Eur. Phys. J. A (2003) 20: 93-94
https://doi.org/10.1140/epja/i2002-10328-9

g-factors of isomeric states in the neutron-rich nuclei

¹ GANIL, BP 55027, F-14076, Caen Cedex 5, France
² IKS, University of Leuven, Celestijnenlaan 200 D, B-3001, Leuven, Belgium
³ Faculty of Physics, The Weizmann Institute of Science, 76100, Rehovot, Israel
⁴ Department of Physics and Astronomy, University of Tennessee, TN 37996, Knoxville, USA
⁵ Faculty of Physics, St. Kliment Ohridski University of Sofia, BG-1164, Sofia, Bulgaria
⁶ IFIN, P.O. Box MG6, 76900, Bucharest-Magurele, Romania
⁷ Geselschaft für Schwerionenforschung mbH, D-64291, Darmstadt, Germany
⁸ IEP, Warsaw University, Hoza 69, PL-00681, Warsaw, Poland
⁹ Department of Radiation Sciences, ISV, Uppsala University, S-61182, Nyköping, Sweden
¹⁰ Oliver Lodge Laboratory, University of Liverpool, L69 7ZE, Liverpool, UK
¹¹ Department of Physics, FLNR-JINR, 141980, Dubna, Moscow Region, Russia
¹² Department of Physics, University of Surrey, Guildford, GU2 5XH, UK
¹³ Oak Ridge National Laboratory, Physics Division, TN 37830, Oak Ridge, USA

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Abstract

We report the results from the first experiment to measure gyromagnetic factors of μs isomers in neutron-rich nuclei produced by intermediate-energy projectile-fragmentation reactions. The Time Dependent Perturbed Angular Distribution (TDPAD) method was applied in combination with the heavy-ion-gamma correlation technique. The nuclides in the vicinity of ⁶⁸ Ni were produced and spin-oriented following the fragmentation of a ⁷⁶ Ge, 61.4 MeV/u beam at GANIL. The results obtained, |g|(^69m Cu) = 0.225(25) and |g|(^67m Ni) = 0.125(6) provide another indication of the importance of proton excitation across the Z = 28 shell gap for the description of these states.