SuperKEKB (IMAGE) Johannes Gutenberg Universitaet Mainz Caption Plan of the SuperKEKB accelerator with the Belle-II detector. Credit Ill./©: KEK Usage Restrictions This image is only to be used in connection with the press release "First particles circulate in SuperKEKB accelerator," issued by Johannes Gutenberg University Mainz on April 14, 2016. 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.