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首页> 外文期刊>Journal of Physics Communications >A study of the critical minima and spin polarization in the elastic electron scattering by the lead atom
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A study of the critical minima and spin polarization in the elastic electron scattering by the lead atom

机译：铅原子在弹性电子散射中的临界极小值和自旋极化的研究

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A complex optical potential, in the framework of Dirac partial wave analysis, is employed to study the minima in the differential cross sections (DCSs) and the spin polarization due to the elastic scattering of electron by Pb atom. In addition, integral, momentum-transfer, absorption, viscosity and total cross sections are also reported for the energy region 6 eV ≤E_i≤10 keV. This complex optical potential comprises the static, exchange, polarization and absorption components. We obtain, in total, 12 critical minima (CM) positions, where DCS attains its smallest values and 22 points with of the maximum values of spin polarization (MSP). CM and MSP are found to be correlated in terms of E_i and scattering angles where the spin-flip amplitude overrides the magnitude of their direct counterpart. As per as we know, there is neither any experimental nor any theoretical study on CM of e-Pb scattering available in the literature. A detailed comparison shows a good agreement between our predicted results with the available experimental and other theoretical findings.
机译：在狄拉克分波分析的框架内，利用一个复杂的光学势来研究微分截面（DCSs）的最小值以及由于Pb原子对电子的弹性散射而导致的自旋极化。此外，还报告了能量区域6 eV≤E_i≤10keV的积分，动量传递，吸收，粘度和总横截面。这种复杂的光势包括静电，交换，偏振和吸收分量。我们总共获得12个临界最小值（CM）位置，其中DCS达到其最小值，而自旋极化（MSP）达到最大值的22个点。发现CM和MSP在E_i和散射角方面相关，其中自旋翻转幅度超过了其直接对应的幅度。据我们所知，文献中没有关于e-Pb散射CM的任何实验或理论研究。详细的比较表明，我们的预测结果与可用的实验结果和其他理论发现之间有很好的一致性。

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