dorsal/arxiv
View SchemaMicroscopic Structure of High-Spin Vibrational States in Superdeformed A=190 Nuclei
| Authors | Takashi Nakatsukasa, Kenichi Matsuyanagi, Shoujirou Mizutori, Yoshifumi R. Shimizu |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9612002 |
| URL | https://arxiv.org/abs/nucl-th/9612002 |
| Journal | Proc. Conf. on Nucl. Structure at the Limits, Argonne, (1996), ANL/PHY-97/1, p.111. |
Abstract
Microscopic RPA calculations based on the cranked shell model are performed to investigate the quadrupole and octupole correlations for excited superdeformed (SD) bands in even-even A=190 nuclei. The K=2 octupole vibrations are predicted to be the lowest excitation modes at zero rotational frequency. The Coriolis coupling at finite frequency produces different effects depending on the neutron and proton number of nucleus. The calculations also indicate that some collective excitations may produce J(2) moments of inertia almost identical to those of the yrast SD band. An interpretation of the observed excited bands invoking the octupole vibrations is proposed, which suggests those octupole vibrations may be prevalent in even-even SD A=190 nuclei.
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"abstract": "Microscopic RPA calculations based on the cranked shell model are performed\nto investigate the quadrupole and octupole correlations for excited\nsuperdeformed (SD) bands in even-even A=190 nuclei. The K=2 octupole vibrations\nare predicted to be the lowest excitation modes at zero rotational frequency.\nThe Coriolis coupling at finite frequency produces different effects depending\non the neutron and proton number of nucleus. The calculations also indicate\nthat some collective excitations may produce J(2) moments of inertia almost\nidentical to those of the yrast SD band. An interpretation of the observed\nexcited bands invoking the octupole vibrations is proposed, which suggests\nthose octupole vibrations may be prevalent in even-even SD A=190 nuclei.",
"arxiv_id": "nucl-th/9612002",
"authors": [
"Takashi Nakatsukasa",
"Kenichi Matsuyanagi",
"Shoujirou Mizutori",
"Yoshifumi R. Shimizu"
],
"categories": [
"nucl-th"
],
"journal_ref": "Proc. Conf. on Nucl. Structure at the Limits, Argonne, (1996),\n ANL/PHY-97/1, p.111.",
"title": "Microscopic Structure of High-Spin Vibrational States in Superdeformed A=190 Nuclei",
"url": "https://arxiv.org/abs/nucl-th/9612002"
},
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