| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Outline of Final Research Achievements |
Evidence of the enhanced nuclear radius in the Hoyle rotational state (2+2)is derived from the α + 12C inelastic scattering. The prominent shrinkage is observed in the differential cross section of 2+2 in comparison to the yrast 2+1 state, and this shrinkage is the first evidence of the enhanced nuclear radius which originates from the 3α structure in the 2+2 state. The present analysis predicts an enhancement of 0.6 to 1.0 fm in the nuclear radius of the 2+2 state in comparison to the radius of the yrast rotational state, which is considered to have a normal nuclear radius. In addition, Theoretical calculation predicts the prominent shrinkage in the π－ angular distribution for the 3α+Λ production in comparison to the distribution in the 12C+Λ production.This shrinkage is a clear evidence of the enhanced nuclear radius of the 3α+Λ structure.
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