Phys. Rev. A 75, 032510 (2007) [4 pages]Core-level electron spectroscopy on the sodium dimer Na 2p levelReceived 20 December 2006; published 19 March 2007 The lifetime broadening and molecular field splitting of the sodium dimer 2p core level is studied by x-ray photoelectron spectroscopy and by Auger electron spectroscopy. The lifetime of the Na 2p core hole has been determined to be 15±8 fs, much shorter than what has previously been reported for solid sodium. The molecular field splitting of this core level has been determined to be 42±10 meV. The Auger measurements have experimentally confirmed that the sodium dimer is a good example of when the Coulomb explosion mechanism determines the spectral shape. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.75.032510
DOI:
10.1103/PhysRevA.75.032510
PACS:
33.15.Pw, 33.15.Ry, 33.60.Fy, 33.80.Eh
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