Angular distribution of the fluorescence of helium doubly photo- excited states converging on the He+(N=2) ionization threshold (Articolo in rivista)

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Label
  • Angular distribution of the fluorescence of helium doubly photo- excited states converging on the He+(N=2) ionization threshold (Articolo in rivista) (literal)
Anno
  • 2003-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1088/0953-4075/36/21/013 (literal)
Alternative label
  • Lambourne JG; Penent F; Lablanquie P; Hall RI; Ahmad M; Zitnik M; Bucar K; Hammond P; Stranges S; Richter R; Alagia M; Coreno M (2003)
    Angular distribution of the fluorescence of helium doubly photo- excited states converging on the He+(N=2) ionization threshold
    in Journal of physics. B, Atomic molecular and optical physics (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Lambourne JG; Penent F; Lablanquie P; Hall RI; Ahmad M; Zitnik M; Bucar K; Hammond P; Stranges S; Richter R; Alagia M; Coreno M (literal)
Pagina inizio
  • 4351 (literal)
Pagina fine
  • 4359 (literal)
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  • 36 (literal)
Rivista
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  • Pubblicazione scientifica (literal)
Note
  • ISI Web of Science (WOS) (literal)
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  • Laboratoire de Dynamique des Ions, Atomes et Molécules, Université Pierre et Marie Curie, 75252 Paris Cedex 05, France LURE, Centre Universitaire Paris-Sud, Bâtiment 209D, BP 34, 91898 Orsay, France J Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia Centre for Atomic, Molecular and Surface Physics, University of Western Australia, Crawley, Perth, WA 6009, Australia Dipartimento di Chimica, Università di Roma La Sapienza, 00185 Rome, Italy Sincrotrone Trieste, I-34012 Trieste, Italy IMIP-CNR, c/o Gas Phase Beamline, Laboratorio Elettra, I-34012 Trieste, Italy INFM Unità Laboratorio TASC, Area Science Park, I-34012 Trieste, Italy (literal)
Titolo
  • Angular distribution of the fluorescence of helium doubly photo- excited states converging on the He+(N=2) ionization threshold (literal)
Abstract
  • The asymmetry parameter P for fluorescence photons emitted during the radiative decay of the sp2,n+(P-1(o)), sp2,n-(P-1(o)), 2pnd(P-1(o)) and 2pnd(D-3(o)) series of helium doubly excited states, formed by the absorption of linearly polarized synchrotron radiation, has been measured. The results are compared with recent theoretical calculations (Zitnik et al 2002 Phys. Rev. A 65 032520). At high n the beta parameter is shown to increase and oscillate due to the excitation of triplet states, optically accessible from the helium ground state due to spin-orbit effects. (literal)
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