K-isomers near and away the line of stability.
Conference
·
· BgNS
OSTI ID:982629
Gammaray spectroscopy studies of deformed rareearth and transfermium nuclei provide valuable information on the phenomena associated with high-K isomers and on the seniority dependence of the major residual interactions in deformed nuclei. Most of the studies in the A{approx}180 region so far were focused on neutrondeficient nuclei that are accessible by heavyion fusion evaporation reactions. Recently deepinelastic and multinucleon transfer reactions, in conjunction with time correlated {gamma}-ray coincidence techniques and large g-ray detector arrays, have been shown to represent a powerful tool to study nuclei near the valley of stability, as well as to access neutronrich nuclei. In addition, the discovery and characterization of highK isomeric states in {sup 254}No and neighboring transfermium nuclei play an important role in better understanding the structure of the heaviest elements and in testing theoretical predictions of their stability. This presentation will review the status of recent Kisomer studies in various regions of the nuclear chart, including nuclei near the line of stability where the longestlived isomers are known to reside, protonand neutronrich nuclei away from the line of stability and transfermium nuclei at the limit of nuclear existence. Selected examples from g-ray spectroscopy measurements using Gammasphere spectrometer and Fragment Mass Analyzer at Argonne National Laboratory will be presented. Properties of two quasiparticle Kisomers in a number of eveneven Cm, Pu, Fm and No nuclei and predictions of their excitation energies, quantum numbers and associate configurations, including comparisons with available experimental data, will be also discussed.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- SC
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 982629
- Report Number(s):
- ANL/NE/CP-60160
- Conference Information:
- Journal Name: BgNS Journal Issue: 1 ; 2009 Journal Volume: 13
- Country of Publication:
- United States
- Language:
- ENGLISH
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