Level-1 track trigger with Central Drift Chamber detector in Belle II experiment

Y.-T Lai ,C Kiesling,T.-Z Sheng,T Koga,E Won,S Skambraks,Y Iwasaki,K Unger ,P.-C Lu ,S.-M Liu ,M.-C Chang ,K.-T Kim ,C.-H Wang ,T J Moon ,J.-B Kim ,F Meggendorfer ,H Nakazawa ,H K Moon ,J G Shiu ,Steffen Bähr

doi:10.1109/nssmic.2018.8824506

Level-1 track trigger with Central Drift Chamber detector in Belle II experiment

Y.-T Lai , C Kiesling + Show 18 more

https://doi.org/10.1109/nssmic.2018.8824506

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Publication Date: Nov 1, 2018

Citations: 4

Affiliation: High Energy Accelerator Research Organization, Max Planck Institute for Physics, National Taiwan University, Korea University, Karlsruhe Institute of Technology, National United University, Fu Jen Catholic University, Seoul National University, Technical University of Munich

#Central Drift Chamber #Level-1 Track Trigger + Show 8 more

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Abstract

In the Belle II experiment, the target of Level-1 trigger system (TRG) is to select various types of physics events with high efficiency and limited processing time by using FPGA (Field Programmable Gate Array) chips to summarize online information. The system utilizes the data from the Central Drift Chamber (CDC) detector to validate real-time charged particle fast tracking algorithms, which is critical for some of the trigger decision conditions in Belle II. In the paper, we will focus on the sub-systems associated with CDC detector and introduce the hardware design, tracking algorithms, and the performance in the cosmic ray test and SuperKEKB phase-2 collision in 2018.

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