期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
H^+与B原子碰撞电离微分散射截面的研究
1
作者 叶丹丹 胡亚华 《嘉兴学院学报》 2011年第6期47-50,103,共5页
利用初态程函近似-连续扭曲波方法(CDW-EIS)研究了质子与B原子的碰撞电离过程。计算了入射粒子能量分别为100keV/u,1 000keV/u,10 000keV/u情况下的1s、2s、2p分波电离二阶微分截面及其总的二阶微分散射截面。并利用计算结果详细讨论和... 利用初态程函近似-连续扭曲波方法(CDW-EIS)研究了质子与B原子的碰撞电离过程。计算了入射粒子能量分别为100keV/u,1 000keV/u,10 000keV/u情况下的1s、2s、2p分波电离二阶微分截面及其总的二阶微分散射截面。并利用计算结果详细讨论和分析了软碰撞(SC)、电子俘获到入射粒子连续态(ECC)和两体相遇碰撞(BE)的碰撞电离机理,并对各分波二阶微分散射截面进行了比较。 展开更多
关键词 重离子碰撞电离 初态程函近似-连续扭曲波方法 二阶微分散射截面
下载PDF
Level Width Broaden Effect
2
作者 ZHANGJing-Shang 《Communications in Theoretical Physics》 SCIE CAS CSCD 2004年第4期587-592,共6页
In fitting the double-differential measurements thelevelwidth broadening effect should be taken into account properly due to Heisenberg uncertainty.Besides level width broadening effect the energy resolution in the me... In fitting the double-differential measurements thelevelwidth broadening effect should be taken into account properly due to Heisenberg uncertainty.Besides level width broadening effect the energy resolution in the measurements is also needed in this procedure.In general,the traditional normal Gaussian expansion is employed.However,the research indicates that to do so in this way the energy balance could not hold.For this reason,the deformed Gaussian expansion functions with exponential form for both the single energy point and continuous spectrum are introduced,with which the normalization and energy balance conditions could hold exactly in the analytical form. 展开更多
关键词 level width broadening double-differential cross section energy balance
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部