Study of the low spin states of Bi-208 through gamma-gamma spectroscopy

摘要

We studied the low spin structure of Bi-208 via gamma-gamma coincidence measurements using a sub-Coulomb Pb-208(p, n)Bi-208 reaction. This nucleus has one neutron hole and one proton particle relative to the doubly magic Pb-208 and therefore its spectrum directly depends on the particle-hole interaction. The available data on Bi-208 is re-evaluated using the data obtained in this measurement. Comparison of the measured energy levels with a shell model calculation with a realistic interaction is presented. (c) 2006 Elsevier B.V. All rights reserved.