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Multiply differential study of detachment with simultaneous target excitation in anion-atom collisions

M. Schulz1,2, F. Herrmann1, W. Zhang1, D. V. Chicharro1, A. Dorn1, M. Grieser1, F. Grussie1, H. Kreckel1, O. Novotny1 et al.

F. Trost1, A. Wolf1, T. Pfeifer1, C. D. Schröter1, and R. Moshammer1

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Phys. Rev. A 112, 032803 – Published 9 September, 2025

DOI: https://doi.org/10.1103/vn2k-87xq

Abstract

We have measured momenta of electrons and recoil ions in triple coincidence with neutralized projectiles for slow collisions between various anions and target atoms. From the data we extracted triple differential momentum and angular distributions of electrons ejected in detachment, in detachment with simultaneous target ionization (DI), and in detachment with simultaneous target excitation (DE). The DI rates relative to the DE rates depend sensitively on the projectile speed and on the properties of the target.

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Phys. Rev. A 112, 032803– Published 9 September, 2025
  • Received 16 April 2025
  • Accepted 22 August 2025
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Open access publication funded by Max Planck Society.

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