dorsal/arxiv
View SchemaRole of Fragment Higher Static Deformations in the Cold Binary Fission of $^{252}$Cf
| Authors | A. Sandulescu, S. Misicu, F. Carstoiu, A. Florescu, W. Greiner |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9803048 |
| URL | https://arxiv.org/abs/nucl-th/9803048 |
| DOI | 10.1103/PhysRevC.57.2321 |
| Journal | Phys.Rev.C57:2321-2328,1998 |
Abstract
We study the binary cold fission of $^{252}$Cf in the frame of a cluster model where the fragments are born to their respective ground states and interact via a double-folded potential with deformation effects taken into account up to multipolarity $\lambda=4$. The preformation factors were neglected. In the case when the fragments are assumed to be spherical or with ground state quadrupole deformation, the $Q$-value principle dictates the occurence of a narrow region around the double magic $^{132}$Sn, like in the case of cluster radioactivity. When the hexadecupole deformation is turned on, an entire mass-region of cold fission in the range 138 - 156 for the heavy fragment arise, in agreement with the experimental observations. This fact suggests that in the above mentioned mass-region, contrary to the usual cluster radioactivity where the daughter nucleus is always a neutron/proton (or both) closed shell or nearly closed shell spherical nucleus, the clusterization mechanism seems to be strongly influenced by the hexadecupole deformations rather than the $Q$-value.
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"abstract": "We study the binary cold fission of $^{252}$Cf in the frame of a cluster\nmodel where the fragments are born to their respective ground states and\ninteract via a double-folded potential with deformation effects taken into\naccount up to multipolarity $\\lambda=4$. The preformation factors were\nneglected. In the case when the fragments are assumed to be spherical or with\nground state quadrupole deformation, the $Q$-value principle dictates the\noccurence of a narrow region around the double magic $^{132}$Sn, like in the\ncase of cluster radioactivity. When the hexadecupole deformation is turned on,\nan entire mass-region of cold fission in the range 138 - 156 for the heavy\nfragment arise, in agreement with the experimental observations.\n This fact suggests that in the above mentioned mass-region, contrary to the\nusual cluster radioactivity where the daughter nucleus is always a\nneutron/proton (or both) closed shell or nearly closed shell spherical nucleus,\nthe clusterization mechanism seems to be strongly influenced by the\nhexadecupole deformations rather than the $Q$-value.",
"arxiv_id": "nucl-th/9803048",
"authors": [
"A. Sandulescu",
"S. Misicu",
"F. Carstoiu",
"A. Florescu",
"W. Greiner"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.57.2321",
"journal_ref": "Phys.Rev.C57:2321-2328,1998",
"title": "Role of Fragment Higher Static Deformations in the Cold Binary Fission of $^{252}$Cf",
"url": "https://arxiv.org/abs/nucl-th/9803048"
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