| Project/Area Number |
18540272
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Osaka University |
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Principal Investigator |
FUKUDA Mitsunori Osaka University, Department of Physics, Associate Professor (50218939)
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| Co-Investigator(Kenkyū-buntansha) |
MATSUTA Kensaku Osaka University, Department of Physics, Associate Professor (50181722)
MIHARA Mototsugu Osaka University, Department of Physics, Associate Professor (60294154)
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| Project Period (FY) |
2006 – 2007
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| Project Status |
Completed (Fiscal Year 2007)
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| Budget Amount *help |
¥3,860,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥360,000)
Fiscal Year 2007: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2006: ¥2,300,000 (Direct Cost: ¥2,300,000)
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| Keywords | Nucleon Density Distribution / Neutron Skin / Neutron Halo / Proton Halo / 原子核構造 |
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| Research Abstract |
From a systematic and precise measurement of reaction cross sections (σ_R), it has been revealed that σ_R at intermediate energies can be reproduced very well by an optical-limit Glauber calculation modified to include the multiple scattering and the Fermi-motion efficts. Based on this successful method to calculate σ_R, we tried to study the nuclear surface structure utilizing the high sensitivity of σ_R at these energies to dilute densities and also the asymmetry of nucleon scatterings. First, using 3H and 3He beams, precise σ_R data on heavy targets have been obtained to investigate the neutron skin Next, using polyethylene proton targets, the constituent (proton or neutron) of halo has been studied. As a result, comparing the present experimental data with the modified optical-limit calculations, the constituents of the halos in ^8B and ^<11>Be have been clearly shown., which shed a light on a way to understand the nuclear surface structure in detail.
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