Rearrangement of electron shells and interchannel interaction in the K photoabsorption of Ne

Autor:	Novikovskiy, N. M., Rezvan, D. V., Ivanov, N. M., Petrov, I. D., Lagutin, B. M., Knie, A., Ehresmann, A., Demekhin, Ph. V., Sukhorukov, V. L.
Rok vydání:	2021
Předmět:	Physics - Atomic Physics J.2
Zdroj:	Eur. Phys. J. D, (2019), 73: 22
Druh dokumentu:	Working Paper
DOI:	10.1140/epjd/e2018-90539-2
Popis:	A detailed theoretical analysis of the 1s photoionization of neon is presented. It is found that the most significant many-electron correlation in computing photoionization of inner shells is the rearrangement of the outer shells caused by the inner vacancy. Further noticeable effects are: (i) the polarization of the ion core by the outgoing photoelectron and (ii) the coherent effect of double excitation/ionization. The core polarization increases the photoionization cross section by about 10% at the 1s threshold, and the coherent excitation results in further increases by about 5%. Incoherent excitation of the satellite channel leads to an additional 10% increase in the photoabsorption cross section in the double-ionization threshold region. Comment: 6 pages, 3 figures, 22 bibliography
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2105.09706 Zobrazit plný text záznamu View this record from Arxiv