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相关论文: Dissociative recombination of N$_2$H$^+$: A revisi…

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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…

化学物理 · 物理学 2020-02-05 Roman Čurík , Dávid Hvizdoš , Chris H. Greene

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…

原子与分子团簇 · 物理学 2025-09-09 Riyad Hassaine , Janos Zsolt Mezei , Dahbia Talbi , Jonathan Tennyson , Ioan F. Schneider

We present a simple two-dimensional model of the indirect dissociative recombination process. The model has one electronic and one nuclear degree of freedom and it can be solved to high precision, without making any physically motivated…

The LiH$^{+}$ molecule is prototypical of the indirect dissociative recombination (DR) process, in which a colliding electron destroys the molecule through Rydberg capture pathways. This Letter develops the first quantitative test of the…

化学物理 · 物理学 2016-08-17 R. Čurík , Chris H. Greene

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…

天体物理仪器与方法 · 物理学 2024-05-01 K. Chakrabarti , J. Zs Mezei , O. Motapon , A. Faure , O. Dulieu , K. Hassouni , I. F. Schneider

This work presents our theoretical study of the dissociative recombination (DR) of the closed-shell diatomic system CF$^+$ based on an approach recently applied to the CH$^+$ molecule. Our extended treatment uses the UK R-matrix theory and…

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.…

Cross sections and rate coefficients for the Dissociative Recombination (DR) of the NS+ ion induced by collisions with low-energy electrons are reported for temperatures between 10 and 1000 K, relevant to a large range of interstellar cloud…

天体物理仪器与方法 · 物理学 2024-03-08 R. Hassaine , F. Gauchet , F. Iacob , J. Zs Mezei , E. Roueff , J. Tennyson , I. F. Schneider

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…

原子物理 · 物理学 2022-03-30 M. D. Epée Epée , O. Motapon , N. Pop , F. Iacob , E. Roueff , I. F. Schneider , J. Zs Mezei

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 $0.2$…

天体物理仪器与方法 · 物理学 2022-03-08 J. Zs. Mezei , M. D. Epée Epée , O. Motapon , I. F. Schneider

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…

天体物理仪器与方法 · 物理学 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 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…

A numerically solvable two-dimensional (2D) model, employed by the authors to study the dissociative recombination of H$_2^+$ in the ungerade symmetry [Phys. Rev. A $\mathbf{98}$, 062706 (2018)], is extended to describe the collision…

化学物理 · 物理学 2025-11-26 Dávid Hvizdoš , Roman Čurík , Chris H. Greene

We have experimentally studied dissociative recombination (DR) of electronically and vibrationally relaxed ArH$^+$ in its lowest rotational levels, using an electron--ion merged-beams setup at the Cryogenic Storage Ring. We report…

We report on an energy-sensitive imaging detector for studying the fragmentation of polyatomic molecules in the dissociative recombination of fast molecular ions with electrons. The system is based on a large area (10 cm x 10 cm)…

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…

化学物理 · 物理学 2009-11-13 Daniel J. Haxton , Chris H. Greene

An alternative method is introduced to solve a simple two-dimensional models describing vibrational excitation and dissociation processes during the electron-molecule collisions. The model works with one electronic and one nuclear degree of…

化学物理 · 物理学 2018-12-19 Roman Čurík , Dávid Hvizdoš , Chris H. Greene

The cross section for dissociative recombination of BeH^+ is calculated by solution of the time-dependent Schrodinger equation in the local complex potential approximation. The effects of couplings between resonant states and the Rydberg…

原子物理 · 物理学 2009-04-02 J. B. Roos , M. Larsson , AA. Larson , A. E Orel

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…

星系天体物理 · 物理学 2018-08-21 A. Abdoulanziz , F. Colboc , D. A. Little , Y. Moulane , J. Zs. Mezei , E. Roueff , J. Tennyson , I. F. Schneider , V. Laporta

We have investigated dissociative recombination (DR) of NH$^+$ with electrons using a merged beams configuration at the TSR heavy-ion storage ring located at the Max Planck Institute for Nuclear Physics in Heidelberg, Germany. We present…

天体物理仪器与方法 · 物理学 2014-08-28 O. Novotný , M. Berg , D. Bing , H. Buhr , W. Geppert , M. Grieser , F. Grussie , C. Krantz , M. B. Mendes , C. Nordhorn , R. Repnow , D. Schwalm , B. Yang , A. Wolf , D. W. Savin
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