Two-photon ionization of the K-shell of ions of the isonuclear sequence of a heavy atom

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Main Authors: Hopersky, Alexey N., Nadolinsky, Alexey M., Novikov, Sergey A., Koneev, Rustam V.
Format: Preprint
Published: 2025
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author Hopersky, Alexey N.
Nadolinsky, Alexey M.
Novikov, Sergey A.
Koneev, Rustam V.
author_facet Hopersky, Alexey N.
Nadolinsky, Alexey M.
Novikov, Sergey A.
Koneev, Rustam V.
contents The shape and absolute values of the generalized cross-sections of the two-photon resonant single ionization of the K-shell of ions of the isonuclear sequence of a heavy nickel atom (28Ni - Ni26+ - Ni24+ - Ni18+) have been theoretically predicted. The complete wave functions of ionization states have been obtained in the single-configuration Hartree-Fock approximation. The effects of the occurrence of giant resonances in the subthreshold region of the generalized ionization cross-section and destructive quantum interference of the amplitudes of the probability of radiation transitions have been established. The leading role of the d-symmetry of the final state of ionization in determining the total generalized crosssection in the energy region of absorbed photons in the hard X-ray range has also been established.
format Preprint
id arxiv_https___arxiv_org_abs_2506_18117
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Two-photon ionization of the K-shell of ions of the isonuclear sequence of a heavy atom
Hopersky, Alexey N.
Nadolinsky, Alexey M.
Novikov, Sergey A.
Koneev, Rustam V.
Atomic Physics
00A81
The shape and absolute values of the generalized cross-sections of the two-photon resonant single ionization of the K-shell of ions of the isonuclear sequence of a heavy nickel atom (28Ni - Ni26+ - Ni24+ - Ni18+) have been theoretically predicted. The complete wave functions of ionization states have been obtained in the single-configuration Hartree-Fock approximation. The effects of the occurrence of giant resonances in the subthreshold region of the generalized ionization cross-section and destructive quantum interference of the amplitudes of the probability of radiation transitions have been established. The leading role of the d-symmetry of the final state of ionization in determining the total generalized crosssection in the energy region of absorbed photons in the hard X-ray range has also been established.
title Two-photon ionization of the K-shell of ions of the isonuclear sequence of a heavy atom
topic Atomic Physics
00A81
url https://arxiv.org/abs/2506.18117