S Misicu et al 1999 J. Phys. G: Nucl. Part. Phys. 25 L147 doi:10.1088/0954-3899/25/12/103
Molecular collective vibrations in the ternary neutronless fission of 252Cf
S Misicu
,
, P O Hess§, A Sandulescu, and W Greiner
LETTER TO THE EDITOR
Based on a recent experimental finding which may suggest the existence of a tri-nuclear molecular structure before the cold ternary fragmentation of 252Cf takes place, we solved the eigenvalue problem of a certain class of vibrations which are very likely to occur in these molecules. These oscillations are the result of the joint action of rotations of the heavier fragments and the transversal vibrations of the lighter spherical cluster with respect to the fission axis. In the calculation of the interaction between the heavier fragments we took into account higher multipole deformations, including the hexadecupole one, and introduced a repulsive nuclear part to ensure the creation of a potential pocket in which a few molecular states can be accommodated. The possibility to observe the de-excitation of such states is discussed in connection with the molecular lifetime.
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Issue 12 (December 1999)
Received 15 October 1999
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Molecular collective vibrations in the ternary neutronless fission of 252Cf
S Misicu et al 1999 J. Phys. G: Nucl. Part. Phys. 25 L147
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