Photoionization of water molecules by high energy photons

  • Lara Martini Laboratorio de Colisiones Atómicas, Instituto de Física Rosario (CONICET-UNR)
  • Diego Boll Laboratorio de Colisiones Atómicas, Instituto de Física Rosario (CONICET-UNR)
  • Omar Fojón Laboratorio de Colisiones Atómicas, Instituto de Física Rosario (CONICET-UNR)
Keywords: Photoionization, water molecules, cross sections

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 Fojón, Papers in Physics 9, 090006 (2017)

This paper, by L Martini, D I R Boll, O A Fojón, is licensed under the Creative Commons Attribution License 3.0.

 

Traditional Review
Published
2017-08-17
How to Cite
Martini, L., Boll, D., & Fojón, O. (2017). Photoionization of water molecules by high energy photons. Papers in Physics, 9, 090006. https://doi.org/10.4279/pip.090006
Section
Articles