New vistas in superdeformation
Conference
·
OSTI ID:10188346
- Joint Inst. for Heavy Ion Research, Oak Ridge, TN (United States)
The issue of nuclear shape coexistence, or nuclear superdeformation dates back to the mid-fifties; see the recent review. Already in 1956 Morinaga interpreted the deformed band in {sup 16}O built upon the I{sup {pi}} = 0{sup +} state at 6.049 MeV in terms of deformed 4p-4h configuration. Another early example of multiple shape coexistence is the spectrum of {sup 40}Ca with two well-deformed bands associated with 4p-4h and 8p-8h states at 3.352 MeV and 5.213 MeV, respectively. In heavy nuclei, three regions of superdeformed (SD) shapes have been established: Fission isomers in actinides, high spin SD states around {sup 152}Dy, and SD bands around {sup 192}Hg. An impressive experimental and theoretical effort has been devoted to exploring the underlying physics. There is no doubt that these investigations have opened up a new exciting field of nuclear superdeformed spectroscopy. In this short contribution I would like to concentrate on several aspects of nuclear superdeformation. The area of interest is so huge, and the space available is so limited, that a dramatic selection of the material had to be made. Some issues, such as the structure of collective excitations built on SD states, new symmetries of SD states, new predictions, etc., have been covered in other contributions to this Conference.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400; FG05-87ER40361
- OSTI ID:
- 10188346
- Report Number(s):
- CONF-9205108--17; ON: DE93001706
- Country of Publication:
- United States
- Language:
- English
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