Open AccessThe calculation of triple-differential cross sections of hydrogen atom single-io nization by electrons
Author(s) -
C. H. Zhang,
Weiguang Qiu,
Jinghua Xin,
Yin Yin Nu,
X. W. Wang,
J. Y. Wang
Publication year - 2003
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.52.2449
Subject(s) - atomic physics , physics , ionization , cross section (physics) , electron , hydrogen atom , projectile , kinetic energy , hydrogen , differential (mechanical device) , matrix (chemical analysis) , plane (geometry) , atom (system on chip) , wave function , quantum mechanics , ion , geometry , materials science , mathematics , computer science , composite material , group (periodic table) , thermodynamics , embedded system
A simple model is proposed to study the ionization of the atomic hydrogen by fast election impact in coplanar asymmetric geometry, making use of the post form of the enery shell transition matrix element and the two-potential formula. By virtue of dividing the full kinetic energy operator, we obtain an approximate solution of the three body problem through the canceling of the motion of two-election mass and exponent factor of relative motion and the approximation of projectile plane wave. TDCS(triple differential cross section) is expressed by the product of two factors,the structure factor T2 and correlation one T12. In this article, the contribution of these factors is investigated using the method of asymptotic series and method.