Electron Capture in Collisions of Slow Highly Charged Ions with an Atom and a Molecule: Processes and Fragmentation Dynamics

International Journal of Molecular Sciences

François Frémont¹  Guillaume Laurent¹  Jimmy Rangama¹  Przemyslaw Sobocinski¹  Medhi Tarisien¹  Lamri Adoui¹  Amine Cassimi¹  Jean-Yves Chesnel¹  Xavier Flຜhard¹  Dominiquer Hennecart¹ 

[1] Centre Interdisciplinaire de Recherche Ions Lasers, Unité Mixte CEA-CNRS-ISMRA-Université de Caen Basse Normandie, 6 Bd du Maréchal Juin, F-14050 Caen Cedex, France Tel.: [phone], Fax: [phone], E-mail

关键词: Electron capture;    highly charged ions;    neutral target;    electron-electron interaction;    molecular fragmentation;   

DOI  :  10.3390/i3030115

来源: mdpi

【 摘 要 】

Processes involved in slow collisions between highly charged ions (HCI) and neutral targets are presented. First, the mechanisms responsible for double electron capture are discussed. We show that, while the electron-nucleus interaction is expected to be dominant at projectile velocities of about 0.5 a.u., the electron-electron interaction plays a decisive role during the collision and gains importance when the projectile velocity decreases. This interaction has also to be invoked in the capture of core electrons by HCI. Finally, the molecular fragmentation of H₂ following the impact of HCI is studied.

【 授权许可】

Unknown   
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