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COLLECTIVE EXCITATIONS IN CD-106
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1994 (English)In: Nuclear Physics A, ISSN 0375-9474, E-ISSN 1873-1554, Vol. 571, no 2, 393-412 p.Article in journal (Refereed) Published
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Abstract [en]

High Spin states in 106Cd were populated by the reactions Zr-94(O-17, 5n) and Ge(S-32, 4n) at 80 MeV and at 148 MeV, respectively. The gamma-decay was studied by gamma-spectroscopic methods using the Nordball multi-detector army. Protons and alpha-particles were detected in particle detector system, thus selecting the neutron channel. The experiment included gamma-ray yields, gammagamma-coincidences and gamma-ray angular relation measurements. Collective bands extending up to spin 26+, 20- and 21-, have been observed in 106Cd. A new lifetime Of 11(-3)+6 ns for the 16+ state at 7118.7 keV has been found. Both total Routhian surfaces and spin diabatic surfaces have been calculated and used for assigning quasiparticle configurations to the bands. The (+, 0) band is assigned as a nuh11/2(2) configuration below I = 16+ and at higher spins suggested to be built on a pig9/2(2)nuh11/2(2) configuration. The large hindrance observed for the decay from the 16+ state supports the latter assignment. With the alignment of the nuh11/12(2) pair the deformation is predicted to change from (epsilon2,gamma) = (0.13,-2-degrees) to (0.17, 4-degrees). The configuration of the negative parity bands is assigned as either a nuh11/2(1)d5/2(1) or a nuh11/2(1)(g7/2xd5/2)1, With (epsilon2, gamma) = (0.14,9-degrees.

Place, publisher, year, edition, pages
1994. Vol. 571, no 2, 393-412 p.
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Subatomic Physics
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URN: urn:nbn:se:kth:diva-178686DOI: 10.1016/0375-9474(94)90067-1ISI: A1994NG97700010OAI: oai:DiVA.org:kth-178686DiVA: diva2:878210
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NR 2015

Available from: 2015-12-08 Created: 2015-12-08 Last updated: 2017-12-01Bibliographically approved

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Cederwall, Bo

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