Is the K-quantum number conserved in the order-to-chaos transittion region?
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To study the order-to-chaos transition in nuclei we investigate the validity of the K-quantum number in the excited rapidly rotating 163Er nucleus, analyzing the variance and covariance of the spectrum fluctuations of ¿-cascades feeding into low-K and high-K bands. The data are compared to simulated spectra obtained using a microscopic cranked shell model. K-selection rules are found to be obeyed for decay along excited unresolved rotational bands of internal excitation energy up to around 1.2 MeV and angular momenta 20![planck constant over two pi planck constant over two pi](https://www.sciencedirect.com/scidirimg/entities/210f.gif)
I
40
. At higher internal energy, from about 1.2 to 2.5 MeV, the selection rules are found to be only partially valid.
![planck constant over two pi planck constant over two pi](https://www.sciencedirect.com/scidirimg/entities/210f.gif)
![less-than-or-equals, slant less-than-or-equals, slant](https://www.sciencedirect.com/scidirimg/entities/2a7d.gif)
![less-than-or-equals, slant less-than-or-equals, slant](https://www.sciencedirect.com/scidirimg/entities/2a7d.gif)
![planck constant over two pi planck constant over two pi](https://www.sciencedirect.com/scidirimg/entities/210f.gif)
Originalsprog | Engelsk |
---|---|
Tidsskrift | Physics Letters B |
Vol/bind | 615 |
Udgave nummer | 3-4 |
Sider (fra-til) | 160-163 |
ISSN | 0370-2693 |
DOI | |
Status | Udgivet - 2005 |
ID: 71722