BibTeX file of [Budewig22]
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@article{Budewig22,
author={Laura Budewig and Sang-Kil Son and Robin Santra},
title={Theoretical investigation of orbital alignment of x-ray-ionized atoms in exotic electronic configurations},
journal={Phys. Rev. A},
volume={105},
pages={033111},
year={2022},
keywords={HFS; orbital alignment; Ar; Ne; XATOM; CFEL; DESY;},
url={https://doi.org/10.1103/PhysRevA.105.033111},
doi={10.1103/PhysRevA.105.033111},
abstract={We theoretically study orbital alignment in x-ray-ionized atoms and ions, based on improved electronic-structure calculations starting from the Hartree-Fock-Slater model. We employ first-order many-body perturbation theory to improve the Hartree-Fock-Slater calculations and show that the use of first-order-corrected energies yields significantly better transition energies than originally obtained. The improved electronic-structure calculations enable us also to compute individual state-to-state cross sections and transition rates and, thus, to investigate orbital alignment induced by linearly polarized x rays. To explore the orbital alignment of transiently formed ions after photoionization, we discuss alignment parameters and ratios of individual state-resolved photoionization cross sections for initially neutral argon and two exotic electronic configurations that may be formed during x-ray multiphoton ionization dynamics induced by x-ray free-electron lasers. We also present how the orbital alignment is affected by Auger-Meitner decay and demonstrate how it evolves during a sequence of one photoionization and one Auger-Meitner decay. Our present work establishes a step toward investigation of orbital alignment in atomic ionization driven by high-intensity x rays.}
}
Laura Budewig, Sang-Kil Son, and Robin Santra, Theoretical investigation of orbital alignment of x-ray-ionized atoms in exotic electronic configurations, Phys. Rev. A 105, 033111 (2022)
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[abstract]
doi:10.1103/PhysRevA.105.033111
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