High-angular-momentum structures in Zn-64
2004 (English)In: Physical Review C. Nuclear Physics, ISSN 0556-2813, E-ISSN 1089-490X, Vol. 69, no 3, 034330- p.Article in journal (Refereed) Published
High-angular-momentum states in Zn-64 were populated in the Ca-40(Si-28,4p) reaction at a beam energy of 122 MeV. Evaporated, light, charged particles were identified by the Microball, while gamma rays were detected using the Gammasphere array. The main focus of this paper is on two strongly coupled, collective bands. The yrast band, which was previously known, has been linked to lower-lying states establishing the excitation energies and angular momenta of in-band states for the first time. The newly identified excited band decays to the yrast band but firm angular-momentum assignments could not be made. In order to interpret these structures cranked-Nilsson-Strutinsky calculations have been performed. The calculations have been extended to account for the distribution of nucleons within a configuration. The yrast collective band is interpreted as based on the pi(f(7/2))(-1)(p(3/2)f(5/2))(2)(g(9/2))(1)nu(p(3/2)f(5/2))(4)(g(9/2))(2) configuration. There are several possible interpretations of the second band but it is difficult to distinguish between the different possibilities.
Place, publisher, year, edition, pages
2004. Vol. 69, no 3, 034330- p.
fusion-evaporation reactions, rotational bands, gamma-ray, high-spin, superdeformed band, channel-selection, decay, spectroscopy, collectivity, gammasphere
IdentifiersURN: urn:nbn:se:kth:diva-23299DOI: 10.1103/PhysRevC.69.034330ISI: 000220607200058ScopusID: 2-s2.0-84862371396OAI: oai:DiVA.org:kth-23299DiVA: diva2:341997
QC 20100525 QC 201110272010-08-102010-08-102011-10-27Bibliographically approved