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Ground state bands in142Gd and140Sm

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Zeitschrift für Physik A Atoms and Nuclei

Abstract

The ground state bands of theN=78 isotones142 Gd and140Sm were observed up to the 8+ state by bombarding144Sm and142Nd withα-particles of energies between 80 and 130 MeV. Excitation functions,γ-γ coincidences, lifetimes and angular distributions were measured. The ground state band in140Sm is partially fed by an isomeric state ofT 1/2−17ns. No such isomerism is observed for142Gd. The level energies are very similar in both cases and agree well with the predictions of the VMI model.

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Authors and Affiliations

  1. Kernforschungsanlage Jülich, Institut für Kernphysik, Jülich, F.R. Germany

    M. A. J. Mariscotti, H. Beuscher, W. F. Davidson, R. M. Lieder, A. Neskakis & H. M. Jäger

  2. Departamento de Fisica Nuclear, Comision Nacional de Energia Atomica, Buenos Aires, Argentina

    M. A. J. Mariscotti

Authors
  1. M. A. J. Mariscotti
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  2. H. Beuscher
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  3. W. F. Davidson
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  4. R. M. Lieder
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  5. A. Neskakis
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  6. H. M. Jäger
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Additional information

One of us, M.A.J. Mariscotti, would like to express his sincere thanks to Mr. D. Kielhorn for his efforts to make possible this work at the Kernforschungsanlage. The authors thank Miss Alicia Diaz Romero for her kind assistance in computing.

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Mariscotti, M.A.J., Beuscher, H., Davidson, W.F. et al. Ground state bands in142Gd and140Sm. Z Physik A 279, 169–173 (1976). https://doi.org/10.1007/BF01437874

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  • DOI: https://doi.org/10.1007/BF01437874

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