Speaker
Description
The Belle II experiment is an experiment at the SuperKEKB, an electron-positron collider, and the Belle II detector operated at the near the energies of Upsilon 4S resonance. The run 1 operation was successfully finished in June 2022, and the first long shutdown was started. During the shutdown period, the online storage and express-reconstruction system has been upgraded. The goals of upgrades are introducing the ZeroMQ library-based framework to the systems like the high-level trigger, direct ROOT format output with online compression, and dedicated express-reconstruction system for physics events tagged by the high-level trigger. In this presentation, we present the commissioning results of the system upgrades and experience of early operation of run 2.
| Minioral | Yes |
|---|---|
| IEEE Member | No |
| Are you a student? | No |
