Investigation of valence inter-multiplet Auger transitions in Ne following 1s photoelectron recaptureстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:We employ a novel technique in which highly excited Rydberg states of Ne+ 2p(4n)p are populated via PCI-induced recapture of the near-threshold 1s photoelectron (De Fanis et al 2004 Phys. Rev. A 70 040702) to investigate valence inter-multiplet Auger transitions. The following series of the transitions have been observed: Ne+ 2p(4)(D-1)np(2) L -> Ne2+ 2p(4) P-3(J), Ne+ 2p(4)(S-1)np(2)P -> Ne2+ 2p(4) P-3(J) and Ne+ 2p(4)(S-1)np P-2 -> Ne2+ 2p(4) P-3(J). Their energy positions, quantum defects and the anisotropy parameters of the Auger electron emission have been determined. Experimental results are in good agreement with multi-configuration Dirac-Fock calculations carried out as a part of this study. The importance of interference effects for decays via naturally overlapping fine-structure components of the intermediate state is discussed.