On the excitation energy of the ground state in the third minimum of 234U

A. Krasznahorkay, D. Habs, M. Hunyadi, D. Gassmann, M. Csatlós, Y. Eisermann, T. Faestermann, G. Graw, J. Gulyás, R. Hertenberger, H. J. Maier, Z. Máté, A. Metz, J. Ott, P. Thirolf, S. Y. Van Der Werf

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Abstract

The 233U(d,pf)234U reaction has been studied with high energy resolution. The observed fission resonances in the excitation energy range of 4.75 ≤E* ≤ 5.40 MeV were described as members of rotational bands with rotational parameters characteristic to the hyperdeformed nuclear shape ((Latin small letter h with stroke sign)2 /2θ = 2.1 ± 0.2 keV). Information on the K values of the bands has been obtained from fission fragment angular distribution measurements. The level density of the most strongly excited J = 3 states has been compared to the prediction of the back-shifted Fermi-gas formula and the energy of the ground state in the third minimum has been estimated to be EIII = 3.1 ± 0.4 MeV.

Original languageEnglish
Pages (from-to)15-21
Number of pages7
JournalPhysics Letters B
Volume461
Issue number1-2
DOIs
StatePublished - 1999
Externally publishedYes

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