Brute-force orientation of178m 2Hf and magnetic moments of178m 1Hf and178m 2Hf |
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| Authors: | H. Postma B. Kastelein N. Severijns D. Vandeplassche J. Vanhaverbeke L. Vanneste E. van Walle J. Wouters J. van Klinken |
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| Affiliation: | (1) Department of Applied Physics, Delft University of Technology, P.O. Box 5046, NL-2600 GA Delft, The Netherlands;(2) Instituut voor Kern-en Stralingsfysica, Katholieke Universiteit Leuven, Celestijnenlaan 200D, B-3030 Leuven, Belgium;(3) Kernfysisch Versneller Instituut, Zernikelaan 25, NL-9747 AA Groningen, The Netherlands |
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| Abstract: | Gamma-ray anisotropy measurements have been carried out with brute-force oriented178m 2Hf (16+) to derive its magnetic moment 7.26 (±0.16; +0.2/−0) nm and E2/M1 mixing ratios of some γ-transitions observed in the decay of this isomer. This magnetic moment is in agreement with an earlier proposed four-quasi-particle configuration. The magnetic moment of the 8− isomer at 1147.7 keV (4.0 s) is estimated to be between 1.4 and 5.3 nm, which confirms mixing of the {p[514]9/2 +p[404]7/2}8− and {n[514]7/2+n[624]9/2}8− configurations, which summed together give the 16+ isomer. |
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