Conservation of the K-quantum number in warm nuclei
- A. Bracco
- S. Leoni
- F. Camera
- A. Paleni
- M. Pignanelli
- G. Benzoni
- N. Blasi
- C. Grassi
- B. Million
- E. Vigezzi
- O. Wieland
- M. Matsuo
- T. Dossing
- B. Herskind
- G. B. Hagemann
- J. Wilson
- A. Maj
- M. Kmiecik
- C. Lo Bianco
- C. M. Petrache
- M. Castoldi
- A. Zucchiati
- G. DeAngelis
- D. Napoli
- D. Curien
- P. Bednarczyk Leoni
- N. Blasi
- F. Camera
- C. Grassi
- B. Million
- A. Paleni
- M. Pignanelli
- E. Vigezzi
- O. Wieland
- M. Matsuo
- T. Dossing
- B. Herskind
- G. B. Hagemann
- J. Wilson
- A. Maj
- M. Kmiecik
- C. Lo Bianco
- C. M. Petrache
- M. Castoldi
- A. Zucchiati
- G. DeAngelis
- D. Napoli
- D. Curien
- P. Bednarczyk
DOIAbstract
The selection rules on the K-quantum number in rapidly rotating warm nuclei are investigated analyzing quasi-continuum spectra feeding into low-K and high-K bands in Er-163. The data are compared to simulated spectra obtained using the band mixing model predictions including the residual interaction and a term representing the effect of the Kquanturn number on the rotational energy. K-selection rules are found to be obeyed by the decay along excited unresolved rotational bands of heat energy up to around 1.2 MeV and angular momentum 30h <= I <= 40h. In contrast, the results corresponding to higher heat energy of 1.2 to 2.5 MeV indicate that the selection rules are only partially satisfied
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