Rotational transitions induced by collisions of HD${}^{+}$ ions with low energy electrons

Abstract

A series of Multichannel Quantum Defect Theory-based computations have been performed, in order to produce the cross sections of rotational transitions (excitations $N_i^{+}-2\to$ $N_i^{+}$, de-excitations $N_i^{+}$ $\to$ $N_i^{+}-2$, with $N_i^{+}=2$ to $10$) and of their competitive process, the dissociative recombination, induced by collisions of HD${}^{+}$ ions with electrons in the energy range $10^{-5}$ to 0.3 eV. Maxwell anisotropic rate coefficients, obtained from these cross sections in the conditions of the Heidelberg Test Storage Ring (TSR) experiments ($k_B{T}_t=2.8$ meV and $k_B{T}_l=45$ $\mu$eV), have been reported for those processes in the same electronic energy range. Maxwell isotropic rate coefficients have been as well presented for electronic temperatures up to a few hundreds of Kelvins. Very good overall agreement is found between our results for rotational transitions and the former theoretical computations as well as with experiment. Furthermore, owing to the full rotational computations performed, the accuracy of the resulting dissociative recombination cross sections is considerably improved.

9 pages, 8 figures, 1 table. arXiv admin note: text overlap with arXiv:1107.5267

References in corpus (2)

• Vibrational level population of H${}_2$ and H${}_2^{+}$ in the early Universe
• Near threshold rotational excitation of molecular ions by electron-impact

Cited by in corpus (9)

• Low-energy electron impact dissociative recombination and vibrational transitions of N${}_2^{+}$
• A theoretical study of the dissociative recombination of SH${}^{+}$ with electrons through the ${}^2\Pi$ states of SH
• Dissociative recombination and vibrational excitation of BF${}^{+}$ in low energy electron collisions
• Electron-induced excitation, recombination and dissociation of molecular ions initiating the formation of complex organic molecules
• Reactive collisions between electrons and BeT${}^{+}$: Complete set of thermal rate coefficients up to 5000 K
• Dissociative recombination of CH${}^{+}$ molecular ion induced by very low energy electrons
• Dissociative recombination and rotational transitions of D${}_2^{+}$ in collisions with slow electrons
• Competing Ionization and Dissociation in the H${}_2$ Gerade System
• Dissociative recombination of N${}_2$H${}^{+}$: A revisited study