6533b855fe1ef96bd12b1a98

RESEARCH PRODUCT

Probing structural changes in the very neutron-deficient Os isotopes with recoil-decay tagging

A. KeenanM. A. BentleyH. KankaanpääPaivi NieminenD. M. CullenMichael TaylorMichael TaylorC. J. BartonBaharak HadiniaJ. SimpsonTorbjörn BäckRamon WyssC. ScholeyS. JuutinenJ. UusitaloJ. F. C. CocksM. MuikkuPasi KuusiniemiA.-p. LeppänenR. JulinPeter M. JonesS. J. WilliamsK. HelariuttaD. R. WisemanRobert PageP. RahkilaT. GrahnHeikki KettunenD. E. AppelbeD. D. WarnerS. L. KingD. T. JossE. S. PaulS. EeckhaudtM. LeinoJanne PakarinenKarin LagergrenKarin LagergrenBo CederwallN. AmzalA. SaveliusPaul Greenlees

subject

PhysicsNuclear and High Energy PhysicsSpectrometerIsotopeProtonYrastNuclear Theorychemistry.chemical_elementGermaniumNuclear physicsRecoilchemistryNeutron numberNeutronAtomic physicsNuclear Experiment

description

In recent years, the exploitation of the iecoil-decay tagging (RDT) technique with,large arrays of germanium detectors has revealed much information about the structure of heavy nuclei approaching the proton drip line. The yrast bands of the N <= 93 osmium isotopes have been identified in a campaign of tagging experiments using various spectrometer arrays coupled to the RITU gas-filled separator based at the University of Jyvaskyla. Trends in the yrast state excitation energies have indicated a transition from gamma-soft triaxial to near-spherical shapes with decreasing neutron number. Recent experimental results for Os-162 obtained with the JUROGAM and GREAT spectrometers also indicate the importance of configurations involving the h(9/2) neutron states as the N = Z 82 shell gaps are approached.

https://doi.org/10.1088/0954-3899/31/10/039