dorsal/arxiv
View SchemaEffects of Time-Odd Components in Mean Field on Large Amplitude Collective Dynamics
| Authors | Nobuo Hinohara, Takashi Nakatsukasa, Masayuki Matsuo, Kenichi Matsuyanagi |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0511086 |
| URL | https://arxiv.org/abs/nucl-th/0511086 |
| DOI | 10.1143/PTP.115.567 |
| Journal | Prog.Theor.Phys.115:567-599,2006 |
Abstract
We apply the adiabatic self-consistent collective coordinate (ASCC) method to the multi-O(4) model and study collective mass (inertia function) of the many-body tunneling motion. Comparing results with those of the exact diagonalization, we show that the ASCC method succeeds in describing gradual change of excitation spectra from an anharmonic vibration about the spherical shape to a doublet pattern associated with a deformed double-well potential possessing the oblate-prolate symmetry. The collective mass is significantly increased by the quadrupole-pairing contribution to time-odd components of the moving mean field. In contrast, the cranking (Inglis-Belyaev) mass based on the constrained mean field, which ignores the time-odd components, is smaller than the ASCC mass and fails to reproduce the exact spectra.
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"abstract": "We apply the adiabatic self-consistent collective coordinate (ASCC) method to\nthe multi-O(4) model and study collective mass (inertia function) of the\nmany-body tunneling motion. Comparing results with those of the exact\ndiagonalization, we show that the ASCC method succeeds in describing gradual\nchange of excitation spectra from an anharmonic vibration about the spherical\nshape to a doublet pattern associated with a deformed double-well potential\npossessing the oblate-prolate symmetry. The collective mass is significantly\nincreased by the quadrupole-pairing contribution to time-odd components of the\nmoving mean field. In contrast, the cranking (Inglis-Belyaev) mass based on the\nconstrained mean field, which ignores the time-odd components, is smaller than\nthe ASCC mass and fails to reproduce the exact spectra.",
"arxiv_id": "nucl-th/0511086",
"authors": [
"Nobuo Hinohara",
"Takashi Nakatsukasa",
"Masayuki Matsuo",
"Kenichi Matsuyanagi"
],
"categories": [
"nucl-th"
],
"doi": "10.1143/PTP.115.567",
"journal_ref": "Prog.Theor.Phys.115:567-599,2006",
"title": "Effects of Time-Odd Components in Mean Field on Large Amplitude Collective Dynamics",
"url": "https://arxiv.org/abs/nucl-th/0511086"
},
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