dorsal/arxiv
View SchemaEntrance channels and alpha decay half-lives of the heaviest elements
| Authors | G. Royer, K. Zbiri, C. Bonilla |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0410048 |
| URL | https://arxiv.org/abs/nucl-th/0410048 |
| DOI | 10.1016/j.nuclphysa.2003.11.010 |
| Journal | Nucl.Phys. A730 (2004) 22 |
Abstract
The barriers standing against the formation of superheavy elements and their consecutive $\alpha$ decay have been determined in the quasimolecular shape path within a Generalized Liquid Drop Model including the proximity effects between nucleons in a neck, the mass and charge asymmetry, a precise nuclear radius and the shell effects given by the Droplet Model. For moderately asymmetric reactions double-hump potential barriers stand and fast fission of compact shapes in the outer well is possible. Very asymmetric reactions lead to one hump barriers which can be passed only with a high energy relatively to the superheavy element energy. Then, only the emission of several neutrons or an $\alpha$ particle can allow to reach an eventual ground state. For almost symmetric heavy-ion reactions, there is no more external well and the inner barrier is higher than the outer one.
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"abstract": "The barriers standing against the formation of superheavy elements and their\nconsecutive $\\alpha$ decay have been determined in the quasimolecular shape\npath within a Generalized Liquid Drop Model including the proximity effects\nbetween nucleons in a neck, the mass and charge asymmetry, a precise nuclear\nradius and the shell effects given by the Droplet Model. For moderately\nasymmetric reactions double-hump potential barriers stand and fast fission of\ncompact shapes in the outer well is possible. Very asymmetric reactions lead to\none hump barriers which can be passed only with a high energy relatively to the\nsuperheavy element energy. Then, only the emission of several neutrons or an\n$\\alpha$ particle can allow to reach an eventual ground state. For almost\nsymmetric heavy-ion reactions, there is no more external well and the inner\nbarrier is higher than the outer one.",
"arxiv_id": "nucl-th/0410048",
"authors": [
"G. Royer",
"K. Zbiri",
"C. Bonilla"
],
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"doi": "10.1016/j.nuclphysa.2003.11.010",
"journal_ref": "Nucl.Phys. A730 (2004) 22",
"title": "Entrance channels and alpha decay half-lives of the heaviest elements",
"url": "https://arxiv.org/abs/nucl-th/0410048"
},
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