Meson exchange and nucleon polarizabilities in the quark model
arXiv:nucl-th/9807085 · doi:10.1103/PhysRevC.61.065202
Abstract
Modifications to the nucleon electric polarizability induced by pion and sigma exchange in the q-q potentials are studied by means of sum rule techniques within a non-relativistic quark model. Contributions from meson exchange interactions are found to be small and in general reduce the quark core polarizability for a number of hybrid and one-boson-exchange q-q models. These results can be explained by the constraints that the baryonic spectrum impose on the short range behavior of the mesonic interactions.
11 pages, 1 figure added, expanded discussion