dorsal/arxiv
View SchemaCollisions of Deformed Nuclei and Superheavy-Element Production
| Authors | Akira Iwamoto, Peter Moller, J. Rayford Nix, Hiroyuki Sagawa |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9508039 |
| URL | https://arxiv.org/abs/nucl-th/9508039 |
Abstract
A detailed understanding of complete fusion cross sections in heavy-ion collisions requires a consideration of the effects of the deformation of the projectile and target. Our aim here is to show that deformation and orientation of the colliding nuclei have a very significant effect on the fusion-barrier height and on the compactness of the touching configuration. To facilitate discussions of fusion configurations of deformed nuclei, we develop a classification scheme and introduce a notation convention for these configurations. We discuss particular deformations and orientations that lead to compact touching configurations and to fusion-barrier heights that correspond to fairly low excitation energies of the compound systems. Such configurations should be the most favorable for producing superheavy elements. We analyse a few projectile-target combinations whose deformations allow favorable entrance-channel configurations and whose proton and neutron numbers lead to compound systems in a part of the superheavy region where alpha half-lives are calculated to be observable, that is, longer than 1 microsecond.
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"abstract": "A detailed understanding of complete fusion cross sections in heavy-ion\ncollisions requires a consideration of the effects of the deformation of the\nprojectile and target. Our aim here is to show that deformation and orientation\nof the colliding nuclei have a very significant effect on the fusion-barrier\nheight and on the compactness of the touching configuration. To facilitate\ndiscussions of fusion configurations of deformed nuclei, we develop a\nclassification scheme and introduce a notation convention for these\nconfigurations. We discuss particular deformations and orientations that lead\nto compact touching configurations and to fusion-barrier heights that\ncorrespond to fairly low excitation energies of the compound systems. Such\nconfigurations should be the most favorable for producing superheavy elements.\nWe analyse a few projectile-target combinations whose deformations allow\nfavorable entrance-channel configurations and whose proton and neutron numbers\nlead to compound systems in a part of the superheavy region where alpha\nhalf-lives are calculated to be observable, that is, longer than 1 microsecond.",
"arxiv_id": "nucl-th/9508039",
"authors": [
"Akira Iwamoto",
"Peter Moller",
"J. Rayford Nix",
"Hiroyuki Sagawa"
],
"categories": [
"nucl-th"
],
"title": "Collisions of Deformed Nuclei and Superheavy-Element Production",
"url": "https://arxiv.org/abs/nucl-th/9508039"
},
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