从赝态能量位移产生相移
Generating phase shifts from pseudo state energy shifts
摘要：
一个简单的方法来产生低能量的弹性散射的相移，使用束缚态计算的假设，验证和应用到的问题的e+ - Mg散射。该方法的实质是利用小的参考计算和最低能量赝态的最大可能计算之间的能量移位来调谐半经验光学势。电子+ -镁散射的L = 1分波被预测为在约0.13 eV的能量处具有形状共振。共振中心处的Zeff值约为1500。
英文摘要：
A simple way to generate low energy phase shifts for elastic scattering using bound-state calculations is postulated, validated and applied to the problem of e+ - Mg scattering. The essence of the method is to use the energy shift between a small reference calculation and the largest possible calculation of the lowest energy pseudo-state to tune a semi-empirical optical potential. The L = 1 partial wave for e+ - Mg scattering is predicted to have a shape resonance at an energy of about 0.13 eV. The value of Zeff at the center of the resonance is about 1500.
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