Nuclear moments of {sup 179}Ta from optical measurement of hyperfine structure

Journal Article · Thu Feb 01 04:00:00 EST 1996 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.53.611· OSTI ID:278830

Wakasugi, M; Jin, W G; Hies, M G; Inamura, T T; Murayama, T; Ariga, T; Ishizuka, T; Wakui, T; Katsuragawa, H; Ruan, J Z; Sugai, I; Ikeda, A ^[1]

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1. Cyclotron Laboratory, The Institute of Physical and Chemical Research (RIKEN), Wako-shi, Saitama 351-01 (Japan)

We have made high-resolution laser spectroscopy of the hyperfine structure of a radioactive isotope {sup 179}Ta ({ital T}{sub 1/2}=1.8 y) using an argon-ion sputtering atomic-beam source. From hyperfine constants {ital A} and {ital B} of the atomic ground state ({sup 4}{ital F}{sub 3/2} 5{ital d}{sup 3}6{ital s}{sup 2}), the magnetic dipole and electric quadrupole moments of the nuclear ground state of {sup 179}Ta ({ital I}=7/2) have been determined for the first time: {mu}{sup 179}{sub {ital I}}=2.289(9) {mu}{sub {ital N}} and {ital Q}{sup 179}{sub {ital s}}=3.37(4) b. It is pointed out that magnetic moments of the ground and isomeric states in the region {ital N}=102{endash}112 can be systematically described in terms of the presently available theory while the revealed systematic behavior of electric quadrupole moments is hardly reproduced by the theory. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 278830
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 2 Vol. 53; ISSN PRVCAN; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
GROUND STATES
HYPERFINE STRUCTURE
ISOMERS
LASER SPECTROSCOPY
NUCLEAR ELECTRIC MOMENTS
NUCLEAR MAGNETIC MOMENTS
RESOLUTION
TANTALUM 179