Electron affinities and hyperfine structure for U{sup {minus}} and U I obtained from relativistic configuration-interaction calculations

Journal Article · Sun Oct 01 04:00:00 EDT 1995 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.52.2632· OSTI ID:118440

Dinov, K D; Beck, D R ^[1]

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1. Physics Department, Michigan Technological University, Houghton, Michigan 49931 (United States)

Valence-shell relativistic configuration-interaction calculations predict one U{sup {minus}} bound state, viz., 5{ital f}{sup 3}6{ital d}7{ital s}{sup 2}7{ital p} {ital J}=13/2, with an electron affinity of 0.175 eV. We found no other {ital J}`s for this configuration to be bound, nor are any 5{ital f}{sup 3}6{ital d}{sup 2}7{ital s}{sup 2} levels expected to be bound. Attachment of a 5{ital f} electron is even more unlikely. The hyperfine structure (hfs) constants for the {sup 235}U{sup {minus}} state, in MHz, are, respectively, {ital A},{ital B}={minus}72.4,2644. Although core polarization effects are absent, the valence hfs results for {sup 235}U I are in generally good agreement with experiment and represent a modest improvement compared to existing semiempirical values. An {ital LS} analysis is provided for the bound state.

• DOE Contract Number: FG02-92ER14282
• OSTI ID: 118440
• Journal Information: Physical Review A, Journal Name: Physical Review A Journal Issue: 4 Vol. 52; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
AFFINITY
CONFIGURATION INTERACTION
D STATES
F STATES
HYPERFINE STRUCTURE
P STATES
S STATES
URANIUM
URANIUM IONS
VALENCE