Particle detector integrated with powerful accelerator

The High Energy Accelerator Research Organisation (KEK) completed the much-awaited ‘rolling-in’ of the Belle-II experiment in Tsukuba, Japan.

About the experiment
The Belle II experiment is an international collaboration with 23 member nations hosted by KEK in Tsukuba, Japan.

Using a state-of-the-art experimental apparatus, Belle II explores the mysteries of the beginning of the the universe. The Belle II detector precisely measures elementary particle interactions artificially created with the upgraded Super KEKB accelerator.

What is roll-in?
The term “roll-in” refers to the operation of moving the entire Belle II detector system, following the completion of the assembly and integration of the various components, from its assembly area to the beam collision point. The total weight of the Belle II detector is about 1400 tons.

Belle II was slowly and carefully moved about 13 meters from the assembly point to the beam collision point. The Belle II detector and the Super KEKB accelerator are now an integrated unit.

In the Belle II experiment, we will observe various elementary particles generated from high energy electron-positron collisions using the 8-meter tall Belle II detector consisting of seven types of sub-detectors; we will investigate the various kinds of elementary particles that emerge from these collisions.

This experiment is designed to study violations of the Standard Model of particle physics.

Indian presence
A grand collaboration of 700 scientists from 23 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 who are with the Tata Institute of Fundamental Research (TIFR), Mumbai.

(Adapted from The Hindu)