One-electron capture from K shell of atomic targets by proton impact

2015 ◽  
Vol 24 (12) ◽  
pp. 1550093 ◽  
Author(s):  
Ebrahim Ghanbari-Adivi ◽  
Hoda Ghavaminia
Keyword(s):  
Experimental Data ◽  
Electron Capture ◽  
Cross Sections ◽  
Bound State ◽  
Capture Process ◽  
Single Electron Capture ◽  
Experimental Values ◽  
Three Body ◽  
Order Four ◽  
Correct Boundary Conditions

A first-order four-body perturbation theory is developed to calculate both the differential and integral cross-sections for [Formula: see text]-shell charge exchange from multi-electron atomic targets to the [Formula: see text] bound state of the fast proton projectiles. The correct boundary conditions are incorporated in the formalism. The model is applied to the single electron capture process from carbon, nitrogen, oxygen, neon and argon atoms for which the experimental data are available. The results are compared with their corresponding experimental values and also with those obtained from three-body version of the theory. A comparison is also made between the present predicted cross-sections and those obtained from other theories. Comparisons show that the suggested approximation is in reasonable agreement with the experimental data and is compatible with the other theories.

K-shell single-electron capture in collision of fast protons with multi-electron atoms

Open Physics ◽  
2013 ◽  
Vol 11 (4) ◽  
Author(s):  
Ebrahim Ghanbari-Adivi ◽  
Azimeh Velayati
Keyword(s):  
Electron Capture ◽  
Cross Sections ◽  
Bound State ◽  
Single Electron ◽  
Hartree Fock ◽  
High Energies ◽  
Single Electron Capture ◽  
Coulomb Boundary Conditions ◽  
Three Body ◽  
Fast Protons

AbstractSingle-electron capture from the K shell of atomic targets by impact of protons at moderate and high energies has been studied using a first-order three-body Coulomb-Born continuum distorted wave approximation. The applied formalism satisfies the correct Coulomb boundary conditions. Single-zeta Roothaan-Hartree-Fock wave functions are used to describe the initial electronic bound state of the exchanged electron. Both differential and integral capture cross sections are calculated for impact of protons on carbon, nitrogen, oxygen, neon and argon atoms. The results are compared with the available measurements and other theories. The agreement between the calculations and experimental data is remarkable.

scholarly journals Single-electron capture in ion-ion collisions

2020 ◽  
Vol 18 (2) ◽  
pp. 131-139
Author(s):  
Danilo Delibasic ◽  
Nenad Milojevic ◽  
Ivan Mancev
Keyword(s):  
Electron Capture ◽  
Cross Sections ◽  
Scaling Law ◽  
Single Electron ◽  
Final States ◽  
Total Cross Sections ◽  
Ion Collisions ◽  
Single Electron Capture ◽  
Body Boundary ◽  
Three Body

The prior versions of the three-body boundary-corrected first Born approximation (CB1-3B) and the three-body boundary-corrected continuum intermediate states method (BCIS-3B) are applied to calculate the state-selective and state-summed total cross sections for single-electron capture from hydrogen-like ion targets (He+, Li2+) by fast completely stripped projectiles (H+, He2+, Li3+). All calculations are carried out for single-electron capture into arbitrary n l m final states of the projectiles, up to n = 4. The contributions from higher n shells are included using the Oppenheimer n?3 scaling law. The present results are found to be in satisfactory agreement with the available experimental data.

Dissociation and Charge Transfer of CO21+ and CO22+ Ions in Collisions with Neutral Atoms and Molecules

1977 ◽  
Vol 32 (6) ◽  
pp. 555-557 ◽  
Author(s):  
A. Müller ◽  
E. Salzborn
Keyword(s):  
Charge Transfer ◽  
Electron Capture ◽  
Cross Section ◽  
Cross Sections ◽  
Impact Energy ◽  
Linear Dependence ◽  
Hard Sphere ◽  
Single Electron Capture ◽  
Target Particle ◽  
Total Collision

AbstractCross sections for single electron capture by CO22+ ions as well as total collision cross sections σi,tot (i=1, 2) for CO21+ and CO22+ ions in He, Ne, Ar, Kr, Xe, H2, O2, N2, CH4 and CO2 gases have been measured at 10 keV impact energy. σ2,1 varies between 4.5·10-17cm2 for the He and 1.8·10·15cm2 for the CO, target. On the average, σ2,1,tot is 1.6 times larger than σ1,tot and shows a nearly linear dependence on the gaskinetic hard sphere cross section of the target particle. The largest observed value of σ2,tot is 9.4·10-15cm2 for the CO2 target.

Sign in / Sign up

Export Citation Format

Share Document