dorsal/arxiv
View SchemaCollective coordinates, shape transitions and shape coexistence: a microscopic approach
| Authors | Takashi Nakatsukasa, Niels R. Walet |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9807078 |
| URL | https://arxiv.org/abs/nucl-th/9807078 |
| DOI | 10.1103/PhysRevC.58.3397 |
| Journal | Phys.Rev.C58:3397-3406,1998 |
Abstract
We investigate a description of shape-mixing and shape-transitions using collective coordinates. To that end we apply a theory of adiabatic large-amplitude motion to a simplified nuclear shell-model, where the approximate results can be contrasted with exact diagonalisations. We find excellent agreement for different regimes, and contrast the results with those from a more standard calculation using a quadrupole constraint. We show that the method employed in this work selects diabatic (crossing) potential energy curves where these are appropriate, and discuss the implications for a microscopic study of shape coexistence.
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"abstract": "We investigate a description of shape-mixing and shape-transitions using\ncollective coordinates. To that end we apply a theory of adiabatic\nlarge-amplitude motion to a simplified nuclear shell-model, where the\napproximate results can be contrasted with exact diagonalisations. We find\nexcellent agreement for different regimes, and contrast the results with those\nfrom a more standard calculation using a quadrupole constraint. We show that\nthe method employed in this work selects diabatic (crossing) potential energy\ncurves where these are appropriate, and discuss the implications for a\nmicroscopic study of shape coexistence.",
"arxiv_id": "nucl-th/9807078",
"authors": [
"Takashi Nakatsukasa",
"Niels R. Walet"
],
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"nucl-th"
],
"doi": "10.1103/PhysRevC.58.3397",
"journal_ref": "Phys.Rev.C58:3397-3406,1998",
"title": "Collective coordinates, shape transitions and shape coexistence: a microscopic approach",
"url": "https://arxiv.org/abs/nucl-th/9807078"
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