中高能α粒子与类氦离子和Li原子碰撞中电子俘获截面的计算

ELECTRON CAPTURE BY ALPHA PARTICAL FROM HELIUM-LIKE IONS AND LITHIUM ATOM AT INTERMEDIATE-HIGH ENERGY RANGE

用两态原子轨道展开方法研究计算了中高能α粒子与类氦离子（Ｂｅ２＋，Ｂ３＋，Ｃ４＋，Ｎ５＋，Ｏ６＋）和Ｌｉ原子碰撞中电子俘获截面。结果表明，在中高能区的结果与实验较好地符合。

We calculate the total electron-capture cross sections for colliding systems: H 2+ e+B 2+ e, B 3+ , C 4+ , N 5+ , O 6+ and H 2+ e+Li( 1s 22s ) by two-state atomic expansion method. Our results are in good agreement with the experimental values at the intermediate-high energy range