2010 Fiscal Year Final Research Report
Study of hidden nuclear interactions(Neutron rich nuclei and the tensor forces)
| Project/Area Number |
20244030
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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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 |
TANIHATA Isao 大阪大学, 核物理研究センター, 教授 (10089873)
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| Co-Investigator(Kenkyū-buntansha) |
KOBAYASHI Toshio 東北大学, 理学系・研究科, 教授 (30186754)
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| Co-Investigator(Renkei-kenkyūsha) |
OZAWA Akira 筑波大学, 数理物質科学研究科, 教授 (80260214)
MATSUTA Kensaku 大阪大学, 理学研究科, 准教授 (50181722)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 核構造 / 不安定核ビーム / テンソル力 / 中性子過剰物質 / 状態方程式 / 固体水素標的 |
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| Research Abstract |
At RCNP, we study^<16> O(p, d)^<15> O reaction at E_p=200~ 400 MeV. The cross section of transitions to the discrete excited states in^<15> O have been measured. The abnormal enhancement of the cross section has been observed in the transition to the positive parity states at high energy. This anomaly is understood quantitatively as an effect of high-momentum nucleon produced by the tensor force and thus suggests a direct evidence of the tensor force in a nucleus.
At GSI, measurements of proton elastic scattering have been made to study the density distribution of neutron rich Ni isotopes. We could have extended the measurement up to^<70> Ni. The data are under analysis. We will obtain density distribution of medium mass neutron-rich nuclei for the first time.
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