CROSS-SECTIONS FOR RESONANT CHARGE-TRANSFER BETWEEN ATOMS AND THEIR POSITIVE-IONS - COLLISION VELOCITY LESS-THAN-OR-EQUAL-TO-1 AU

Calculated cross sections for resonant charge transfer between atoms and their positive ions are presented in tables and graphs for all nontransition elements in the range of low and intermediate collision velocities (≲1 a.u.). Experimental data obtained since the 1930s are compiled. The cross sections have been calculated by the impact-parameter and close-coupling methods. To solve the one-electron, time-dependent, spinless electronic wave function in a two-atom system, the wave function was expanded in terms of a set of traveling atomic wave functions centered about either nucleus. As the eigenfunction of each atom, Hartree-Fock-Slater wave functions were used. The calculated results are in fairly good agreement with the compiled experimental results for the thoroughly studied elements and thus provide a useful interpolation/extrapolation of the experimental data. © 1991.