“…As shown in Section 2.3, eqn ( 21) and ( 22), DE competes with DR via two mechanisms, DE1 and DE2, relying on the two relevant vibrational continua, that of the ground and the lowest excited electronic state, respectively. We have shown previously 21 that DE2 strongly dominates DE1 at high energy, and the account of this mechanism in the present approach explains the huge values of the DE with respect to that computed in the previous one, above 3 eV. This difference is coherent with that, in the converse sense, between the DR cross sections, manifesting itself above 5 eV, DR competing with DE.…”