Abstract
Excited states of 11Be have been studied with several transfer reactions. Nine states between 3.96 and 25.0 MeV excitation energy show the characteristic energy dependence of a rotational band. The deduced large moment of inertia is consistent with a 2α structure with large deformation. In 12Be four high-lying states observed at 7.3, 10.7, 14.6, and 21.7 MeV in the reaction 9Be(15N,12N)12Be, also form a rotational band with almost the same moment of inertia; tentative spin assignments of 2+–8+ are used.
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From Yadernaya Fizika, Vol. 65, No. 4, 2002, pp. 635–638.
Original English Text Copyright © 2002 by Bohlen, von Oertzen, Blažević, Gebauer, Grimes, Kalpakchieva, Massey, Thummerer.
This article was submitted by the authors in English.
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Bohlen, H.G., von Oertzen, W., Blažević, A. et al. Structure studies of 11Be and 12Be: Observation of molecular rotational bands. Phys. Atom. Nuclei 65, 603–606 (2002). https://doi.org/10.1134/1.1471258
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DOI: https://doi.org/10.1134/1.1471258