Photoionization of water molecules by high energy photons

IF 1.2 Q3 PHYSICS, MULTIDISCIPLINARY

Papers in Physics Pub Date : 2017-08-17 DOI:10.4279/PIP.090006

L. Martini, D. Boll, O. Fojón

引用次数: 4

Abstract

We theoretically study the photoionization of water molecules by high energy photon impact. We develop a model in which the final state wavefunction is given by a Coulomb continuum wavefunction with effective charges and the water molecule bound states are represented using the Moccia's monocentric wavefunctions. We obtain analytical expressions for the transition matrix element that enable the computation of cross sections by numerical quadratures. We compare our predictions for photon energies between 20 and 300 eV with more elaborated theoretical results and experiments. We obtain a very good agreement with experiments, in particular, at enough high energies where there is a lack of elaborated results due to their high computational cost. Received: 15 March 2017, Accepted: 25 June 2017; Edited by: S. Kais; DOI: http://dx.doi.org/10.4279/PIP.090006 Cite as: L Martini, D I R Boll, O A Fojon, Papers in Physics 9, 090006 (2017) This paper, by L Martini, D I R Boll, O A Fojon , is licensed under the Creative Commons Attribution License 3.0 .

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高能量光子对水分子的光离作用

我们从理论上研究了高能光子撞击水分子的光离。我们建立了一个模型，其中最终状态波函数由带有效电荷的库仑连续波函数给出，而水分子的束缚状态用Moccia的单中心波函数表示。我们得到了可以用数值正交法计算截面的过渡矩阵元的解析表达式。我们将光子能量在20和300 eV之间的预测与更详细的理论结果和实验结果进行了比较。我们得到了与实验非常一致的结果，特别是在足够高的能量下，由于计算成本高而缺乏详细的结果。收稿日期:2017年3月15日，收稿日期:2017年6月25日;编辑:S. Kais;本文由L Martini, D I R Boll, O A Fojon撰写，采用知识共享署名许可3.0协议进行授权。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Papers in Physics PHYSICS, MULTIDISCIPLINARY-

CiteScore

1.90

自引率

0.00%

发文量

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