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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/2241/6822
6a6d95b8-f4ce-47fa-bcdb-734b058a6d1c
名前 / ファイル ライセンス アクション
A0433.pdf A0433.pdf (158.2 kB)
Item type アイテムタイプT(1)
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

WEKO 34761

ja 坂本, 秀生

en Sakamoto, Hideo

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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
アクセス権
アクセス権 open access
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学位名 博士(理学)
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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
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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
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