Theory of Dynamics in Atomic Processes : Physics of Highly Charged Ions

(1)以高电荷离子为例，利用考虑相对论效应的R矩阵理论计算了类He离子（sxv等）的电子冲击激发截面，并分析了它们在等电子上的行为。(2)作为高电荷离子的另一个例子，用R矩阵理论计算了类Ca离子fevii的电子冲击激发截面，并与其他情况下的截面进行了比较。(3)用R -矩阵法计算了最近引起广泛关注的多次激发空心原子之一，即光子撞击形成三次激发空心Li原子。结果与最近的SR实验结果进行了比较。(4)为了研究原子与负电荷粒子碰撞的特殊物理性质，采用经典轨迹蒙特卡罗方法研究了反质子与原子碰撞时反质子原子的形成。(5)作为一种特殊的碰撞系统，对低能离子-原子在强磁场中的碰撞进行了理论处理，并计算了碰撞截面。日本-英国研讨会于1999年7月30日、31日和8月1日在日本理化研究所举行，以介绍和讨论日本-英国合作的成果，这些成果源于目前的合作计划。其他正在日本和英国进行的研究也进行了介绍，并讨论了未来可能的合作。

The following resulted from the collaboration with the British scientists : (1) As an example of highly charged ions , the electron - impact excitation cross sections for He - like ions ( S XV, etc. ) have been calculated using the R - matrix theory including the relativistic effects , and their behavior along the isoelectronic was analyzed . (2) As another example of highly charged ions , the electron - impact excitation cross sections for the Ca - like ions Fe VII have also been calculated using the R - matrix theory and they have been compared with the cross sections for other cases . (3) One of the multiply excited hollow atoms that attract much recent interest , I. e. , formation of triply excited hollow Li atoms by photon impact was calculated by the R - matrix method . The results were compared with the recent SR experiments . (4) For the purpose of studying the peculiar physics of collisions of atoms with negatively Charged particles , the formation of antiprotonic atoms in collisions of antiprotons with atoms was studied using the classical trajectory Monte Carlo method . (5) As a peculiar collision system , low - energy ion - atom collisions in a strong magnetic field was treated theoretically and their cross sections were calculated .Japan - UK seminar was held at RIKEN on July 30 , 31 and August 1 , 1999 to present and discuss the results of Japan - UK collaboration resulting from the present collaboration program . Other researches going on in Japan and in UK were also presented and possible future collaborations are discussed .