Spin Resonances in Nuclei

原子核中的自旋共振

基本信息

批准号：
07044085
负责人：
EJIRI Hiroyasu
金额：
$ 1.86万
依托单位：
Osaka University
依托单位国家：
日本
项目类别：
Grant-in-Aid for international Scientific Research
财政年份：
1995
资助国家：
日本
起止时间：
1995 至无数据
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07044085/
关键词：
Solar Neutrino Gamma ray Gammow-Teller Resonance Giant Resonance Neclei Cyclotron Supernovae Double beta decay

项目摘要

The present project for the cooperative scientific ininvestigation of the spin-sisospin excitations in nuclei aims to study the "Spin Excitations in Nuelei" in both the cyclotron institutes at RCNP (Research Center for Nuclear Physics, Osaka University) and at KVI (Groningen, The Netherlands). This fiscal yaer, we have measured, for the first time, the gamma decay from the Gamow-Teller resonances via the ^<90>Zr (^3He, t)^<90>N band ^<71>Ga (^3He, t)^<71>Ge reactions at the ^3He bombarding energy of 450 MeV.These studies are important to give basic data for the solar neutrino detection as well as the basic understanding of the spin excitation in nuclei. The data are aslo important in uderstanding the double deta decay.The experimental program of investigation the isovector monopole giant resonaces are discussed in the AGOR cyclotron facility as well as in the RCNP facility. The AGRO cyclotron could accelerate the first beam in October 1995. The beam transport line has been established. The magnetic spectrometer is ready for the measurement of the (^3He, t) reactions in coincidence with decay neutrons and protons. We futhemore discuss the collaboration work accociated with the "EuroSuperNovae" project, in which the neutrino absorption cross-sections by nuclei are studied in order to understand the explosion mechanisms of typeII supermovae.The gamma emittion processes in the protonproton and proton-nucleus collisions are one of the syubjects to be studied in this project . Theoretical studies are in progress very much. The experimental setup for the detection of the high energy gamma rays are mostly finished at KVI.

本核中自旋 - 苏氨酸激发的合作科学侵害的本项目旨在研究RCNP的Cyclotron Institutes（大阪大学核物理学研究中心）和KVI（荷兰格罗宁根）的Cyclotron Institutes中的“自旋激发”。我们首次通过^<90> Zr（^3he，t）^<90> n band^<71> ga（^3he，^3he，t）^<71> GE在450 mev的反应中，该研究的研究是450级研究，该研究是有效的，该研究是在450 mev的基本研究中，该研究是有效的，这是该研究的研究，这是^3he bombarding的研究，该研究是有效的，这是该研究的重要性，这是该研究的重要性，这是该研究的重要性，我们对这一研究的研究很重要，这是该研究的重要性，我们对这个财务的研究很重要。对核中自旋激发的基本理解。数据对双重DETA衰减很重要。 Agro Cyclotron可以在1995年10月加速第一个光束。已经建立了光束传输线。磁光谱仪已准备好与衰减中子和质子一致的（^3he，t）反应的测量。我们Futhemore讨论了与“ Eurosupernovae”项目相关的合作工作，其中研究了核的中微子吸收横截面，以了解Typeii supermovae的爆炸机制。Protonproton和Proton-Nucleus Collisions中的gamma emittion过程是该项目的一个项目。理论研究正在进行中。检测高能伽马射线的实验设置大多在KVI上完成。