TOP detector for particle identification at Belle II
Ezio Torassa
TL;DR
The paper discusses the design, implementation, and performance of the TOP detector at Belle II, including upgrades and future plans, to improve particle identification in high-energy physics experiments.
Contribution
It provides a comprehensive overview of the TOP detector's components, performance during Run1, and details of upgrades implemented during LS1 and future plans.
Findings
Successful operation of the TOP detector during Run1
Details of detector upgrades during LS1
Future upgrade plans for enhanced performance
Abstract
The Time-Of-Propagation (TOP) counter is a ring-imaging Cherenkov detector designed to identify the charged hadrons in the barrel region of the Belle II detector. The Belle II experiment collected data delivered by the SuperKEKB accelerator from March 2019 to June 2022. After the first run period (Run1) a long shutdown (LS1) was dedicated to implement several accelerator and detector upgrades. The second collision period (Run2), started in January 2024. The components of the TOP detector and the performance during the Run1 will be reported, the detector upgrade during LS1 and future upgrades will be described.
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Taxonomy
TopicsRadiation Detection and Scintillator Technologies · Nuclear Physics and Applications · Particle Detector Development and Performance