Study of Nucleon-nucleus Optical Potential and Core-polarization of Nucleus.
核子-核光势和核的核偏振的研究。
基本信息
- 批准号:03640259
- 负责人:
- 金额:$ 1.54万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for General Scientific Research (C)
- 财政年份:1991
- 资助国家:日本
- 起止时间:1991 至 1993
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The scientific motivation of this study is to make clear the fundamental excitation mode of nuclei with core-polarization by investigating elastic- and inelastic- neutron-nucleus scattering as well as nucleon nucleus optical potentials. 35-MeV monochromatic neutrons ( DELTA EPSILON = 650keV) have been obtained from the ^7LI(p, n)^7Be reaction generated by 37-MeV proton beams from the AVFcyclotron at Tohoku University.We have succeeded to measure the angular distributions of inelastic neutrons from ^<32>S in addition to those from ^<12>C at E_n = 35MeV.We have carried out systematic analyzes for neutron and proton scattering cross sections in nucleon energies ranging between 16 and 35 MeV.By applying dispersion relation between imaginary and real parts in optical potential, we have obtained the real term due to core-polarization, then reduced the real term from Hartree-Fock mean field. A significant difference has been found between neutron-nucleus andThe real part of the optical potentials for neutron and protons thus obtained as functions of nucleon energies allow us to extend them to lower energy even to negative energy, where nucleons are bound. The presently obtained potential may be applied to predict the potential depth to bound a nucleon in a particular orbit. This comparison was quite satisfactory as well.
本研究的科学动机是通过研究弹性和非弹性中子-核散射以及核子-核光学势来弄清楚具有核极化的核的基本激发模式。35-从东北大学AVF回旋加速器的37 MeV质子束产生的^7Li(p,n)^7Be反应中获得了MeV单色中子(Δ EPSILON = 650 keV),我们成功地测量了E_n = 1.2MeV时来自^ S和来自^ C的非弹性中子的角分布<32><12>。本文利用色散关系,对核子能量在16 - 35 MeV范围内的中子和质子散射截面进行了系统的分析在光学势的虚部和真实的部之间,我们得到了由核偏振引起的真实的项,然后由Hartree-Fock平均场约化了真实的项。由此得到的中子和质子光学势的真实的部分作为核子能量的函数,使我们能把它们推广到较低的能量,甚至负能量,在那里核子是束缚的。目前得到的势可用于预测核子在特定轨道上的束缚势深度。这样的对比,也是令人满意的。
项目成果
期刊论文数量(10)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
K.Miura,et al.: "The ^9Be(d,n)^9B reaction at 25 MeV" Nuclear Physics. A539. 441-450 (1992)
K.Miura 等人:“25 MeV 下的 ^9Be(d,n)^9B 反应”核物理。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
M.Kabasawa et al.: " ^<14>C(p,n) ^<14>N reaction at Ep=35MeV" Physical Review C. 45(3). (1992)
M.Kabasawa等人:“Ep=35MeV时的^ 14 C(p,n) ^ 14 N反应”物理评论C.45(3)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
A.Terakawa et al.: "Proton single-particle states in ^<21,23>Na through the (d,n) reaction" Physical Review C. 48. 2775-2788 (1993)
A.Terakawa 等人:“通过 (d,n) 反应在 ^<21,23>Na 中实现质子单粒子状态”物理评论 C. 48. 2775-2788 (1993)
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
M.Kabasawa: "^<14>C(p,n)^<14>N reaction at E_p=35MeV" Physical Review C. 45. 1220-1228 (1992)
M.Kabasawa:“^<14>C(p,n)^<14>N 在 E_p=35MeV 时的反应”物理评论 C.45.1220-1228 (1992)
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
K.Miura et al.: "The ^9Be(d, n) reaction at 25 MeV" Nuclear Physics. A539. 441---450 (1992)
K.Miura 等人:“25 MeV 下的 ^9Be(d, n) 反应”核物理。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
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ORIHARA Hikonojo其他文献
ORIHARA Hikonojo的其他文献
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{{ truncateString('ORIHARA Hikonojo', 18)}}的其他基金
Study of Spin-isospin Excitation by the (p,n) Reaction in the Energy Rang in E_p=10^* 100MeV
E_p=10^* 100MeV能量范围内(p,n)反应自旋-同位旋激发的研究
- 批准号:
13640257 - 财政年份:2001
- 资助金额:
$ 1.54万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Fine Structure of Isobaric Analog State Studied by (p, np) Reaction
(p, np)反应研究同量异位类似态的精细结构
- 批准号:
07640371 - 财政年份:1995
- 资助金额:
$ 1.54万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Study of Spin-Isospin Excitation in Nuclei by the (n, p) Reaction with Monochromatic Neutrons
单色中子的(n,p)反应对原子核中自旋同位旋激发的研究
- 批准号:
01540228 - 财政年份:1989
- 资助金额:
$ 1.54万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
Study of New-Modes of Nuclear Excitation by Means of High-Resolution (p,n) Measurement
通过高分辨率 (p,n) 测量研究核激发新模式
- 批准号:
59540147 - 财政年份:1984
- 资助金额:
$ 1.54万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
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