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Tsukuba, Japan

KEK

High Energy Accelerator Research Organization

Particle PhysicsB-meson PhysicsPhoton ScienceMuon Science

KEK's Belle II experiment at the SuperKEKB collider searches for new physics in B-meson decays with 40× the luminosity of its predecessor. KEK also operates Photon Factory synchrotron light sources and the J-PARC Muon Science Facility, and leads the global T2K long-baseline neutrino experiment.

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Key Experiments
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Notable Discoveries
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Current Research Programs
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Visiting & Collaboration
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