High-spin terminating bands formed from successive particle-hole excitations across closed shells

Abstract

High spin states in Zn and Dy isotopes with two protons outside the closed shells at Z=28 and Z=64, respectively, are discussed. Bands terminating at higher and higher spin values are formed from successive proton excitations across these shells. These bands show very different features depending on the number of excited particles. Very good agreement with experiment is obtained. Special emphasis is put on the formation of M1-bands in configurations with one hole in the Z=64 core.

Invited talk at "High Spin Physics 2001", see http://www.fuw.edu.pl/~hs2001/, to be published in Acta Physica Polonica B