Molecular treatment of single (dissociative and nondissociative) and double electron capture in He2++H2 collisions

We present close-coupling calculations of total cross sections for single and double electron capture in He2+ + H-2 collisions in the range 0.5-25 keV amu(-1), and compare them with experimental data. We confirm the experimental finding that the dominant process for E greater than or similar to keV amu(-1). is the nondissociative capture He2+ + H-2 --> He+ (2l) + H-2(+)(1 sigma(g)), while at lower energies it is dissociative capture leading to He+ (1 s) + H+ + H. Our calculations also show that He (1s2l) is the main output of the two electron capture process.