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BibTeX file of [Budewig22] [show it without abstract]

@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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