THEORETICAL STUDY ON THE DYNAMICAL PROCESSES EXOTIC MOLECULES

本课题的研究可分为三个方面；(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)核外核子、强子和电子的相互作用过程。有一些常见的研究课题可以与这三个项目相关。丰岛用超螺旋坐标法开发了一种非常有效的编码，并将其应用于位置、质子和反质子的散射问题。Kamimura提出了重排信道方程紧密耦合的新方法，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。福岛对凝聚态中介子分子的形成作了系统的研究。他指出，即使在气相中低于阈值的能量下，固相中的分子形成也能发生。永胺建造了一种新的仪器，可以进行更精确的实验。对于(2)，Shimamura利用分子模型对pHe+进行了精确的能级计算，并对一些物理量进行了估计。Ohtsuki使用原子模型研究了几种p俘获的外来原子的稳定性。特别对pNe+进行了详细的研究。Watanabe对pHe+与He碰撞的激发和去激发进行了计算。对于(3)，Akaishi系统地研究了包括负电荷重强子粒子在内的外来原子中的级联过程。Narumi研究了k -介子原子中的2核子吸收过程。

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.