Molecular Fragmentation by Slow Highly Charged Ion Impact

Abstract

An experimental and theoretical study is presented for fragmentation of D2 after double-electron removal by slow (1-20 kV) highly charged ion impact (Xe10+/19+ and O5+/6+). As the ratio of the charge state to speed of the incoming ion increases, the D+ fragment energies deviate significantly from those found for isolated-molecule Franck-Condon transitions between states of D2. Both higher and lower fragment energies are observed, in accordance with predictions based on a Classical Trajectory Monte Carlo model. These energies result from the collisional momentum transfer to the center of mass of the molecule combined with the normal two-body breakup of D+ + D+. At the lowest energies, theory predicts a deviation from this vector addition picture due to the high field of the slow projectile.

Department(s)

Physics

International Standard Serial Number (ISSN)

0295-5075

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 IOP Publishing; European Physical Society; Società Italiana di Fisica; EDP Sciences; EPL Association, All rights reserved.

Publication Date

01 Jan 2000

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