Coulomb excitation of hydrogen atoms by vortex ion beams

authored by: A. V. Maiorova, D. Karlovets, S. Fritzsche, A. Surzhykov, Th Stöhlker
Abstract: Coulomb excitation of hydrogen atoms by vortex protons is theoretically investigated within the framework of the non-relativistic first-Born approximation and the density matrix approach. Special attention is paid to the magnetic sublevel population of excited atoms and, consequently, to the angular distribution of the fluorescence radiation. We argue that both these properties are sensitive to the projection of the orbital angular momentum (OAM), carried by the projectile ions. In order to illustrate the OAM-effect, detailed calculations have been performed for the 1 s → 2 p excitation and the subsequent 2 p → 1 s radiative decay of a hydrogen target, interacting with incident Laguerre-Gaussian vortex protons. The calculation results suggest that Coulomb excitation can be employed for the diagnostics of vortex ion beam at accelerator and storage ring facilities.
External Organisation(s): GSI Helmholtz Centre for Heavy Ion Research
Helmholtz Institute Jena
Harbin Engineering University
Friedrich Schiller University Jena
National Metrology Institute of Germany (PTB)
Technische Universität Braunschweig
Laboratory for Emerging Nanometrology Braunschweig (LENA)
Type: Article
Journal: New journal of physics
Volume: 26
ISSN: 1367-2630
Publication date: 06.09.2024
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Physics and Astronomy(all)
Electronic version(s): https://doi.org/10.1088/1367-2630/ad73fd (Access: Open)

BibTeX

@article{33439e85c589472281e22dd005cb0643,
title = "Coulomb excitation of hydrogen atoms by vortex ion beams",
abstract = "Coulomb excitation of hydrogen atoms by vortex protons is theoretically investigated within the framework of the non-relativistic first-Born approximation and the density matrix approach. Special attention is paid to the magnetic sublevel population of excited atoms and, consequently, to the angular distribution of the fluorescence radiation. We argue that both these properties are sensitive to the projection of the orbital angular momentum (OAM), carried by the projectile ions. In order to illustrate the OAM-effect, detailed calculations have been performed for the 1 s → 2 p excitation and the subsequent 2 p → 1 s radiative decay of a hydrogen target, interacting with incident Laguerre-Gaussian vortex protons. The calculation results suggest that Coulomb excitation can be employed for the diagnostics of vortex ion beam at accelerator and storage ring facilities.",
keywords = "Coulomb excitation, diagnostics of vortex ion beam, twisted ions",
author = "Maiorova, {A. V.} and D. Karlovets and S. Fritzsche and A. Surzhykov and Th St{\"o}hlker",
note = "Publisher Copyright: {\textcopyright} 2024 The Author(s). Published by IOP Publishing Ltd on behalf of the Institute of Physics and Deutsche Physikalische Gesellschaft",
year = "2024",
month = sep,
day = "6",
doi = "10.1088/1367-2630/ad73fd",
language = "English",
volume = "26",
journal = "New journal of physics",
issn = "1367-2630",
publisher = "IOP Publishing Ltd.",
number = "9",
}