用扭曲波方法,推广了修正的库仑波恩(MCB)近似计算到重离子碰撞He原子电离问题计算.检查了对75 ke V质子碰撞氦原子单电离的全微分截面的应用情况.结果表明,现在的方法定性地产生了实验的峰结构,尤其是在垂直平面.应用MCB方法研究这一...用扭曲波方法,推广了修正的库仑波恩(MCB)近似计算到重离子碰撞He原子电离问题计算.检查了对75 ke V质子碰撞氦原子单电离的全微分截面的应用情况.结果表明,现在的方法定性地产生了实验的峰结构,尤其是在垂直平面.应用MCB方法研究这一碰撞体系中的后碰撞(PCI)效应,发现PCI效应对全微分截面的形状在散射平面和垂直平面都有着强烈的影响.同时,分析了扭曲效应对全微分截面的贡献.表明,随着动量转移的增加,扭曲效应的作用变得越来越重要.尤其是,扭曲效应定性解释了负角区域的结构.展开更多
The effect of final-state dynamic correlation is investigated for ionization of atomic hydrogen by 75-keV proton impact by analyzing double differential cross sections.The final state is represented by a continuum cor...The effect of final-state dynamic correlation is investigated for ionization of atomic hydrogen by 75-keV proton impact by analyzing double differential cross sections.The final state is represented by a continuum correlated wave(CCW-PT)function which accounts for the interaction between the projectile and the target nucleus(PT interaction).The correlated final state is nonseparable solutions of the wave equation combining the dynamics of the electron motion relative to the target and projectile,satisfying the Redmond’s asymptotic conditions corresponding to long range interactions.The transition matrix is evaluated using the CCW-PT function and the undistorted initial state.Both the correlation effects and the PT interaction are analyzed by the present calculations.The convergence of the continuous correlated final state is examined carefully.Our results are compared with the absolute experimental data measured by Laforge et al.[Phys.Rev.Lett.103,053201(2009)]and Schulz et al.[Phys.Rev.A 81,052705(2010)],as well as other theoretical models(especially the results of the latest non perturbation theory).We have shown that the dynamic correlation plays an important role in the ionization of atomic hydrogen by proton impact.While overall agreement between theory and the experimental data is encouraging,detailed agreement is still lacking.However,such an analysis is meaningful because it provides valuable information about the dynamical correlation and PT interaction in the CCW-PT theoretical model.展开更多
文摘用扭曲波方法,推广了修正的库仑波恩(MCB)近似计算到重离子碰撞He原子电离问题计算.检查了对75 ke V质子碰撞氦原子单电离的全微分截面的应用情况.结果表明,现在的方法定性地产生了实验的峰结构,尤其是在垂直平面.应用MCB方法研究这一碰撞体系中的后碰撞(PCI)效应,发现PCI效应对全微分截面的形状在散射平面和垂直平面都有着强烈的影响.同时,分析了扭曲效应对全微分截面的贡献.表明,随着动量转移的增加,扭曲效应的作用变得越来越重要.尤其是,扭曲效应定性解释了负角区域的结构.
基金Project supported by the National Natural Science Foundation of China(Grant Nos.11974229 and 11274215)。
文摘The effect of final-state dynamic correlation is investigated for ionization of atomic hydrogen by 75-keV proton impact by analyzing double differential cross sections.The final state is represented by a continuum correlated wave(CCW-PT)function which accounts for the interaction between the projectile and the target nucleus(PT interaction).The correlated final state is nonseparable solutions of the wave equation combining the dynamics of the electron motion relative to the target and projectile,satisfying the Redmond’s asymptotic conditions corresponding to long range interactions.The transition matrix is evaluated using the CCW-PT function and the undistorted initial state.Both the correlation effects and the PT interaction are analyzed by the present calculations.The convergence of the continuous correlated final state is examined carefully.Our results are compared with the absolute experimental data measured by Laforge et al.[Phys.Rev.Lett.103,053201(2009)]and Schulz et al.[Phys.Rev.A 81,052705(2010)],as well as other theoretical models(especially the results of the latest non perturbation theory).We have shown that the dynamic correlation plays an important role in the ionization of atomic hydrogen by proton impact.While overall agreement between theory and the experimental data is encouraging,detailed agreement is still lacking.However,such an analysis is meaningful because it provides valuable information about the dynamical correlation and PT interaction in the CCW-PT theoretical model.
