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dc.contributor.authorCohen, S.en
dc.contributor.authorCamus, P.en
dc.contributor.authorBolovinos, A.en
dc.date.accessioned2015-11-24T18:26:49Z-
dc.date.available2015-11-24T18:26:49Z-
dc.identifier.issn0953-4075-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/15962-
dc.rightsDefault Licence-
dc.subject3-body coulomb statesen
dc.subjectmultiphoton ionizationen
dc.subjectplanetary atomsen
dc.subjectelectronic correlationen
dc.subjectcore polarizationen
dc.subjectbariumen
dc.subjectspectroscopyen
dc.subjectfragmentationen
dc.subjectparametersen
dc.subjectradiationen
dc.titleInteracting asymmetric double Rydberg series: the Ba 8snl(l=5)+5f(j)n ' l ' caseen
heal.typejournalArticle-
heal.type.enJournal articleen
heal.type.elΆρθρο Περιοδικούel
heal.identifier.primaryDoi 10.1088/0953-4075/38/2/001-
heal.identifier.secondary<Go to ISI>://000227154000002-
heal.identifier.secondaryhttp://iopscience.iop.org/0953-4075/38/2/001/pdf/0953-4075_38_2_001.pdf-
heal.languageen-
heal.accesscampus-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιώνel
heal.publicationDate2005-
heal.abstractThe 8sn1 double Rydberg states of barium with l = 5 and n = 12-15 are populated by employing an isolated core excitation (ICE) scheme in conjunction with the Stark switching technique. The recorded spectra show strong configuration interaction with three adjacent 5fjn'l' series. One of the latter series is converging to the 5f(5/2) ionization limit and the other two to the higher lying 5f(7/2) one. A multichannel quantum defect theory (MQDT) analysis reveals the presence of low-lying members of double Rydberg series converging to higher ionization thresholds and determining the configuration mixing. At least two perturbers, affecting energy level positions, are identified while a comparison between experimental and fitted excitation profiles points towards the presence of a third one. Finally, theoretical calculations of the 8sn1(1 = 5) series members quantum defects demonstrate the onset of mutual penetration between the two excited electrons. Nevertheless, the most important quantum defect contributions stem from exchange and polarization effects and thus long-range interactions alone are insufficient for a proper description of the double Rydberg states involved.en
heal.journalNameJournal of Physics B-Atomic Molecular and Optical Physicsen
heal.journalTypepeer reviewed-
heal.fullTextAvailabilityTRUE-
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