Transition rates between two-body states inTl206,Bi208, andBi210

Abstract
Recoil-distance techniques have been used to measure mean lives of some two-hole, particle-hole, and two-particle states in Tl206, Bi208, and Bi210. A comprehensive comparison is presented of these results and all other known E2 and M1 matrix elements for two-body states with calculations. The calculations are made using wave functions of Ma and True and of Kuo and Herling together with known effective single-particle matrix elements. Reasonable agreement is obtained, particularly with the Kuo-Herling wave functions. From measurements of the 10 M1 transition rate in Tl206, the magnetic moment of the 3s12 proton-hole state in Tl207 is determined to be μ=(1.83±0.18)μN.