β-decay spectroscopy of neutron-rich 160,161,162Sm isotopes

Neutron-rich 160,161,162 Sm isotopes have been populated at the RIBF, RIKEN via β first time. β -coincident γ rays were observed in all three isotopes including γ rays from the isomeric decay of 160 Sm and 162 Sm. The isomers in 160 Sm and 162 Sm have previously been observed but have been populated via β decay for the first time. The isomeric state in 162 Sm is assigned a configuration based on the decay pattern. The level schemes of 160 Sm and 162 Sm are presented. The ground states in the parent nuclei 160 Pm and 162 Pm are both assigned a 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 160 Pm, 161 Pm, and 162 Pm, and the isomeric state in 162 Sm