Coulomb displacement energies, energy differenced and neutron skins
A. P. Zuker, J. Duflo, S. Lenzi, G. Martinez-Pinedo, A. Poves, J. Sanchez-Solano
Abstract
A Fock space representation of the monopole part of the Coulomb potential is presented. Quantum effects show through a small orbital term in l(l+1). Once it is averaged out, the classical electrostatic energy emerges as an essentially exact expression, which makes it possible to eliminate the Nolen-Schiffer anomaly, and to estimate neutron skins and the evolution of radii along yrast states of mirror nuclei. The energy differences of the latter are quantitatively reproduced by the monopole term and a schematic multipole one.
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