M 1, E 2, and M 3 hyperfine structure and nuclear moment ratios for sup 151,153 Eu

Journal Article · Thu Aug 01 04:00:00 EDT 1991 · Physical Review A. General Physics; (United States)

DOI:https://doi.org/10.1103/PhysRevA.44.1523· OSTI ID:5310465

Childs, W J ^[1]

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1. Argonne National Laboratory, Argonne, IL (USA)

The atomic-beam laser-rf double-resonance technique has been used to obtain precise values for the hyperfine structure (hfs) splittings in ten 4{ital f}{sup 7}5{ital d}6{ital s} {sup 10}{ital D}{sub {ital J}} and {sup 8}{ital D}{sub {ital J}} levels of {sup 151,153}Eu I. Detailed studies of the second-order hfs lead to the isotopic ratios of the hfs constants, and reveal surprisingly strong hfs interactions between the two multiplets. The dipole ratios, when compared with the known ratio of the nuclear dipole moments, reveal striking {ital J}- and term-dependent hyperfine anomalies. The quadrupole ratios (after corrections for the second-order hfs) are consistent with the atomic ground-state value and self-consistent among the ten levels studied. The precision of the measurements allows evaluation of the ratio of the magnetic octupole hfs interaction constants between the two isotopes. The result, which is taken to be the ratio of the nuclear ground-state magnetic octupole moments {Omega}, is found to be {Omega}({sup 151}Eu)/{Omega}({sup 153}Eu)=0.87(6).

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5310465
• Journal Information: Physical Review A. General Physics; (United States), Journal Name: Physical Review A. General Physics; (United States) Vol. 44:3; ISSN 1050-2947; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ACCURACY
ATOMIC BEAMS
BEAMS
DATA
DOUBLE RESONANCE METHODS
E2-TRANSITIONS
ENERGY-LEVEL TRANSITIONS
EUROPIUM 151
EUROPIUM 153
EUROPIUM ISOTOPES
EXPERIMENTAL DATA
HYPERFINE STRUCTURE
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOTOPE EFFECTS
ISOTOPES
LASERS
M1-TRANSITIONS
M3-TRANSITIONS
MAGNETIC MOMENTS
MULTIPOLE TRANSITIONS
NUCLEAR MAGNETIC MOMENTS
NUCLEAR PROPERTIES
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
STABLE ISOTOPES