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Structure of the neutron-rich nucleus 9437 rb57

  • Nuclear Structure and Reactions
  • Published:
Zeitschrift für Physik A Atomic Nuclei

Abstract

A level scheme has been established for 9437 Rb57 based on studies at the fission-product separator JOSEF ofγγ coincidences following theβ- decay of94Kr. For the 190.7 keV level a half-life of 2.5(8) ns has been determined through the centroid-shift method. The majorβ-decay branch of94Kr proceeds with log ft=3.7 into the 988.4 keV state in94Rb. This transition must be of the 0+→1+ GT type involving the transitionνg7/2πg9/2. IBFFM calculations have been performed for94Rb, starting from the parametrization used in the previous IBM investigations for the isotope93Rb and the isotone96Y. A theoretical interpretation of the low-lying levels including propositions for the spins is given in a comparison to the available data.

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We acknowledge very fruitful discussions with Drs. H.G. Börner, J. Bonn, G.Huber, K.-L.Kratz, R. Neugart, E.Otten, B.Pfeiffer and O.W.B. Schult. Mrs. c. Strauch has very carefully prepared the manuscript.

During the studies at3

During the studies at3, as an Alexander-von-Humboldt fellow

Supported by Internationales Büro, Kernforschungsanlage Jülich, F.R. Germany

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Lhersonneau, G., Brant, S., Ohm, H. et al. Structure of the neutron-rich nucleus 9437 rb57 . Z. Physik A - Atomic Nuclei 334, 259–267 (1989). https://doi.org/10.1007/BF01284553

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  • DOI: https://doi.org/10.1007/BF01284553

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