Budget Amount *help |
¥161,200,000 (Direct Cost: ¥124,000,000、Indirect Cost: ¥37,200,000)
Fiscal Year 2022: ¥39,520,000 (Direct Cost: ¥30,400,000、Indirect Cost: ¥9,120,000)
Fiscal Year 2021: ¥31,850,000 (Direct Cost: ¥24,500,000、Indirect Cost: ¥7,350,000)
Fiscal Year 2020: ¥31,330,000 (Direct Cost: ¥24,100,000、Indirect Cost: ¥7,230,000)
Fiscal Year 2019: ¥27,560,000 (Direct Cost: ¥21,200,000、Indirect Cost: ¥6,360,000)
Fiscal Year 2018: ¥30,940,000 (Direct Cost: ¥23,800,000、Indirect Cost: ¥7,140,000)
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Outline of Final Research Achievements |
Experimental studies on few-body nuclei with strangeness were performed at J-PARC. In the Σp scattering experiment, we obtained differential cross sections of Σ-p/Σ+p elastic scattering and Σ-p→Λn inelastic scattering with high accuracy. We also obtained, for the first time for hyperons, Σ+p phase shifts and showed the existence of strong repulsive force. We also measured a spectrum of anti-K mesonic nuclei with a carbon target, which yielded a potential depth of -80 MeV and also suggested the existence of an extremely deep anti-K mesonic bound state. Analysis of a nuclear emulsion experiment revealed deeply-bound Ξ hypernuclear events, and a Ξ-atomic X-ray search was also performed with emulsion. In addition, we also performed a Ξ-Fe atomic X-ray spectroscopy experiment and an H-dibaryon search experiment, and prepared for Ξ hypernuclear spectroscopy and few-body Λ hypernuclear γ-ray spectroscopy experiments.
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