Visitors to a world-leading accelerator science research laboratory should not be surprised if they see a rock singer engaging in studies on neutrinos.

"I'm even mistaken for a young scaffolding worker," laughed Sho Tada, 43, of the High Energy Accelerator Research Organization in Tsukuba, Ibaraki Prefecture.

People who meet Tada for the first time never recognize him as an assistant professor of physics and a neutrino oscillation researcher at the organization, called KEK for the abbreviation of its Japanese name, because he usually wears a military camouflage outfit and has long, bleached blond hair.