decay of the ground state and of a low-lying isomer in Bi

Andel, B.*; Andreyev, A. N.; 57 of others*

A detailed -decay study of the low- and high-spin states in Bi has been performed at the ISOLDE Decay Station at the CERN-ISOLDE facility. In total, 48 new levels and 83 new transitions in the -decay daughter Po were identified. Shell-model calculations for excited states in Bi and Po were performed using the H208 and the modified Kuo-Herling particle effective interactions. Based on the experimental observations and the shell-model calculations, the most likely spin and parity assignments for the -decaying states in Bi are (3) and (8), respectively.