dorsal/arxiv
View SchemaOnset of Rotational Damping in Superdeformed Nuclei
| Authors | K. Yoshida, M. Matsuo |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9604015 |
| URL | https://arxiv.org/abs/nucl-th/9604015 |
| DOI | 10.1016/S0375-9474(96)00319-3 |
| Journal | Nucl.Phys. A612 (1997) 26-52 |
Abstract
We discuss damping of the collective rotational motion in $A\sim 150$ superdeformed nuclei by means of a shell model combining the cranked Nilsson mean-filed and the surface-delta two-body residual force. It is shown that, because of the shell structure associated with the superdeformed mean-field, onset energy of the rotational damping becomes $E_x \sim 2-3 $ MeV above yrast line, which is much higher than in normal deformed nuclei. The mechanism of the shell structure effect is investigated through detailed analysis of level densities in superdeformed nuclei. It is predicted the onset of damping varies in different supedeformed nuclei along with variation in the single-particle structure at the Fermi surface.
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"abstract": "We discuss damping of the collective rotational motion in $A\\sim 150$\nsuperdeformed nuclei by means of a shell model combining the cranked Nilsson\nmean-filed and the surface-delta two-body residual force. It is shown that,\nbecause of the shell structure associated with the superdeformed mean-field,\nonset energy of the rotational damping becomes $E_x \\sim 2-3 $ MeV above yrast\nline, which is much higher than in normal deformed nuclei. The mechanism of the\nshell structure effect is investigated through detailed analysis of level\ndensities in superdeformed nuclei. It is predicted the onset of damping varies\nin different supedeformed nuclei along with variation in the single-particle\nstructure at the Fermi surface.",
"arxiv_id": "nucl-th/9604015",
"authors": [
"K. Yoshida",
"M. Matsuo"
],
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"nucl-th"
],
"doi": "10.1016/S0375-9474(96)00319-3",
"journal_ref": "Nucl.Phys. A612 (1997) 26-52",
"title": "Onset of Rotational Damping in Superdeformed Nuclei",
"url": "https://arxiv.org/abs/nucl-th/9604015"
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