Role of the L=1 Baryon Excitation in the Giant Electric Dipole Resonances

摘要

A simple estimate, based on the quark model, is made of the effect of the odd parity baryon resonances N* and delta * on the vector dipole excitations in the nucleus. Although the coupling between the nuclear and baryon L = 1 degrees of freedom seems to be quite more relevant for the vector dipole fields than for the corresponding axial-vector ones, it still represents a minor effect. (Atomindex citation 16:009015)