Nuclear properties of the exotic high-spin isomer [sup 178]Hf[sup m2] from collinear laser spectroscopy

Journal Article · Mon Apr 25 04:00:00 EDT 1994 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.72.2689· OSTI ID:7206758

Boos, N; Le Blanc, F; Krieg, M; Pinard, J; Huber, G; Lunney, M D; Le Du, D; Meunier, R; Hussonnois, M; Constantinescu, O; Kim, J B; Briancon, C; Crawford, J E; Duong, H T; Gangrski, Y P; Kuehl, T; Markov, B N; Oganessian, Y T; Quentin, P; Roussiere, B ; Sauvage, J ^[1]

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1. Institut fuer Physik der Universitaet Mainz; 55099 Mainz (Germany) Institut de Physique Nucleaire; Institut National de Physique Nucleair e et de Physique des Particules Centre National de la Recherche Scientique; 91406 Orsay (France) Laboratoire Aime Cotton; 91405 Orsay (France) Centre de Spectrometrie Nucleaire et de Spectrometrie de MasseOrsay; Institut de Physique Nucleaire; Institut National de Physique Nucleaire et de Physique des Particules Centre National de la Recherche Scientique; 91406 Orsay (France) Gesselschaft fuer Schwerionenforschung Darmstadt m.b.H.; 64291 Darmstadt (Germany) Foster Radiation Laboratory; McGill University; Montreal; Quebec (Canada) Joint Institute for Nuclear Research; D

The complete hyperfine spectrum in the optical transition 5[ital d][sup 2]6[ital s][sup 2] [sup 3][ital P][sub 2][r arrow]5[ital d]6[ital s][sup 2]6[ital p] [sup 1][ital P][sub 1] of [sup 178]Hf[sup m2] 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 178]Hf[sup m2] and the ground state [sup 178]Hf[sup [ital g]] was evaluated as [delta][l angle][ital r][sup 2][r angle][sup 178.178m2]=[minus]0.059(9) fm[sup 2]. From the hyperfine [ital A] and [ital B] factors the magnetic moment [mu][sub [ital I]][sup 178m2]=+8.16(4) nuclear magnetons and the spectroscopic quadrupole moment [ital Q][sub [ital s]][sup 178m2]=+6.00(7) b were were extracted.

• OSTI ID: 7206758
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 72:17; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

663110* -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
663570 -- Nuclear Mass Ranges-- A=150-189-- (1992-)
664200 -- Spectra of Atoms & Molecules & their Interactions with Photons-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
DIPOLE MOMENTS
ENERGY LEVELS
EVEN-EVEN NUCLEI
GROUND STATES
HAFNIUM 178
HAFNIUM ISOTOPES
HIGH SPIN STATES
HYPERFINE STRUCTURE
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOMERS
ISOTOPES
LASER SPECTROSCOPY
MAGNETIC DIPOLE MOMENTS
MAGNETIC MOMENTS
MULTIPOLES
NUCLEAR PROPERTIES
NUCLEI
QUADRUPOLES
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SPECTROSCOPY
STABLE ISOTOPES
YEARS LIVING RADIOISOTOPES