6533b874fe1ef96bd12d653b

RESEARCH PRODUCT

Collective excitations in the transitional nuclei 163Re and 165Re

T. R. Davis-merryD. T. JossR. D. PageJ. SimpsonE. S. PaulF. A. AliL. BiancoR. J. CarrollB. CederwallI. G. DarbyM. C. DrummondSarah EeckhaudtS. ErtürkM. B. Gómez-hornillosTuomas GrahnPaul GreenleesB. HadiniaUlrika JakobssonPeter JonesRauno JulinSakari JuutinenSteffen KetelhutMatti LeinoPäivi NieminenMarkus NymanD. O'donnellJanne PakarinenPauli PeuraPanu RahkilaJ. P. RevillPanu RuotsalainenMikael SandzeliusP. J. SappleJan SarénB. SayğiCatherine ScholeyJuha SorriJ. ThomsonJuha Uusitalo

subject

Nuclear Theoryneutron-deficient nucleirheniumNuclear Experiment

description

Excited states in the neutron-deficient nuclei 163 75 Re88 and 165 75 Re90 were populated in the 106Cd(60Ni, p2nγ ) and 92Mo(78Kr, 3p2nγ ) fusion-evaporation reactions at bombarding energies of 270 and 380 MeV, respectively. γ rays were detected at the target position using the JUROGAM spectrometer while recoiling ions were separated in-flight by the RITU gas-filled recoil separator and implanted in the GREAT spectrometer. The energy level schemes for 163Re and 165Re were identified using recoil-decay correlation techniques. At low spin, the yrast bands of these isotopes consist of signature partner bands based on a single πh11/2 quasiproton configuration. The bands display large energy splitting consistent with the soft triaxial shape typical of transitional nuclei above N = 82. The configurations of the excited states are proposed within the framework of the cranked shell model. peerReviewed

http://urn.fi/URN:NBN:fi:jyu-201602021389