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Positron Scattering from Pyridine and Pyrimidine

机译:正电子散射吡啶和嘧啶

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摘要

Positron impact scattering cross-sections for pyridine and pyrimidine are reported here. Spherical complex optical potential formalism is used to calculate the positronium formation, elastic, total, and differential cross-sections. The ionization cross-sections calculated here are obtained employing the complex scattering potential-ionization contribution method. To account for the complex molecular structure of the target, an effective potential method is employed in our formalism for the first time. The contribution from rotational excitation is also included, which shows a reasonable comparison with the experimental data. The results obtained using the modified approach are encouraging and show very good agreement with the measurements. The differential cross-section for pyridine is reported for the first time.
机译:这里据报道了吡啶和嘧啶的正电子撞击散射横截面。 球形复杂光学电位形式主义用于计算正电子形成,弹性,总和差分横截面。 这里计算的电离横截面采用复杂的散射电离电离贡献方法获得。 为了考虑目标的复杂分子结构,首次采用有效的潜在方法。 还包括旋转激励的贡献,其显示与实验数据的合理比较。 使用修改方法获得的结果是令人鼓舞的,并展示与测量值非常吻合。 首次报告吡啶的差异横截面。

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