Electron affinity of Pa by 7p attachment and hyperfine structure constants for [Formula Presented]

Document Type

Article

Publication Date

1-1-1996

Abstract

Valence shell relativistic configuration interaction calculations for the 7p attachment to the Pa I ground state yield one bound state, viz., [Formula Presented] 5[Formula Presented]6d7[Formula Presented]7p J=6, with electron affinity of 0.222 eV. We found no other J’s for this configuration to be bound, nor are any of the [Formula Presented] 5[Formula Presented]6[Formula Presented]7[Formula Presented] levels expected to be bound. The hyperfine structure constants for the [Formula Presented] bound state are A=741.3 MHz and B=1309 MHz. Although the core-valence correlation effects are absent the agreement between the theory (4736 [Formula Presented]) and experiment (4121 [Formula Presented]) for the position of the first excited state of Pa is good (15%). We review our previous studies for the np attachment in rare earths to systematically analyze the binding of [Formula Presented] and [Formula Presented] electrons, in these species. © 1996 The American Physical Society.

Publication Title

Physical Review A - Atomic, Molecular, and Optical Physics

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