Resonant transfer and excitation in collisions of chlorinelike ions with H2 targets

The resonant transfer and excitation cross sections through the LMM transitions in collisions of chlorinelike Fe9+, Nb24+, and La40+ with H2 targets were calculated in impulse approximation using the multiconfiguration Dirac-Fock method. The effect of relativity reduces the total LMM resonance strength for La40+ by 29%. The angular distribution corrections at θ=90 degree increase the cross sections by an amount less than 10%. The present theoretical predictions for La40+ colliding with H2 are in reasonable agreement with the experimental observations