Spectroscopic factors and strength distributions for the deeply bound orbitals in 40Ca obtained from the (p→, 2p) reaction at 392MeV

The cross sections and analyzing powers for the $^{40}\mathrm{Ca}$($\mathrm{pP\vec},2p$) reaction were measured. The strength distributions for the deep-hole states were obtained by a multipole decomposition analysis. The centroid energies and widths of the hole-state strengths of the $1p$ and $1{s}_{1/2}$ orbitals in $^{40}\mathrm{Ca}$ were determined. The spectroscopic factors for the deeply bound $1p$ and $1{s}_{1/2}$ orbitals were extracted as $49\ifmmode\pm\else\textpm\fi{}10%$ and $78\ifmmode\pm\else\textpm\fi{}14%$ of the sum-rule limits of the independent-particle shell model, respectively. A strong influence of the nucleon-nucleon correlations on the spectroscopic factors is suggested.