Microscopic Structure of the Magnetic High-Spin States inPb208

Abstract

Consideration of both the effect of the one-pion and $\ensuremath{\rho}$-meson exchange potentials in the particle-hole interaction and the inclusion of 2p-2h configurations explains why the magnetic high-spin states discovered recently in $^{208}\mathrm{Pb}$ are close to the shell-model energies although the cross sections are only 50% of the single-particle estimate.