Hai-Bo Yu (IMAGE) University of California - Riverside Caption Hai-Bo Yu is a theoretical physicist at UC Riverside with expertise in the particle properties of dark matter. Credit Samantha Tieu. 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.