Belle II Experiment

Bell Collaboration
The Belle II detector
Event display with reconstructed tracks


The Belle II experiment is an upgrade of the B factory experiment Belle at the KEK laboratory in Tsukuba, Japan. It started to record data in early 2018 and will accumulate a sample 50 times larger than the predecessor experiment Belle in the upcoming years. The physicists of the Belle II Collaboration at over 100 institues around the globe are going to analyse this data set to find answers to questions such as, why the universe today consists only of matter and no anti-matter. The expected large data sample also requires a new computing model to provide sufficient computing power and storage capacity for the processing and analysis of the data.


Contribution of the ETP

The ETP is engaged in the Belle II project since 2008 on the fields of software development, setup of the computing infrastructure, and the preparation and execution of particle physics analyses. In particular we work as a leading institute on the track reconstruction in the central drift chamber and the silicon tracking detectors, the software framework, the code management, as well as the development of multivariate data analysis methods. Further activities are the development of a database for calibration constants and the monitoring of grid sites.



Belle II Experiment

Belle II Germany

Prof. Torben Ferber