Nuclear properties of the exotic high-spin isomer {sup 178m2}Hf

Journal Article · Sat Apr 01 00:00:00 EST 1995 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.47545· OSTI ID:21153756

Krieg, M; Boos, N; Le Blanc, F; Pinard, J; Huber, G; Lunney, M D; Le Du, D; Meunier, R; Hussonnois, M; Constantinescu, O; Kim, J B; Briancon, Ch; Crawford, J E; Duong, H T; Gangrski, Y P; Kuehl, T; Markov, B N; Oganessian, Yu Ts; Quentin, P; Roussiere, B ^[1] ; Laboratoire Aime Cotton, 91405 Orsay ^[2]; Laboratoire Aime Cotton, 91405 Orsay ^[2]; GSI, 64291 Darmstadt ^[3]

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1. Institut fuer Physik der Universitaet Mainz, 55099 Mainz (Germany) and Institut fuer Physik der Universitaet Mainz, 55099 Mainz (Germany) and Institut de Physique Nucleaire, IN2P3-CNRS, 91406 Orsay (France) and Institut de Physique Nucleaire, IN2P3-CNRS, 91406 Orsay (France)
2. France
3. Germany

The complete hyperfine spectrum in the optical transition 5d{sup 2}6s{sup 2} 3{sup P}2{yields}5d6s{sup 2}6p {sup 1}P1 of {sup 178m2}Hf was recorded by collinear laser spectroscopy using nanogram amounts of samples. The quadrupole moment and isomer shift were determined for the first time as well as a precise value and the sign of the magnetic dipole moment. The change in nuclear mean-square charge radius between the isomeric state {sup 178m2}Hf and the ground state {sup 178g}Hf was evaluated as {delta}<r{sup 2}>{sup 178,178m2}=-0.059(9) fm{sup 2}. From the hyperfine A- and B-factors the magnetic moment {gamma}I{sup 178m2}=+8.16(4){mu}N and the spectroscopic quadrupole moment Q{sup 178m2}s=6.00(7) b were extracted. In an additional experiment using a RIS scheme we recorded the A- and B-factors and the isotope shift of the 5d{sup 2}6s{sup 23} F3{yields}5d{sup 2}6s6p {sup 3}G4 and the 5d{sup d}6s{sup 2} {sup 3}P0{yields}5d{sup 2}6s6p {sup 3}D1 transition.

• OSTI ID: 21153756
• Journal Information: AIP Conference Proceedings, Vol. 329, Issue 1; Conference: 7. international symposium on resonance ionization spectroscopy, Bernkastel-Kues (Germany), 3-8 Jul 1994; Other Information: DOI: 10.1063/1.47545; (c) 1995 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BORON 7
D STATES
ENERGY-LEVEL TRANSITIONS
F STATES
GROUND STATES
HAFNIUM 178
HYPERFINE STRUCTURE
ISOMER SHIFT
ISOMERIC NUCLEI
LASER SPECTROSCOPY
MAGNETIC DIPOLE MOMENTS
NUCLEAR RADII
NUCLEAR STRUCTURE
QUADRUPOLE MOMENTS
RESONANCE IONIZATION MASS SPECTROSCOPY
SPECTRAL SHIFT
SPIN