Improved binding energies for LiPs, e(+)Be, NaPs and e(+)Mg

James Mitroy, G. G. Ryzhikh

    Research output: Contribution to journalComment/debate

    Abstract

    The stochastic variational method and its fixed core variant are applied to the calculation of lithium positride (LiPs), positronic beryllium (e(+)Be), sodium positride (NaPs) and positronic magnesium (e(+)Mg). The revised binding energy of Lips was 0.012 341 Hartree, that for e(+)Be was 0.031 47 Hartree, that for NaPs was 0.008 419 Hartree and the binding energy for e(+)Mg was 0.015 612 Hartree. The binding energies for LiPs and e(+)Be are expected to be within 2% of the variational limit. The uncertainties in the NaPs and e(+)Mg binding energies are larger and these are expected to be within 10-15% of the variational limit.
    Original languageEnglish
    Pages (from-to)2001-2007
    JournalJournal of Physics B: Atomic, Molecular and Optical Physics
    Volume34
    Issue number10
    DOIs
    Publication statusPublished - 2001

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