| Budget Amount *help |
¥23,530,000 (Direct Cost: ¥18,100,000、Indirect Cost: ¥5,430,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2016: ¥9,620,000 (Direct Cost: ¥7,400,000、Indirect Cost: ¥2,220,000)
Fiscal Year 2015: ¥11,830,000 (Direct Cost: ¥9,100,000、Indirect Cost: ¥2,730,000)
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| Outline of Final Research Achievements |
We have performed a Sigma proton scattering experiment at the J-PARC hadron experimental facility and could establish the experimental method for a high statistics Sigma proton scattering experiment. Because the lifetime of Sigma hyperon is very short and it decays just after a few cm flight, the scattering experiment between Sigma hyperon and proton was quite difficult. In order to overcome the experimental difficulty, we proposed a new experimental method where a high intensity pi beam was used to produce a lot of Sigma hyperons. A recoiled proton detector which is dedicated to this experiment was developed. In our experiment, we could identify about 150 Sigma proton scattering events from the analysis of two-days beam time. We expect about a several thousand of scattering event can be identified during the whole experimental data which is about 100 times more statistics. We will soon derive a differential cross section.
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