Superdeformed band in Sm142

G. Hackman, S. M. Mullins, J. A. Kuehner, D. Prévost, J. C. Waddington, A. Galindo-Uribarri, V. P. Janzen, D. C. Radford, N. Schmeing, D. Ward

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

Observation of γ-γ coincidences from the reaction Sn124(24Mg,xn) at 145 MeV has revealed a discrete superdeformed rotational band and evidence of a superdeformed continuum in Sm142. This result is consistent with cranked shell model calculations indicating shell gaps favorable to superdeformed structures in N=80, Z∼64 nuclei. It is proposed that the Sm142 band may be described by a proton hole in an Eu143 core. The dynamic moment of inertia of the superdeformed band is more constant than predicted by the model. This may be due to a strong residual interaction between a 61 proton intruder and aligning N=6 valence neutrons.

Original languageEnglish
Pages (from-to)R433-R436
JournalPhysical Review C - Nuclear Physics
Volume47
Issue number2
DOIs
StatePublished - 1993
Externally publishedYes

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