THEORETICAL STUDY ON THE DYNAMICAL PROCESSES EXOTIC MOLECULES

奇异分子动力学过程的理论研究

基本信息

批准号：
04302018
负责人：
WATANABE Tsutomu
金额：
$ 4.54万
依托单位：
INTERNATIONAL CHRISTIAN 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-04302018/
关键词：
muon catalized nuclear fusion low temperature nuclear fusion extra-ordinary long lifetime antiproton exisotic atoms mesonic atoms Coulomb 3-body problem Auger process particle transfer collision ミューオン触媒核融合常温核融合エキチック原子中間子科学クーロン3

项目摘要

The research of this projects can be classified into three ; (1) atomic processes in m-particle catalyzed nuclear reaction, (2) Atomic processes in extraordinarily long life pHe+, (3) Interaction processes among nucleon, hadron, and electrons outside nucleus. There are some common research subjects that can be related to all of these three items. Toshima developed a very efficient code by using Hypershperical coordinate method, and he applied the code to the scattering problems of a position, a proton or an antiproton. Kamimura developed the new method of close-coupling in rearrangement channel equations and investigated feasibility of the method by using Gaussian function as basic sets. As for (1), Hara calculated the Auger process of [(dtm) +dee] and [(ddm) +dee]. Fukushima have made a systematic investigation of muonic molecule formation in condensed phase. He showed that the molecule formation in solid phase can occur even in the energy below threshold in gas phase. Nagamine has constructed a new instrument which can make more accurate experiments. As for (2), Shimamura has make a precise energy level calculation of pHe+using the molecular model and he also has made estimation of some physical quantities. Ohtsuki has investigated the stabilities of sereral p-captured exotic atoms using the atomic model. Particularly, the detailed investigation was made on pNe+. Watanabe made calculation for the excitation and the de-excitation of pHe+ by collision with He. As for (3), Akaishi has studies systematically the cascade process in the exotic atoms including negative charged heavy hadronic particles. Narumi has investigated the 2-nucleon absorption process in K-mesonic atoms.

本项目的研究内容可分为三部分：（1）m粒子催化核反应中的原子过程，（2）超长寿命pHe+中的原子过程，（3）核子、强子和核外电子之间的相互作用过程。有一些常见的研究主题可以与所有这三个项目相关。 Toshima 使用超球面坐标方法开发了一个非常有效的代码，并将该代码应用于位置、质子或反质子的散射问题。 Kamimura提出了重排通道方程中紧耦合的新方法，并以高斯函数为基本集研究了该方法的可行性。对于(1)，Hara计算了[(dtm)+dee]和[(ddm)+dee]的俄歇过程。福岛对凝聚态μ子分子的形成进行了系统研究。他表明，即使能量低于气相阈值，也可以发生固相分子形成。长岭建造了一种新仪器，可以进行更准确的实验。对于(2)，岛村利用分子模型对pHe+的能级进行了精确的计算，并对一些物理量进行了估算。 Ohtsuki 使用原子模型研究了一系列 p 捕获的奇异原子的稳定性。特别是对pNe+进行了详细的研究。 Watanabe 计算了 pHe+ 与 He 碰撞的激发和去激发。对于(3)，赤石系统地研究了包括带负电的重强子粒子在内的奇异原子的级联过程。 Narumi 研究了 K 介子原子中的 2 核子吸收过程。