Possible evidence for particle-hole intruder analog multiplets in the Pb region

Abstract
It is suggested that collective bands in Pb186,188 built on a 0+ intruder configuration, belong to a four-particle–four-hole (4p-4h) intruder analog spin I=2 multiplet. The multiplet structure is presented and a suggestion for the energy of the 2p-2h 0+ intruder bandhead in Pb186,188 is made.