On March 25 19:44 (JST), 2019, electron-positron collisions have restarted at the SuperKEKB collider, and the Belle II experiment has now kicked off its physics data taking. Belle II is now fully instrumented with a state-of-the-art vertex detector, just in time for the start of the cherry blossom season in Japan.
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Past Press Release
KEKSuperKEKB Phase 3 (Belle II Physics Run) Starts
News Link
KEK IPNS【BelleⅡ】The Test of the BEAST Detector System Started
KEK IPNSKEK/IPNS Official Website【Special Article】BelleⅡExperiment (in Japanese)