Hiroaki Aihara is Professor of Physics and deputy director of the Kavli Institute for the Physics and Mathematics of the Universe at the University of Tokyo. Past research activities include experiments at PEP electron-positron collider at SLAC, the Tristan electron-positron collider at KEK, the Tevatron proton-antiproton collider at Fermilab, B factory at KEK, and the J-PARC accelerator. His major research achievements include significant contributions to the 1995 discovery of the top quark at the D0 experiment, the 2001 observation of CP violation in the B meson system at the Belle experiment, and the 2014 observation of electron neutrino appearance in a muon neutrino beam at the T2K experiment. He is currently involved in a dark energy survey with the Subaru Hyper Suprime-Cam and with the Belle II experiment at the Super KEKB accelerator.
