News

SuperKEKB Phase 3 (Belle II Physics Run) Starts

Mar 25th, 2019

On March 11th, 2019, Phase 3 operation of the SuperKEKB proj…

Press Release

KOTO Experiment at J-PARC Hadron Experimental Facility Broke World’s Best Sensitivity on Rare Neutral Kaon Decay by an Order of Magnitude – first step forward elucidation of “matter-antimatter asymmetry” –

Mar 4th, 2019

An international collaboration reported the first major resu…

Press Release

A Report on the Ground at KEK: Electrons and Positrons Collide for the first time in the SuperKEKB Accelerator

Apr 26th, 2018

At 0:38am (GMT+09:00), April 26, 2018, several hours after K…

Press Release