Belle II Takes First Steps Towards Uncovering New Physics with Successful Collision Detection

Belle II resumes operations at CERN

In August 2022, the Belle II detector at SuperKEKB in Japan underwent a scheduled long shutdown. During this time, several upgrades were made to the facility in preparation for the expected increases in luminosity and backgrounds resulting from the beams. The new vertex detector was installed with a fully implemented pixel detector, while an improved beam pipe was put in place at the collision point. Additionally, enhancements were made to the radiation shielding and other measures were put in place to improve data-collection performance.

On February 20th, 2023, the Belle II experiment recorded its first e+e- collisions after the long shutdown. The successful start of Run 2 marks an important milestone in the ongoing research efforts at the facility. With the upgraded detector and improved performance measures in place, researchers are now poised to collect high-quality data that could lead to exciting discoveries in the field of particle physics.

The Belle II experiment aims to uncover new phenomena through precise analysis of the properties of B mesons and other particles produced by the SuperKEKB accelerator. The long-term goal of Belle II is to accumulate a dataset that is 50 times larger than that of the former Belle experiment. This ambitious goal will allow researchers to delve deeper into the mysteries of particle physics and potentially discover new physics beyond the Standard Model.

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