Open AccessMultiple Ionization of Ne by H2+ Ions with Correlated Projectile Electron Loss
Author(s) -
M. M. Sant’Anna,
H. Luna,
A. C. F. Santos,
C. McGrath,
M B Shah,
Eric G. Cavalcanti,
G. M. Sigaud,
E. C. Montenegro
Publication year - 2004
Publication title -
physica scripta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.415
H-Index - 83
eISSN - 1402-4896
pISSN - 0031-8949
DOI - 10.1238/physica.topical.110a00374
Subject(s) - ionization , projectile , atomic physics , electron , ion , molar ionization energies of the elements , electron ionization , physics , nuclear physics , quantum mechanics
We consider multiple ionization of Ne by fast H2+, with and without projectile electron loss. Measurements of the total cross section for the direct ionization channel support the similarity of ionization of Ne by an H2+ projectile that does not break and Ne ionization by an equi-velocity proton. The multiple target ionization with projectile electron loss is analyzed within a proposed model, adapted from the independent particle model, taking into account post-collisional decay channels following the ionization of Ne 2s electrons. We point out that, for the H2+ + Ne collision system, the post-collisional decay channels have a prominent role in the multiple target ionization associated with the antiscreening mode (two-center electron-electron correlation).No Full Tex