Spin effects in double photoionization of lithium

Spin effects in double photoionization of lithium
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锂双光电离中的自旋效应

DOI：
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发表时间：
2010
期刊：
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通讯作者：
M. Pindzola
M. Pindzola
中科院分区：
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文献类型：
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作者：
A. Kheifets;D. Fursa;C. Hines;I. Bray;J. Colgan;M. Pindzola

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采用非微扰收敛紧耦合(CCC)和含时紧耦合(TDCC)方法，计算了锂原子双光电离(DPI)的全微分能和角分辨截面。在等能量共享的情况下，DPI过程的动力学可以用两个对称的单态和三态振幅来充分描述。这些幅值的角宽度可以用来衡量两个被抛射的电子之间角关联的强度。这个宽度是用光电子对的自旋来解释的。
We apply the nonperturbative convergent close-coupling (CCC) and time-dependent close coupling (TDCC) formalisms to calculate fully differential energy and angular resolved cross sections of double photoionization (DPI) of lithium. The equal energy sharing case is considered in which dynamics of the DPI process can be adequately described by two symmetrized singlet and triplet amplitudes. The angular width of these amplitudes serves as a measure of the strength of the angular correlation between the two ejected electrons. This width is interpreted in terms of the spin of the photoelectron pair.