Relativistic multireference manybody perturbation theory calculations on ions of the phosphorus isoelectronic sequence
Abstract
Term energies of the ground and excited states arising from the 3s^{2}3p^{3}, 3s3p^{4}, 3s^{2}3p^{2}3d and 3s3p^{3}3d configurations in ions of the phosphorus isoelectronic sequence (Z = 2632) are evaluated in relativistic multireference manybody perturbation theory calculations. Theory deviates from experiment on the order of 0.01% for the majority of the experimentally identified levels. The term energies of the 12 hitherto unidentified 3s^{2}3p^{2}3d levels are determined with 0.01% accuracy. Theoretical photon wavelengths of the electricdipole (E1) decays from the 3s^{2}3p^{2}3d and 3s3p^{3}3d levels are compared with laboratory and solar lines to critically evaluate previous line identifications. A number of new solar line identifications are given on the basis of theoretical wavelengths and transition probabilities. Theoretical lifetimes of 39 levels arising from the 3s3p^{4}, 3s^{2}3p^{2}3d and 3s3p^{3}3d configurations are evaluated. For the 3s^{2}3p^{2}3d ^{4}F_{7/2}, ^{4}D_{7/2} and ^{4}G_{7/2} levels in Fe XII, Co XIII and Ni XIV, theoretical lifetimes exhibit significant deviation from those obtained in a recent fastbeam spectroscopy experiment.
 Publication:

Journal of Physics B Atomic Molecular Physics
 Pub Date:
 December 2004
 DOI:
 10.1088/09534075/37/24/004
 Bibcode:
 2004JPhB...37.4763V