Last Update 2023/08/29
I have been involved in a high-energy experiment “Belle”, and have proved the Kobayashi-Maskawa theory, which is one of the pillars of the Standard Model (SM). Most behaviors of the elementary particles are known to match well to the SM. On the other hand, our Universe comprises yet-unanswered mysteries by the SM, like grand unification, dark matter, and the like. Most physicists believe that the SM is a low-temperature approximation and the mysteries may be answered by a new physics beyond the SM applicable to a much higher-temperature Universe. To elucidate the structure of the new physics, we upgrade our accelerator luminosity by a factor of 40 than Belle because we expect new-physics signatures should be very faint. In Kavli IPMU, and starting off the Belle II experiment. We had contributed to the Belle II experiment by producing ladders of the silicon vertex detector, which determines particle decay positions in the O(10μm) accuracy. Through commissioning work of the detector, we will start the full operation of the Belle II experiment in 2019."
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