Observation of Hyperfine Mixing in Measurements of a Magnetic OctupoleDecay in Isotopically Pure Nickel-Like {sup 129}Xe and {sup 132}Xe Ions

Journal Article · Fri Jun 29 00:00:00 EDT 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.98.263001· OSTI ID:20953369

Traebert, E; Beiersdorfer, P; Brown, G V ^[1]

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1. High Temperature and Astrophysics Division, Lawrence LivermoreNational Laboratory, Livermore, California 94550-9234 (United States)

We present measurements of high statistical significance of the rate ofthe magnetic octupole (M3) decay in nickel-like ions of isotopically pure {sup 129}Xe and {sup 132}Xe. On {sup 132}Xe, an isotopewith zero nuclear spin and therefore without hyperfine structure, the lifetimeof the metastable level was established as (15.06{+-}0.24) ms. On {sup 129}Xe, an additionalfast (2.7{+-}0.1 ms) decay component was established that representshyperfine mixing with a level that decays by electric quadrupole (E2) radiation.

• OSTI ID: 20953369
• Journal Information: Physical Review Letters, Vol. 98, Issue 26; Other Information: DOI: 10.1103/PhysRevLett.98.263001; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
HYPERFINE STRUCTURE
NUCLEAR DECAY
OCTUPOLES
QUADRUPOLES
SPIN
XENON 129
XENON 132
XENON IONS