Abstract
By means of the reaction40Ca (36Ar, 3p), the band structure of73Br connected with the g9/2 single-particle proton orbit has been investigated up to Iπ=33/2+. In contrast to the core spectrum in72Se, which is dominated by the coexistance of different shapes, the nucleus73Br features rotational bands with slowly increasing moments of inertia. Their deformation β2=0.40(2) has been deduced from recoil distanc lifetime measurements.
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Supported by the German Bundesministerium für Forschung und Technologie
The authors are indepted to W.Nazarevicz and R. Bengtsson for stimulating discussions; they also gratefully acknowledge the help of C.J. Lister and his group in one of the experiments.
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Wörmann, B., Heese, J., Lieb, K.P. et al. Rotational bands in73Br: The disappearance of shape coexistence in72Se. Z Physik A 322, 171–172 (1985). https://doi.org/10.1007/BF01412032
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DOI: https://doi.org/10.1007/BF01412032