift camber and electromagnetic calorimeter. We describe an overview of our level-1 trigger system and its performance during 2019-2020 physics run.
Author
Taichiro Koga
(High energy accelerator organization)
