High Energy Reactive Collisions of Electrons with Hydrogen Diatomic Molecular Cation Isotopomers

Reactive collisions between electrons and BeH+ above dissociation threshold

“…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.…”

“…V L d i d j , V L d i w , V L vv 0 and V L ww 0 , vanish, since in the quasidiabatic representation chosen here, they concern pairs of channels associated with the same ionic core. 25 Taking into account the non-vanishing matrix elements related to the available dissociation and ionization channels, the second order K-matrix reads: 16,21…”

Population of ground and lowest excited states of sulfur via the dissociative recombination of SH+ in the diffuse interstellar medium

“…where the collective indices d, vc1 , vc2 span the ensembles of all individual indices d, v c1 and v c2 , which respectively label dissociation channels, ionization channels built on core 1 and ionization channels built on core 2. An extensive and rigorous derivation of the structure of each block of the K-matrix in second order for a multicore case was provided in our earlier work [41]. For SH + , with two attractive ion cores, a natural application of our earlier work leads to the following form of the K-matrix in second order:…”