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



Details zur Publikation
Autor(inn)en:
Novikovskiy, N.; Rezvan, D.; Ivanov, N.; Petrov, I.; Lagutin, B.; Knie, A.; Ehresmann, A.; Demekhin, P.; Sukhorukov, V.
Publikationsjahr:
2019
Zeitschrift:
The European Physical Journal D
Seitenbereich:
29
Jahrgang/Band:
73
Heftnummer:
2
Sprachen:
Englisch

Zusammenfassung, Abstract

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. 


Zuletzt aktualisiert 2019-08-03 um 15:23