ELASTIC-SCATTERING OF ELECTRONS FROM XE, CS+, AND BA2+

被引：55

作者：

JOHNSON, WR ^{[1
]}

GUET, C ^{[1
]}

机构：

[1] CEN GENOBLE, CEA, DEPT RECH FONDAMENTALE MAT CONDENSEE, F-38041 GRENOBLE, FRANCE

来源：

PHYSICAL REVIEW A | 1994年 / 49卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.49.1041

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Relativistic many-body perturbation theory is applied to study the elastic scattering of electrons from xenon and fi om the xenonlike ions Cs+ and Ba2+, below their respective inelastic thresholds. The quasiparticle equation for the electron scattering wave function is solved in second-order perturbation theory starting from the Hartree-Fock approximation. Phase shifts for partial waves with l = 0-5 are determined as functions of electron momentum for each ion. The theoretical elastic scattering cross section for xenon is found to be in agreement with experiment, showing a Ramsauer-Townsend minimum below 1 eV. Agreement with experiment is also found for differential cross sections and scattering asymmetry functions for xenon. Differential cross sections and scattering asymmetry functions for Cs+ and Ba2+ are predicted at 10 eV.

引用

页码：1041 / 1048

页数：8

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