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          Institute: MPI für Kernphysik     Collection: Nuclear Physics and Nuclear Probes     Display Documents

ID: 30422.0, MPI für Kernphysik / Nuclear Physics and Nuclear Probes
Backbending region study in Dy-160,Dy-162 using incomplete fusion reactions
Authors:Jungclaus, A.; Binder, B.; Dietrich, A.; Härtlein, T.; Bauer, H.; Gund, C.; Pansegrau, D.; Schwalm, D.; Egido, J. L.; Sun, Y.; Bazzacco, D.; de Angelis, G.; Farnea, E.; Gadea, A.; Lunardi, S.; Napoli, D. R.; Rossi-Alvarez, C.; Ur, C.; Hagemann, G. B.
Date of Publication (YYYY-MM-DD):2002-07
Title of Journal:Physical Review C
Journal Abbrev.:Phys. Rev. C
Issue / Number:1
Start Page:014312
End Page:014312
Sequence Number of Article:014312
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:The incomplete fusion reactions Li-7-->Gd-158,Gd-160 at beam energies of 8 MeV/nucleon have been used to study the first band crossing region in the heavy stable Dy isotopes Dy-160,Dy- 162. The gamma rays were detected in the GASP spectrometer in coincidence with fast charged particles detected in the ISIS silicon ball. We succeeded to observe the first backbending in Dy-162 at a crossing frequency of (h) over bar omegaapproximate to350 keV, a value much higher than expected from other nuclei in this mass region. Moreover, for the first time in a nucleus with a very large interaction strength, the yrare band in Dy- 160 could be established up to rather high spin (I=20 (h) over bar) allowing for a precise determination of the interaction strength between the ground state and the Stockholm band, \Vg- S\ =219(2) keV. Together with \Vg-S\=14(2) keV determined for the corresponding interaction in Dy-162, a full oscillation of the strengths from one node to the next could be observed within an isotopic chain. In addition to the ground state and Stockholm bands, many other known bands in the two nuclei were considerably extended to higher spin and the experimental results are compared to calculations within the projected shell model.
External Publication Status:published
Document Type:Article
Affiliations:MPI für Kernphysik/Group D. Schwalm/Nuclear Gamma-Ray Spectroscopy (H. Scheit)
External Affiliations:CSIC, Inst Estructura Mat, E-28006 Madrid, Spain; Univ Autonoma Madrid, Dept Fis Teor, E-28049 Madrid, Spain; Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA; Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy; Univ Padua, Dipartimento Fis, Padua, Italy; Niels Bohr Inst, DK-2100 Copenhagen, Denmark
Identifiers:ISI:000177529700024 [ID No:1]
ISSN:0556-2813 [ID No:2]
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