g-factors of rotational states in176Hf,177Hf, and180Hf

Autor: J. Schüth, W. Knichel, I. Alfter, Reiner Vianden, E. Bodenstedt
Rok vydání: 1996
Předmět:
Zdroj: Zeitschrift für Physik A: Hadrons and Nuclei. 355:363-376
ISSN: 1434-601X
0939-7922
DOI: 10.1007/bf02769710
Popis: g-factors of rotational states in 176Hf and 180Hf were measured with the twelve detector IPAC-apparatus of our laboratory [1]. The natural radioactivity 3.78 · 1010y 176Lu and the 5.5 h isomer 180mHf were used which populate the ground-state rotational bands of 176Hf and 180Hf. The integral rotations of γ-γ directional correlations in strong external magnetic fields and in static hyperfine fields of (Lu → Hf)Fe2 and HfFe2 were observed. The following results were obtained: Open image in new window The hyperfine field in (Lu → Hf)Fe2 was calibrated by observing the integral rotation of the 9/2− first excited state of 177Hf populated in the decay of 6.7d 177Lu. The g-factor of this state was redetermined in an external magnetic field as Open image in new window Finally the g-factor of the 21+ state of 176Hf was derived from the measured g(21+) of 180Hf by use of the precisely known ratio g(21+, 176Hf)/g(21+, 180Hf) [2] as Open image in new window
Databáze: OpenAIRE
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