Belle II experiment

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·       The High Energy Accelerator Research Organisation (KEK) in Tsukuba, Ibaraki Prefecture, Japan, completed the Belle-II experiment.

·       This experiment is designed to study violations of the Standard Model and dark matter.

·       A grand collaboration of 900 scientists from 26 countries, Belle-II has a significant Indian participation both on experimental and theoretical sides.

·       The fourth layer of the six-layer, highly sensitive particle detector, which is at the heart of Belle-II, has been built by Indian scientists.

·       Belle II is the successor to the Belle experiment.

·       The Belle II detector was "rolled in" (moved into the collision point of SuperKEKB) in April 2017. It started taking data in early 2018. 

·       Over its running period, Belle II is expected to collect around 50 times more data than its predecessor due mostly to a factor 40 increase in instantaneous luminosity provided by SuperKEKB over the original KEKB accelerator.

 

SuperKEKB

·       SuperKEKB is a particle collider located at KEK (High Energy Accelerator Research Organisation) in Tsukuba, Japan.

·       SuperKEKB collides electrons with positrons at the centre-of-momentum energy close to the mass of the Υ(4S) resonance making it a second-generation B-factory for the Belle II experiment.

·       On 15th June 2020, SuperKEKB achieved the world’s highest instantaneous luminosity for a colliding-beam accelerator, setting a record of 2.22×1034 cm−2s−1.

 

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