Theoretical interpretation of the Nd II spectrum: odd parity energy levels
作者： Jean-François Wyart
DOI: 10.1088/0031-8949/82/03/035302
关键词: Isotope 、 Mean squared error 、 Free parameter 、 Atomic physics 、 Neodymium 、 Parity bit 、 Physics 、 Ab initio 、 Parametric statistics 、 Ionization
摘要: The energy levels of singly ionized neodymium (Nd II) are interpreted following the Racah–Slater parametric method, by using Cowan computer codes. Radial parameters obtained in a least-squares fit compared with Hartree–Fock (HFR) ab initio integrals. In odd parity, 596 mixed configurations 4f35d6s, 4f35d2, 4f36s2, 4f46p and 4f5 used to determine 39 free parameters, 51 other being constrained. mean error is 53 cm- 1. configuration sharing supported experimental isotope shifts 144Nd–150Nd.
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