| Autor: |
KARPOV, A. V., ZAGREBAEV, V. I., MARTINEZ PALENZUELA, Y., FELIPE RUIZ, L., GREINER, WALTER |
| Předmět: |
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| Zdroj: |
International Journal of Modern Physics E: Nuclear Physics; Feb2012, Vol. 21 Issue 2, p1250013-1-1250013-20, 20p, 1 Diagram, 6 Graphs |
| Abstrakt: |
Decay properties and stability of heaviest nuclei with Z≤132 are studied within the macro-microscopical approach for nuclear ground state masses and phenomenological relations for the half-lives with respect to α-decay, β-decay and spontaneous fission. We found that at existing experimental facilities the synthesis and detection of nuclei with Z>120 produced in fusion reactions may be difficult due to their short half-lives (shorter than 1 μs). The nearest (more neutron-rich) isotopes of superheavy elements with 111≤Z≤115 to those synthesized recently in Dubna in 48Ca-induced fusion reactions are found to be β+-decaying. This fact may significantly complicate their experimental identification. However it gives a chance to synthesize in fusion reactions the most stable superheavy nuclei located at the center of the island of stability. Our calculations yield that the β-stable isotopes 291Cn and 293Cn with a half-life of about 100 years are the longest-living superheavy nuclei located at the island of stability. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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