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- Forschungszentrum JülichDE94 papers
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7 papers · 2 filters
Resonantly enhanced interatomic Coulombic electron capture in a system of three atoms
S. Remme, A. B. Voitkiv, C. Müller
In interatomic Coulombic electron capture, the capture of a free electron at an atomic center is accompanied by the radiationless transfer of the excess energy to a neighboring ato…
Relativistic strong-field ionization of hydrogen-like atomic systems in constant crossed electromagnetic fields
A. Eckey, M. Klaiber, A. B. Voitkiv +1
Relativistic strong-field ionization of hydrogen-like atoms or ions in a constant crossed electromagnetic field is studied. The transition amplitude is formulated within the strong…
Search for ultralight dark matter with spectroscopy of radio-frequency atomic transitions
Xue Zhang, Abhishek Banerjee, Mahapan Leyser +4
The effects of scalar and pseudoscalar ultralight bosonic dark matter (UBDM) were searched for by comparing the frequency of a quartz oscillator to that of a hyperfine-structure tr…
Intercombination line photoassociation spectroscopy of RbYb
Tobias Franzen, Bastian Pollklesener, Christian Sillus +1
We report on the first observation of photoassociation near the -asymptote in a mixture of Rb and Yb. In a search spanning binding e…
Trap-loss spectroscopy of Rydberg states in ytterbium
Christian Halter, Alexander Miethke, Christian Sillus +2
We present an experimental study of the Rydberg - and - series of ytterbium for principal quantum numbers in the range of to . The study is performed using…
Fragmentation of the He dimer by relativistic highly charged projectiles in collisions with small kinetic energy release
B. Najjari, S. F. Zhang, X. Ma +1
We study theoretically the fragmentation of the helium dimer, He, into singly charged ions in collisions with relativistic highly-charged projectiles. We discuss the main m…