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Related papers: Interatomic Coulombic Decay as a New Source of Low…

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We investigate the contribution of Interatomic Coulombic Decay induced by ion impact in neon and argon dimers (Ne$_2$ and Ar$_2$) to the production of low energy electrons. Our experiments cover a broad range of perturbation strengths and…

Electron removal in collisions of alpha particles with neon dimers is studied using an independent-atom-independent-electron model based on the semiclassical approximation of heavy-particle collision physics. The dimer is assumed to be…

Atomic Physics · Physics 2022-07-06 Tom Kirchner

We report on electron removal calculations for 2.81 keV/amu Li$^{3+}$ and O$^{3+}$ ion collisions with neon dimers. The target is described as two independent neon atoms fixed at the dimer's equilibrium bond length, whose electrons are…

Atomic and Molecular Clusters · Physics 2021-01-04 Dyuman Bhattacharya , Tom Kirchner

To exploit the high intensity of laser radiation, we propose to select frequencies at which single-photon absorption is of too low energy and two or more photons are needed to produce states of an atom that can undergo interatomic Coulombic…

Atomic and Molecular Clusters · Physics 2012-01-04 Philipp V. Demekhin , Spas D. Stoychev , Alexander I. Kuleff , Lorenz S. Cederbaum

In the process of interatomic Coulombic electron capture, an incident free electron is captured at an atomic center $A$ and the transition energy is transferred radiationlessly over a rather large distance to a neighboring atom $B$ of…

Atomic Physics · Physics 2024-09-10 L. M. Ellerbrock , A. B. Voitkiv , C. Müller

We implement an independent-atom and independent-electron model to investigate the collision systems of He$^{2+}$ and He$^{+}$ ion projectiles impinging on a neon dimer target. The dimer is set to be stationary at its equilibrium bond…

Atomic and Molecular Clusters · Physics 2025-05-13 Darij Starko , Tom Kirchner

Electron capture processes for low energy Ar9+ ions colliding on Ar2 dimer targets are investigated, focusing attention on charge sharing as a function of molecule orientation and impact parameter. A preference in charge-asymmetric…

We identified interatomic Coulombic decay (ICD) channels in argon dimers after spectator-type resonant Auger decay $2p^{-1}~3d \to 3p^{-2}3d, 4d$ in one of the atoms, using momentum resolved electron-ion-ion coincidence. The results…

Chemical Physics · Physics 2015-06-15 M. Kimura , H. Fukuzawa , K. Sakai , S. Mondal , E. Kukk , Y. Kono , S. Nagaoka , Y. Tamenori , N. Saito , K. Ueda

The electron removal and excitation channels in argon dimer target and helium ion projectile collision systems that facilitate interatomic Coulombic decay (ICD) are investigated. We implement an independent-atom and independent-electron…

Atomic and Molecular Clusters · Physics 2026-03-25 Darij Starko , Tom Kirchner

In interatomic Coulombic electron capture, the capture of a free electron at an atomic center is accompanied by the radiationless transfer of the excess energy to a neighboring atom of different species, leading to ionization of the latter.…

Atomic Physics · Physics 2023-04-19 S. Remme , A. B. Voitkiv , C. Müller

As a fundamental process in atomic physics, charge exchange relies on quantum state-resolved data that is crucial for various fields such as astrophysics and plasma physics. However, there remains a g in the research on multi-electron…

We discuss the effects of electron capture by the projectile and the Coulomb explosion of a molecular projectile on the electron screening in low energy nuclear reactions in laboratory. Using the idea of equilibrium charge, we show that the…

Nuclear Theory · Physics 2007-05-23 Y. Kato , N. Takigawa

The Cold-target recoil-ion momentum spectroscopy (COLTRIMS) has been employed to study the single-electron capture processes in collisions of N3+ ions with He atoms at an impact energy of 30 keV. The relative differential cross sections for…

Atomic Physics · Physics 2019-05-16 J. W. Xua , X. L. Zhu , W. T. Feng , D. M. Zhao , D. L. Guo , Y. Gao , S. F. Zhang , X Ma

Radiative double electron capture (RDEC), the one-step process occurring in ion-atom collisions, has been investigated for bare fluorine ions colliding with carbon. RDEC is completed when two target electrons are captured to a bound state…

Atomic Physics · Physics 2016-10-14 Tamer Elkafrawy , Anna Simon , John A. Tanis , Andrzej Warczak

We report on the experimental observation of interatomic Coulombic decay (ICD) in pure $^4$He nanoclusters of mean sizes between $N \approx$ 5000 and 30000 and the subsequent scattering of energetic He$^+$ fragments inside the neutral…

Interatomic Coulombic decay (ICD) is induced in helium (He) nanodroplets by photoexciting the n=2 excited state of He^+ using XUV synchrotron radiation. By recording multiple coincidence electron and ion images we find that ICD occurs in…

Atomic and Molecular Clusters · Physics 2017-07-24 M. Shcherbinin , A. C. LaForge , V. Sharma , M. Devetta , R. Richter , R. Moshammer , T. Pfeifer , M. Mudrich

Interatomic Coulombic Electron Capture (ICEC) is an environment-mediated process in which a free electron attaches to a species by transferring excess energy to a neighbor. While previous theoretical investigations assumed fixed nuclei,…

Using synchrotron radiation we simultaneously ionize and excite one helium atom of a helium dimer (He_2) in a shakeup process. The populated states of the dimer ion (i.e. He^[*+](n = 2; 3)-He) are found to deexcite via interatomic coulombic…

Atoms and molecules attached to rare gas clusters are ionized by an interatomic autoionization process traditionally termed 'Penning ionization' when the host cluster is resonantly excited. Here we analyze this process in the light of the…

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