Journal Article

FZJ-2025-02953

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Spin manipulation and nuclear polarization enhancement in particle beams with static magnetic fields

Kannis, C. (Corresponding author)FZJ* ; Engels, R. W.FZJ* ; El-Kordy, T.FZJ* ; Faatz, N.FZJ* ; Pütz, S. J.FZJ* ; Verhoeven, V. J.FZJ* ; Rakitzis, T. P.Extern* ; Büscher, M.FZJ*

2025
Inst. Woodbury, NY

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Please use a persistent id in citations: doi:10.1103/4nr6-xt7m  doi:10.34734/FZJ-2025-02953

Abstract: A theoretical study of spin dynamics in nonrelativistic particle beams with interacting angular momentatraversing static, spatially varying magnetic fields is presented. The computational framework evaluates sinu-soidal magnetic field configurations, calculating key observables such as average spin projections and statepopulations during the interaction. It is demonstrated that such fields can effectively enhance nuclear polarizationin partially, incoherently polarized hydrogen and deuterium atomic beams, as well as coherently rotationallystate-selected hydrogen deuteride molecular beams. This enhancement is attributed to transitions induced withinthe hyperfine regime of these systems. The study spans frequency ranges from gigahertz scales for atomsto hundreds of kilohertz for molecules, corresponding to magnetic field variations on spatial scales fromsubmillimeters to meters.

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Contributing Institute(s):

1. Experimentelle Hadrondynamik (IKP-2)
2. Elektronische Eigenschaften (PGI-6)

Research Program(s):

1. 612 - Cosmic Matter in the Laboratory (POF4-612) (POF4-612)
2. DFG project G:(GEPRIS)533904660 - Eine vielseitige Polarisationsmethode für Teilchen mit einfachen Hyperfeinstrukturen (533904660) (533904660)

Appears in the scientific report 2025

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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