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Related papers: Dissociative recombination of BeH^+

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The cross section for resonant ion-pair formation in the collision of low-energy electrons with HF^+ is calculated by the solution of the time-dependent Schrodinger equation with multiple coupled states using a wave packet method. A…

Atomic Physics · Physics 2015-05-13 J. B. Roos , A. E. Orel , AA. Larson

A quantitative theoretical study of the dissociative recombination of SH$^+$ with electrons has been carried out. Multireference, configuration interaction calculations were used to determine accurate potential energy curves for SH$^+$ and…

Instrumentation and Methods for Astrophysics · Physics 2024-05-31 D. O. Kashinski , D. Talbi , A. P. Hickman , O. E. Di Nallo , F. Colboc , K. Chakrabarti , I. F. Schneider , J. Zs Mezei

The latest molecular data - potential energy curves and Rydberg$/$valence interactions - characterizing the super-excited electronic states of CO are reviewed, in order to provide inputs for the study of their fragmentation dynamics.…

We used the multichannel quantum defect theory to compute cross sections and rate coefficients for the dissociative recombination of CH$^+$ initially in its lowest vibrational level $v_i^+ = 0$ with electrons of incident energy bellow $0.2$…

Instrumentation and Methods for Astrophysics · Physics 2022-03-08 J. Zs. Mezei , M. D. Epée Epée , O. Motapon , I. F. Schneider

Our previous studies of dissociative recombination, and vibrational excitation/de-excitation of the BeH$^+$ ion, based on the multichannel quantum defect theory, are extended to collision energies above the dissociation threshold, taking…

Theoretical investigation of the dissociative recombination (DR) of NeH+ with low-energy electrons in the regime where the process occurs without direct potential energy curve crossings is presented. The calculations are performed using…

Atomic and Molecular Clusters · Physics 2025-09-09 Riyad Hassaine , Janos Zsolt Mezei , Dahbia Talbi , Jonathan Tennyson , Ioan F. Schneider

The reactive collisions of the CH$^+$ molecular ion with electrons is studied in the framework of the multichannel quantum defect theory, taking into account the contribution of the core-excited Rydberg states. In addition to the…

Instrumentation and Methods for Astrophysics · Physics 2024-05-01 K. Chakrabarti , J. Zs Mezei , O. Motapon , A. Faure , O. Dulieu , K. Hassouni , I. F. Schneider

Cross sections are presented for dissociative recombination and electron-impact vibrational excitation of the ArH+ molecular ion at electron energies appropriate for the interstellar environment. The R-matrix method is employed to determine…

Astrophysics of Galaxies · Physics 2018-08-21 A. Abdoulanziz , F. Colboc , D. A. Little , Y. Moulane , J. Zs. Mezei , E. Roueff , J. Tennyson , I. F. Schneider , V. Laporta

Total and partial cross sections for breakup of ground rovibronic state of H$_2^+$by photon impact are calculated using the exact nonadiabatic nonrelativistic Hamiltonian without approximation. The converged results span six orders of…

Chemical Physics · Physics 2013-08-09 Daniel J. Haxton

Rate coefficients for dissociative recombination and state-to-state rotational transitions of the D$_{2}^{+}$ ion induced by collisions with very low-energy electrons have been reported following our previous studies on HD$^{+}$ and…

Atomic Physics · Physics 2022-03-30 M. D. Epée Epée , O. Motapon , N. Pop , F. Iacob , E. Roueff , I. F. Schneider , J. Zs Mezei

Direct dissociative recombination and resonant ion-pair formation reactions of $\mathrm{HeH^+}$ are theoretically studied using time-dependant wave-packets methods. The wave packets are propagated on potential energy curves that are in…

Chemical Physics · Physics 2023-01-11 Sifiso M. Nkambule , Malibongwe Tsabedze , Oscar N. Mabuza , Mbuso K. Matfunjwa

The latest molecular data - potential energy curves and Rydberg-valence interactions - characterising the super-excited electronic states of BF are reviewed in order to provide the input for the study of their fragmentation dynamics.…

The theoretical approach developed here treats uniformly the direct and indirect mechanisms of dissociative recombination (DR) in a diatomic ion. The present theory is based on electron scattering calculations performed at several…

The collision-energy resolved rate coefficient for dissociative recombination of HD+ ions in the vibrational ground state is measured using the photocathode electron target at the heavy-ion storage ring TSR. Rydberg resonances associated…

The HeH$^+$ cation undergoes dissociative recombination with a free electron to produce neutral He and H fragments. We present calculations using ab initio quantum defects and Fano's rovibrational frame transformation technique, along with…

Chemical Physics · Physics 2009-11-13 Daniel J. Haxton , Chris H. Greene

We present the results of calculations determining the cross sections for indirect dissociative recombination of LiH$_2^+$ + $e^-$. These calculations employ multichannel quantum defect theory and Fano's rovibrational frame transformation…

Chemical Physics · Physics 2009-11-13 Daniel J. Haxton , Chris H. Greene

The article presents an improved theoretical description of dissociative recombination of HCO$^+$ and DCO$^+$ ions with a low energy electron. In the previous theoretical study (Phys. Rev. A {\bf 74}, 032707) on HCO$^+$, the vibrational…

Chemical Physics · Physics 2009-11-13 Nicolas Douguet , Viatcheslav Kokoouline , Chris H. Greene

The HeH$^+$ cation is the simplest molecular prototype of the indirect dissociative recombination (DR) process that proceeds through electron capture into Rydberg states of the corresponding neutral molecule. This Letter develops the first…

Chemical Physics · Physics 2020-02-05 Roman Čurík , Dávid Hvizdoš , Chris H. Greene

Electron-impact cross sections for the dissociation process of vibrationally excited He2+ molecular ion, as a function of the incident electron energy are calculated for the dissociative transition X2\Sigma+u \to A2\Sigma+g by using the…

Plasma Physics · Physics 2015-06-29 R. Celiberto , K. L. Baluja , R. K. Janev , V. Laporta

Joint electron-ion energy spectra for the dissociative ionization of a model H$_2^+$ in few-cycle, infrared laser pulses are calculated via the numerical ab initio solution of the time-dependent Schr\"odinger equation. A strong,…

Atomic Physics · Physics 2017-11-21 V. Mosert , D. Bauer
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