The Decay of 1.25-Min Rb^<82>

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概要

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• Gamma rays accompanying the decay of 25.0-day Sr^<82> havebeen investigated. Single and coincidence spectra taken with scintillation counter have shown the presence of gamma rays with energies of 0.69, 0.78 and 1.41 Mev in the decay of 1.25-min Rb^<82> and their relative intensities have been determined. Log ft values have been evaluated on the basis of the proposed decay scheme. The allowed beta transitions from the 1÷ ground state of Rb^<82> to the ground state and the first and second 2÷ states are found to be successively hindered, in accord with Sakai's empirical rule. This problem is discussed in connection with the systematic trend of ft values in the neighboring nuclei. The E2/M1 mixing ratio of the 0.69-MeV gamma ray decaying from the second 2÷ state to the first 2÷ state have been determined from angular correlation pattern of the 0.78-0.69-MeV cascade and found to be -5.8^<+5.5>/<-22>.

• 社団法人日本物理学会の論文
• 1962-07-05

著者

• Sakai Mitsuo

  Institute For Nuclear Study University Of Tokyo

• Yamazaki Toshimitsu

  Institute For Nuclear Study University Of Tokyo

• Ikegami Hidetsugu

  Institute for Nuclear Study, University of Tokyo

• Ikegami Hidetsugu

  Institute For Nuclear Study University Of Tokyo:department Of Physics Brookhaven National Laboratory

• Ikegami Hidetsugu

  Institute For Nuclear Study University Of Tokyo

• Sakai M.

  Institute for Nuclear Study

• Sakai Mitsuo

  Institute For Nuclear Study Tokyo University

• Ikegami Hidetsugu

  Institute for Nuclear Study The University of Tokyo

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