| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
We have constructed a many-body theory of direct neutron capture reaction relevant for the r-process nucleosynthesis on the basis of the coordinate-space Hartree-Fock-Bogoliubov theory and the continuum quasiparticle random phase approximation. A notable feature is that the theory can describe impact of the neutron superfluidity (the pair correlation) and low-lying collective excitations on the capture cross sections. We have studied also pairing effects on neutron low-energy scattering state, which is an initial state of the capture reaction. It is found that the neutron pair correlation reduces the width of the quasiparticle resonance in certain conditions, and also that it brings about unusual resonance-like behaviors in the s-wave neutron.
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