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Microscopic analysis of anharmonicities in nuclear quadrupole collective motions by use of the improved self-consistent effective interaction
http://hdl.handle.net/2241/6822
http://hdl.handle.net/2241/68226a6d95b8-f4ce-47fa-bcdb-734b058a6d1c
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
A0433.pdf (158.2 kB)
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| Item type | アイテムタイプT(1) | |||||
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| 公開日 | 2007-07-25 | |||||
| タイトル | ||||||
| タイトル | Microscopic analysis of anharmonicities in nuclear quadrupole collective motions by use of the improved self-consistent effective interaction | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 資源タイプ | ||||||
| 資源タイプ | doctoral thesis | |||||
| 著者 |
坂本, 秀生
× 坂本, 秀生 |
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| 抄録 | ||||||
| 内容記述 | Anharmonicities in nuclear quadrupole collective motions are studied in detail by deriving first the selfconsistent effective interactions and then by applying a boson expansion method. Our theory of effective interactions in nuclei is based on the concept of nuclear saturation and the selfconsistency between the shape of an average potential and that of a density distribution (nuclear selfconsistency). The higher-order effective interactions (e.g. a three-body interaction, etc. ) are derived by imposing the nuclear selfconsistency in higher-order accuracy when other modes are simultaneously excited in the system. The interactions thus derived are carefully examined. A theory is generalized further to a system with a velocity-dependent potential, yeilding multipole-pairing interactions. The selfconsistent effective interactions thus derived are applied to the mcroscopic analyses of anharmonicities in nuclear quadrupole collective motions. The numerical calculations are made in terms of the boson expansion technique developed by Kishimoto and Tamura with several new refinements, such as the removal of spurious excitation modes and the inclusion of all possible noncollective excitations. From the analyses, it is demonstrated that the three-body interaction provides an important mechanism to restore the order in the system, which otherwise would have been destroyed. General agreements with experimental date on nuclei in various mass region have confirmed that our theory is capable of describing various types of anharmonicities characteristic to the nuclei in question. | |||||
| 書誌情報 |
発行日 1987 |
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| アクセス権 | ||||||
| アクセス権 | open access | |||||
| 取得学位 | ||||||
| 学位名 | 博士（理学） | |||||
| 取得学位 | ||||||
| 学位名 | Doctor of Philosophy in Science | |||||
| 学位授与大学 | ||||||
| 学位授与機関名 | 筑波大学 | |||||
| 学位授与機関名 | University of Tsukuba | |||||
| 学位授与年度 | ||||||
| 内容記述 | 1986 | |||||
| 学位授与年月日 | ||||||
| 学位授与年月日 | 1987-03-25 | |||||
| 報告番号 | ||||||
| 学位授与番号 | 甲第433号 | |||||
| 関係URI | ||||||
| 関連タイプ | hasFormat | |||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.tulips.tsukuba.ac.jp/opac/volume/583543 | |||||
| 言語 | ja | |||||
| 関連名称 | 本文はOPACにあり | |||||
