Interacting boson fermion model description for the levels of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Ge</mi></mrow><mrow><mn>39</mn></mrow><mrow></mrow><mrow></mrow><mrow></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>71</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span> populated in the beta decay of 65.30-h <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">As</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>71</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span>

R. A. Meyer; R. J. Nagle; S. Brant; E. Frle; V. Paar; P. K. Hopke

doi:10.1103/PhysRevC.41.686

Interacting boson fermion model description for the levels of ${}^{71}{Ge}_{39}$ populated in the beta decay of 65.30-h ${}^{71}{As}$

R. A. Meyer, R. J. Nagle, S. Brant, E. Frle, V. Paar, and P. K. Hopke

Phys. Rev. C 41, 686 – Published 1 February 1990

Abstract

We have studied the level properties of the N=39 nucleus ${}^{71}{Ge}$ by gamma-ray spectroscopy following the beta decay of ${}^{71}{As}$ , for which we measure a half-life of 65.30±0.07 h. When we calculated the level structure of ${}^{71}{Ge}$ within the framework of the interacting boson fermion model, we found good agreement with the experimentally determined level properties. Some evidence was found for the occurrence of levels built on the coexisting ${}^{70}{core}$ intruder state.

Received 27 September 1989

DOI:https://doi.org/10.1103/PhysRevC.41.686

Authors & Affiliations

R. A. Meyer

Division of High Energy and Nuclear Physics, U.S. Department of Energy, Washington, D.C. 20545
Nuclear Chemistry Division, Lawrence Livermore National Laboratory, Livermore, California 94550

R. J. Nagle

Nuclear Chemistry Division, Lawrence Livermore National Laboratory, Livermore, California 94550

S. Brant

Institut für Kernphysik, Kernforschungsanlage Jülich GmbH, Jülich, Federal Republic of Germany

E. Frle

Prirodoslovno-Matematički Fakultet, University of Zagreb, 41000 Zagreb, Yugoslavia

V. Paar

Lawrence Livermore National Laboratory, Livermore, California 94550
Prirodoslovno-Matematički Fakultet, University of Zagreb, 41000 Zagreb, Yugoslavia

P. K. Hopke

Department of Chemistry, Cora and Bayard Clarkson Science Center, Clarkson University, Potsdam, New York 13676

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Vol. 41, Iss. 2 — February 1990

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