Surface pion condensation in finite nuclei Original Research Article

We study the possible occurrence of finite pion mean field in finite nuclei in the relativistic mean field (RMF) theory. We calculate explicitly various N = Z closed shell nuclei with finite pion mean field in the RMF theory with the standard parameter set and the pion-nucleon coupling in free space. The finite pion mean field is introduced by breaking the parity symmetry of the intrinsic single-particle states. We demonstrate the actual occurrence and the property of the finite pion mean field.