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.
Conservation of the K-quantum number in warm nuclei / A. Bracco, G. Benzoni, S. 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 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. - In: NUCLEAR PHYSICS. A. - ISSN 0375-9474. - 752:1-4(2005 Apr), pp. 227C-230C.
Conservation of the K-quantum number in warm nuclei
A. Bracco;S. Leoni;F. Camera;A. Paleni;M. Pignanelli;
2005
Abstract
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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