Does an Effective Transition Operator Have a Two-body Part? (中重核・重い領域の原子核における分子的構造)

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概要

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• Effective electromagnetic transition operators pertinent to the model space in the shell model are formulated within the framework of the first-order perturbation theory. The correlated operators thus obtained consist of one-body and two-body transition operators, the former of which is considered to be origin of effective charges, while the latter of which cannot be incorporated into the idea of effective charges. Two-body parts of the effective operators which arise theoretically are examined carefully by making the calculation of Cλ form factors of electron scattering as well as the Eλ transition rates. It is shown that the E4, E6 and M5 transitions in the 1f_<7/2> shell nuclei, which have required anomalous effective charges to reproduce experiment, can be interpreted by using the effective transition operators, in which the two-body contributions are considerably large to such an extent that the concept of effective charge is broken down.

• 素粒子論グループ 素粒子研究編集部の論文
• 1995-11-20

著者

• Yokoyama Atsushi

  Laboratory Of Physics School Of Medicine Teikyo University(molecular Structure In Medium-weight And

• Yokoyama Atsushi

  Laboratory Of Physics School Of Medicine Teikyo University

関連論文

• 29a-YM-5 Two-Body Part of Effective Transition Operators and Higher-Multipole Transitions in the 1f_-Shell Nuclei
• Shell model in the fp-shell region,revisited (中重核および重い原子核における核子間相関とクラスタリング)
• Does an Effective Transition Operator Have a Two-body Part? (中重核・重い領域の原子核における分子的構造)

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