Charged particle feeding of hyperdeformed nuclei in the A=118-126 region
2006 (English)In: Physica Scripta, ISSN 0031-8949, E-ISSN 1402-4896, Vol. T125, 108-114 p.Article in journal (Refereed) Published
A breakthrough was recently obtained in the analysis of the so-called Hyper-Long-HyperDeformed (HLHD) experiment made at the EUROBALL-IV gamma-detector array (EB). The Ni-64 + Ni-64 double right arrow Ba-128* fusion reaction was studied at E-beam = 255 and 261 MeV, reaching the highest angular momentum that the compound nuclei can accommodate. To date no discrete HD rotational bands have been identified. However, rotational patterns in the form of ridge-structures in three-dimensional (3D) rotational mapped spectra are identified with dynamic moments of inertia J((2)) ranging from 71 to 111h(2) MeV-1 in 12 different nuclei selected by charged particle- and/or gamma-gating. The four nuclei, Te-118, Cs-124, Cs-125 and Xe-124 found with moment of inertia J((2)) >= 100h(2) MeV-1, are most likely hyperdeformed, the remaining nuclei with smaller values of J((2)), are considered to be superdeformed, in qualitative agreement with recent theoretical calculations.
Place, publisher, year, edition, pages
2006. Vol. T125, 108-114 p.
IdentifiersURN: urn:nbn:se:kth:diva-15834DOI: 10.1088/0031-8949/2006/T125/025ISI: 000238911500027ScopusID: 2-s2.0-34548841957OAI: oai:DiVA.org:kth-15834DiVA: diva2:333876
QC 20100525 QC 201109272010-08-052010-08-052012-09-19Bibliographically approved