Nuclear physics with strangeness

奇异的核物理

• 批准号: 04302014
• 负责人: IMAI Kenichi
• 金额: $ 5.7万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Co-operative Research (A)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-04302014/
• 关键词: strangeness; hypernuclei; hyperon; nuclei; nuclear force; SU(3)symmetry; K中間子; ダブルハイパー核; K-中間子; 大追度陽子加速器; ストレンジクォーク物質; ハイペロン核子相互作用

Through many workshops on the various topics and symposiumsin the strangeness nuclear physics, we have obtained the following results ;1) The LAMBDA shell energy levels have been studied by (pi+, KAPPA+)spectroscopy of the LAMBDA-hypernuclei upto the Pb nuclei.2) The method of gammaspectroscopy of LAMBDA-hypernuclei has been investigated and R&D of the various gamma-detectors are in progress.3) The cross section for SIGMA+p elastic scattering has been measured with a scintillating fiber detector and this new method is proved quite useful to study hyperon-nucleon interaction through scattering experiments.4) The methods to improve the statistics of the double hypernuclei have been investigated and two experimental plans, a new hybrid-emulsion method and decay-pi-spectroscopy with a cylindrical chamber, are made and proposed to BNL and KEK.5) The accelerator and beam line for the strangeness nuclear physics have been discussed and we summarize our future plan, which is an important part of the future plan of Japanese nuclear and hadron physics.

通过许多关于奇异核物理的各种主题的讲习班和专题讨论会，我们获得了以下结果；1)利用（pi+, KAPPA+）光谱研究了LAMBDA-超核至Pb核的λ壳能级。2)研究了lambda -超核的伽玛能谱学方法，各种伽玛探测器的研发正在进行中。3)用闪烁光纤探测器测量了SIGMA+p弹性散射截面，并通过散射实验证明了这种新方法对研究超子-核子相互作用非常有用。4)研究了提高双超核统计性能的方法，提出了两种实验方案，一种新的混合乳化法和一个圆柱腔的衰变- π光谱，并向BNL和kek .提出。5)讨论了奇异核物理的加速器和束流线，并总结了我们的未来计划，这是日本核和强子物理未来计划的重要组成部分。

项目成果

K.Ikeda et al.,: "Formation of a Ξ^- Hypernucleus and Transitions to Double Λ states" Progress of Theoretical Physics. 91. 747-757 (1994)

K.Ikeda 等人，“Ξ^-超核的形成和向双Λ态的转变”理论物理学进展 91. 747-757 (1994)。

T.Hasegawa et al.,: "Core excited states of Λ^^<12>C hypernuclei formed in the (π^+,K^+)reaction" Physical Review Letters. 74. 224-227 (1995)

T.Hasekawa 等人：“(π^+,K^+) 反应中形成的 Λ^^12C 超核的核心激发态”物理评论快报 74. 224-227 (1995)。

T.Hasegawa et al.,: "Core excited states of ^<12>_^C hypernuclei formed in the (Π^+,K^+) reaction" Physical Reuiew Letters. 74. 224-227 (1995)

T.Hasekawa 等人：“(Π^+,K^+) 反应中形成的 ^<12>_^C 超核的核心激发态”物理评论快报 74. 224-227 (1995)。

Ikeda et al: "K.Formation of a *^- Hypernucleus and Transitions to Double LAMBDA states" Progress of Theoretical Physics. 91. 747-757 (1994)

Ikeda 等人：“K.*^- 超核的形成和向双 LAMBDA 态的转变”理论物理进展。

K.Ikeda et al.,: "Formation of a Ξ^- Hypernucle us and Transitions to Double Λ states" Progress of Theoretical Physics. 91. 747-757 (1994)

K.Ikeda 等人，“Ξ^-超核的形成和向双Λ态的转变”理论物理学进展 91. 747-757 (1994)。