Neutron-rich 160,161,162Sm isotopes have been populated at the RIBF, RIKEN via β decay for the first time. β-coincident γ rays were observed in all three isotopes including γ rays from the isomeric decay of 160Sm and 162Sm. The isomers in 160Sm and 162Sm have previously been observed but have been populated via β decay for the first time. The isomeric state in 162Sm is assigned a 4- ν7/2 +⊗ν1/2- configuration based on the decay pattern. The level schemes of 160Sm and 162Sm are presented. The ground states in the parent nuclei 160Pm and 162Pm are both assigned a 6- ν7/2+ ⊗ π5/2 -  configuration based on the population of states in the daughter nuclei. Blocked BCS calculations were performed to further investigate the spin-parities of the ground states in 160Pm, 161Pm, and 162Pm, and the isomeric state in 162Sm.
|Journal||EPJ Web of Conferences|
|Publication status||Published - Sept 5 2016|
|Event||2015 Heavy Ion Accelerator Symposium, HIAS 2015 - Canberra, Australia|
Duration: Sept 14 2015 → Sept 18 2015
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)