Highly deformed structures in [Formula Presented]

N. J. O’Brien, R. Wadsworth, D. E. Archer, P. Fallon, I. M. Hibbert, D. T. Joss, D. R. LaFosse, P. J. Nolan, E. S. Paul, J. Pfohl, M. A. Riley, D. G. Sarantites, R. Wyss

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

High-spin states have been populated in the neutron-deficient [Formula Presented] nuclei via the [Formula Presented] reaction at a beam energy of 180 MeV. Transitions within the Sm nuclei were enhanced by using the Microball charged particle array and [Formula Presented]-ray de-excitation was studied using Gammasphere. A new highly deformed band has been observed in the data and assigned to [Formula Presented] Comparison of the properties of the new band with Woods-Saxon cranking calculations suggests that it is built upon a [Formula Presented] configuration. The band shows evidence for an interaction at [Formula Presented] This has tentatively been interpreted as resulting from a crossing between the [Formula Presented] signatures of the [Formula Presented] and [Formula Presented] proton orbitals. The previously known [Formula Presented] intruder band in [Formula Presented] was also observed and extended to higher rotational frequency. Both structures show good agreement with extended total Routhian surface calculations.

Original languageEnglish
Pages (from-to)3212-3218
Number of pages7
JournalPhysical Review C - Nuclear Physics
Volume58
Issue number6
DOIs
StatePublished - 1998
Externally publishedYes

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