Fully differential cross sections in single ionization of helium by ion impact: Assessing the role of correlated wave functions

TY - JOUR

T1 - Fully differential cross sections in single ionization of helium by ion impact

T2 - Assessing the role of correlated wave functions

AU - Ciappina, M. F.

AU - Cravero, W. R.

N1 - Funding Information: This work was partially supported by ANPCyT under PICTO UNS 931. The authors acknowledge M. Schulz for sending us the experimental data in text format and A. Becker for the critical reading of the preliminary version of this manuscript.

PY - 2008/2

Y1 - 2008/2

N2 - We study the effect of final state dynamic correlation in single ionization of atoms by ion impact analyzing fully differential cross sections (FDCS). We use a distorted wave model where the final state is represented by a Φ2 type correlated function, solution of a non-separable three body continuum Hamiltonian. This final state wave function partially includes the correlation of electron-projectile and electron-recoil relative motion as coupling terms of the wave equation. A comparison of fully differential results using this model with other theories and experimental data reveals that inclusion of dynamic correlation effects have little influence on FDCS, and do not contribute to a better description of available data in the case of electronic emission out-of scattering plane.

AB - We study the effect of final state dynamic correlation in single ionization of atoms by ion impact analyzing fully differential cross sections (FDCS). We use a distorted wave model where the final state is represented by a Φ2 type correlated function, solution of a non-separable three body continuum Hamiltonian. This final state wave function partially includes the correlation of electron-projectile and electron-recoil relative motion as coupling terms of the wave equation. A comparison of fully differential results using this model with other theories and experimental data reveals that inclusion of dynamic correlation effects have little influence on FDCS, and do not contribute to a better description of available data in the case of electronic emission out-of scattering plane.

KW - Collisions

KW - Correlated wave functions

KW - Ion-atom

KW - Ionization

UR - http://www.scopus.com/inward/record.url?scp=40249111485&partnerID=8YFLogxK

U2 - 10.1016/j.nimb.2007.12.077

DO - 10.1016/j.nimb.2007.12.077

M3 - 文章

AN - SCOPUS:40249111485

SN - 0168-583X

VL - 266

SP - 555

EP - 560

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

IS - 4

ER -