Shape study of the N=Z nucleus Kr 72 via β decay

J. A. Briz, E. Nácher, M. J.G. Borge, A. Algora, B. Rubio, Ph Dessagne, A. Maira, D. Cano-Ott, S. Courtin, D. Escrig, L. M. Fraile, W. Gelletly, A. Jungclaus, G. Le Scornet, F. Maréchal, Ch Miehé, E. Poirier, A. Poves, P. Sarriguren, J. L. TaínO. Tengblad

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Abstract

The β decay of the N=Z nucleus Kr72 has been studied with the total absorption spectroscopy technique at ISOLDE (CERN). A total B(GT)=0.79(4)gA2/4π has been found up to an excitation energy of 2.7 MeV. The B(GT) distribution obtained is compared with predictions from state-of-the-art theoretical calculations to learn about the ground state deformation of Kr72. Although a dominant oblate deformation is suggested by direct comparison with quasiparticle random phase approximation (QRPA) calculations, beyond-mean-field and shell-model calculations favor a large oblate-prolate mixing in the ground state.

Original languageEnglish
Article number054326
JournalPhysical Review C - Nuclear Physics
Volume92
Issue number5
DOIs
Publication statusPublished - Nov 30 2015

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Briz, J. A., Nácher, E., Borge, M. J. G., Algora, A., Rubio, B., Dessagne, P., Maira, A., Cano-Ott, D., Courtin, S., Escrig, D., Fraile, L. M., Gelletly, W., Jungclaus, A., Le Scornet, G., Maréchal, F., Miehé, C., Poirier, E., Poves, A., Sarriguren, P., ... Tengblad, O. (2015). Shape study of the N=Z nucleus Kr 72 via β decay. Physical Review C - Nuclear Physics, 92(5), [054326]. https://doi.org/10.1103/PhysRevC.92.054326