Core polarisation effect on the 3p 1/2, 3p 3/2, 2f 5/2, 2f 7/2 and 1i 13/2 proton states of209Bi

Abstract

The weak fragments of the 3p1/2, 3p3/2, 2f5/2, 2f7/2 and 1i13/2 proton states of209Bi as seen in the208Pb (3He,d) reaction can be explained with the coupling of the renormalised proton states and the vibrational states of208Pb. The energies of the zerothorder proton shell-model states as well as the collective admixtures of the weak fragmented proton states of209Bi have been deduced from the core-particle coupling model.