Electron-Capture Cross Sections of Ground-State O2+ Recoil Ions in Slow Collisions with H2 and O2

Electron-Capture Cross Sections of Ground-State O2+ Recoil Ions in Slow Collisions with H2 and O2

We report the measured total charge-transfer (electron-capture) cross sections for the ground state + 2 O (X Πg) ions with H2 and O2 molecular gases in the collision energy range between 0.50 and 2 keV. The time-of-flight technique has been used to measure the fast neutral products from + 2 O charge transfer reactions. The analyzed process has cross sections that continue to increase slowly, as...

Recoil ions from close 20-keV H+ collisions with O2, CO, CO2, and Ne.

R-matrix calculation of differential cross sections for low-energy electron collisions with ground-state and electronically excited-state O2 molecules

Differential cross sections for electron collisions with the O2 molecule in its ground X 3 g − state, as well as excited a 1 g and b 1 g + states are calculated. As previously, the fixed-bond R-matrix method based on stateaveraged complete active space self-consistent-field orbitals is employed. In addition to elastic scattering of electron with the O2 X 3 g , a 1 g, and b 1 g + states, electro...

State-selective electron capture in collisions of ground and metastable N2+ ions with H„1s..

An ab initio calculation of the electron capture cross sections for collisions of ground and metastable states of N2+ with Hs1sd is presented. Total cross sections are evaluated for N impact energies from 2 310−3 to 300 keV, using both quantal and semiclassical treatments. The results are compared with experimental and previous theoretical data, and are used to check the presence of metastable ...

Reevaluation of electron-capture cross sections in C1 H collisions

We calculated the total electron-capture cross section for collisions of C ions with atomic hydrogen in the energy range of 10–2000 eV/nucleon using the close-coupling two-center atomic orbital expansion method. Various basis sets have been used to check the convergence of the calculation and the results are shown to be in general agreement with existing experimental data. However, we found no ...