SuperKEKB Accelerator (IMAGE) Max Planck Institute for Physics Caption The SuperKEB ring, in which electrons and positrons are accelerated to collide in the Belle II experiment. Measuring the particle traces, physicists are looking for unusual decay patterns. Credit KEK Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.