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Decay of spontaneous fission isomers in the coulomb field of a third nucleus
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DOI：10.1142/S021830132641017X.png)
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Abstract
En 中文
In the framework of trinuclear system (TNS) model, we investigate the formation of heavy fission isomers produced in spontaneous ternary fission of 252Cf, and their decay while traversing the Cu foil, observed in Dubna experiments. After the first decay of TNS, the asymmetric DNS is formed introducing itself as a fission isomer in cluster state. The Coulomb interaction of this asymmetric DNS and foil nucleus Cu decreases the DNS decay barrier. The calculated half-lives of asymmetric DNS show a strong decrease when the DNS approaches to the foil nucleus Cu, supporting the experimental observations.
Keywords:
Spontaneous fission
ternary decay
collinear cluster tri-partition
fission isomers
dinuclear system
Journal
I
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0.9
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82
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0