Dissociative recombination of N${}_2$H${}^{+}$: A revisited study

Abstract

Dissociative recombination of N${}_2$H${}^{+}$ is explored in a two-step theoretical study. In a first step, a diatomic (1D) rough model with frozen NN bond and frozen angles is adopted, in the framework of the multichannel quantum defect theory (MQDT). The importance of the indirect mechanism and of the bending mode is revealed, in spite of the disagreement between our cross section and the experimental one. In a second step, we use our recently elaborated 3D approach based on the normal mode approximation combined with R-matrix theory and MQDT. This approach results in satisfactory agreement with storage-ring measurements, significantly better at very low energy than the former calculations.

9 pages, 5 figures, 1 table

References in corpus (6)

• Rotational transitions induced by collisions of HD${}^{+}$ ions with low energy electrons
• Low-energy electron impact dissociative recombination and vibrational transitions of N${}_2^{+}$
• Dissociative recombination of cold HeH${}^{+}$ ions
• Theoretical study of dissociative recombination and vibrational excitation of the BF${}_2^{+}$ ion by an electron impact
• Electron-induced excitation, recombination and dissociation of molecular ions initiating the formation of complex organic molecules
• Dissociative recombination and rotational transitions of D${}_2^{+}$ in collisions with slow electrons