Triple differential cross sections for liquid water ionization by impact of fast electrons

28th International Conference on Photonic, Electronic and Atomic Collisions

Sanctis, M. L. De^1 ; Politis, M.-F.^2 ; Vuilleumier, R.^3 ; Stia, C.^1 ; Fojón, O.^2

Institute de Fisica Rosario, UNR-CONICET, Pellegrini 250, Rosario

2000, Argentina^1

Laboratoire Analyse et Modération Pour la Biologie et l'Environnement, CNRS UMR 8587, Université d'Evry Val DEssonne, Bv. Mitterand, Evry

91025, France^2

École Normale Supéneure, Dépt. de Chimie, UMR 8640 CNRS-ENS-UPMC, rue Lhomond, 24, Paris

75005, France^3

关键词: Coplanar geometry;    Differential cross section;    Electron impact;    Fast electrons;    First-order models;    Theoretical study;    Triple differential cross sections;    Wannier orbitals;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/488/5/052024/pdf
DOI  :  10.1088/1742-6596/488/5/052024

来源: IOP

【 摘 要 】

A theoretical study for the ionization from several orbitals of the water molecules in liquid phase by electron impact is presented. Multiple differential cross sections are computed through a first order model considering an asymmetric coplanar geometry. The wavefunctions for a single liquid water molecule are obtained in a realistic way by using a Wannier orbital formalism. The comparison with previous theoretical results as well as experiments for the gas phase shows a qualitative agreement. Moreover, an analysis of the influence of the passive electrons is performed by the assistance of different static potentials.