Many-body effects in hyperfine interactions in 205Pb+
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Ab initio calculations have been carried out to study the magnetic dipole and electric quadrupole hyperfine structure constants of 205Pb+. Many-body effects have been considered to all orders using the relativistic coupled-cluster theory in the singles, doubles and partial triples approximation. The trends of these effects are found to be different from atomic systems that have been studied earlier.
PACS.31.10.+z Theory of electronic structure, electronic transitions, and chemical binding 31.15.Ar Ab initio calculations 31.15.Dv Coupled-cluster theory 31.30.Gs Hyperfine interactions and isotope effects, Jahn-Teller effect
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