Level Structure of ^<177>Lu Studied through the Beta Decay of ^<177>Yb

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概要

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• The level scheme of ^<177>Lu following theβ-decay of ^<177>Yb (T_<1/2>=1.9h) has been constructed from results of γ singles and γ-γ coincidence measurements. Angular correlations of γ-rays were measured with a 4-Ge detector system. Mixing ratios (E2/M1) of seven γ-rays were obtained. The spins and parities of the 1049.4, 1150.0 and 1241.7keV levels have been assigned to be 9/2^-, 7/2^+ and 7/2^+, respectively. These assignments for the 1049.4 and 1241.7 keV levels are consistent with the interpretation that these levels are members of three-quasiparticle multiplets. Energy splittings of three-quasiparticle states were calculated. The calculated 1160 keV 7/2^+ level may correspond to the observed 1150.0 keV 7/2^+ level. A calculation with a rotation-vibration coupling model was performed. The K-2 γ-vibrational state of the 7/2^+ [404]state and the K ± 2 γ-vibrational states of the 9/2^-[514] state are expected to exist near 1300 keV.

• 社団法人日本物理学会の論文
• 1995-10-15

著者

• YAMADA Shigeru

  Research Center Hospital for Charged Particle Therapy, National Institute of Radiological Sciences

• OKANO Kotoyuki

  Research Reactor Institute,Kyoto University

• Aoki Kazuhiko

  Himeji Institute of Technology

• Sharshar T

  Tanta Univ. Kafr El‐shaikh Egy

• Sharshar Taher

  Research Reactor Institute Kyoto University

• Okano Kotoyuki

  Research Reactor Institute Kyoto University

• Yamada Shigeru

  Research Center For Charged Particle Therapy National Institute Of Radiological Sciences

• Yamada Shigeru

  Research Center For Advanced Science And Technology The University Of Tokyo

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