Formation of the ion-pair in electron recombination with H+3

We present a two-dimensional theoretical study of the formation of the ion-pair, H+2 + H−, in electron recombination with H+3 in its ground electronic and vibrational state. The relevant potential energy surfaces, electronic couplings and autoionization widths are calculated by combining electron scattering calculations with quantum chemistry calculations. The nuclear dynamics on six coupled electronic states is studied by propagating wave packets using the MCTDH (Multi Configuration Time-Dependent Hartree) method. Also the cross section for ion-pair formation in electron recombination with D+3 is calculated.