Systematic study of the structure of odd-mass lanthanum nuclei. I. Levels in La137 from Cem+g137 decay

E. A. Henry, N. Smith, P. G. Johnson, and R. A. Meyer
Phys. Rev. C 12, 1314 – Published 1 October 1975
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Abstract

The level structure of La137 populated by the β decay of Cem+g137 was studied by γ-ray and conversion-electron spectroscopy using mass-separated sources, large-volume and Compton-suppressed Ge(Li) detectors, and a Si(Li) detector. Nine previously unreported transitions were observed and two more levels were established in La137. The La137 level structure is discussed in terms of the weak-coupling model.

RADIOACTIVITY Cem+g137 [from Ce136(n, γ) and Ba(α, Xnγ)]; measured Eγ, Iγ, Ice; deduced logft. La137 deduced ICC, levels, J, π. Mass separation, Ge(Li) and Si(Li) detectors, Compton suppression spectrometer.

  • Received 31 March 1975

DOI:https://doi.org/10.1103/PhysRevC.12.1314

©1975 American Physical Society

Authors & Affiliations

E. A. Henry, N. Smith, P. G. Johnson, and R. A. Meyer

  • Lawrence Livermore Laboratory, Livermore, California 94550

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Issue

Vol. 12, Iss. 4 — October 1975

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