High-spin states in Sm146

C. H. King, B. A. Brown, and T. L. Khoo
Phys. Rev. C 18, 2127 – Published 1 November 1978
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Abstract

Transitions between states up to spin 16 populated in the Nd146(α, 4n) reaction were observed using γγ coincidence, γ-ray angular distribution and excitation function, and delayed γ-ray measurements. A level scheme was constructed up to 6.2 MeV with all levels above 3.8 MeV observed for the first time. Levels below 4.1 MeV were interpreted in terms of the coupling between two extra-core neutrons and excitations of the N=82 core. Rotational structures and isomers were searched for above 4.1 MeV, but none were found.

NUCLEAR REACTIONS: Nd146(α, 4nγ)Sm146, E=47.9 MeV; measured Eγ, Iγ(θ), γγ coinc., αγ delay, Eγ vs. Eα. Sm146 deduced levels, J, π. Ge(Li) detectors. Enriched target.

  • Received 18 November 1977

DOI:https://doi.org/10.1103/PhysRevC.18.2127

©1978 American Physical Society

Authors & Affiliations

C. H. King*, B. A. Brown, and T. L. Khoo

  • Cyclotron Laboratory and Department of Physics, Michigan State University, East Lansing, Michigan 48824

  • *Present address: Nuclear Science Division, Lawrence Berkeley Laboratory, University of California, Berkeley, CA 94720, USA.
  • Present address: Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA.

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Vol. 18, Iss. 5 — November 1978

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