Analisys of $0^{-}$ excitations in ${}^{16}$O from inelastic scattering of polarized protons of intermediate energy

Comparison of the calculation of inelastic proton scattering from ${}^{16}$O with excitation of $0^{-}$ levels with $T=0,1$ with accessible experimental data at different energies of incident protons is presented. The role of antisymmetrization in reaction formalism and the manifestation of the pion condensation in nuclear are discussed. To obtain more solid conclusions on these points more experimental data are needed.