High-accuracy Complete Active Space multiconfiguration Dirac-Hartree-Fock calculations of hyperfine structure constants of the gold atom

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dc.creatorBierón, Jacek
dc.creatorFischer, Charlotte Froese
dc.creatorIndelicato, Paul
dc.creatorJönsson, Per
dc.creatorPyykkö, Pekka
dc.date2009-02-25
dc.date2009-04-07
dc.date.accessioned2026-07-07T13:10:55Z
dc.date.available2026-07-07T13:10:55Z
dc.descriptionThe multiconfiguration Dirac-Hartree-Fock (MCDHF) model has been employed to calculate the expectation values for the hyperfine splittings of the 5d96s2 2D3/2 and 5d96s2 2D5/2 levels of atomic gold. One-, two-, and three-body electron correlation effects involving all 79 electrons have been included in a systematic manner. The approximation employed in this study is equivalent to a Complete Active Space (CAS) approach. Calculated electric field gradients, together with experimental values of the electric quadrupole hyperfine structure constants, allow us to extract a nuclear electric quadrupole moment Q(197Au)=521.5(5.0) mb.
dc.identifierhttps://arxiv.org/abs/0902.4307
dc.identifierhttp://arxiv.org/abs/0902.4307
dc.identifierPhysical Review A: Atomic, Molecular and Optical Physics 79, 5 (2010) 052502
dc.identifierdoi:10.1103/PhysRevA.79.052502
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/229134
dc.subjectAtomic Physics
dc.titleHigh-accuracy Complete Active Space multiconfiguration Dirac-Hartree-Fock calculations of hyperfine structure constants of the gold atom
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