Press Release and Topics on Researches at J-PARC Hadron Experimental Facility

April 13, 2026

Press release on researches at Hadron Experimental Facility from J-PARC/KEK (only English articles)

l Researchers at Osaka University participate in a particle accelerator experiment that creates an exotic, highly unstable particle and measures its mass, which may help explain the interior of ultra-dense neutron stars （2023/1/26）

l Internal structure of the Xi nucleus finally observed - New insights into the formation of nuclei and the structure of neutron stars - (2021/7/23)

l The first determination of the Xi hypernuclear mass- New insights toward understanding of the origin of nuclei and structure of neutron stars – (2021/3/2)

l KOTO Experiment at J-PARC Hadron Experimental Facility Broke World's Best Sensitivity on Rare Neutral Kaon Decay by an Order of Magnitude (2019/3/4)

Research topics

l Detector Solenoid Magnet for the COMET Experiment Installed— Probing One-in-a-Hundred-Trillion Phenomena (KEK-IPNS Topics) (2026/1/7)

l Towards a Better Understanding of the Short-range Repulsive Nuclear Force (JPS Hot Topics, with movie) （2022/11/21）

l New Findings Hint Towards Existence of Kaonic Nuclei and Hyper-nuclei (JPS Hot Topics, with movie) （2021/3/3）

See also Publications in Journals.