QUALITATIVE DETAILS OF ELECTRON-ELECTRON CORRELATION OF HIGHER DOUBLY-EXCITED P-2S+1(0) HELIUM STATES

This paper investigates the third series of the 2s+1p0 helium states. The anisotropism of the electronic distribution is presented, the partial-wave compositions of the states are compared with each other, and the angular correlation is intuitively shown by the shape-density. Two types of radial-radial correlation, namely, the ''gradually push'' and the ''sudden transition'', have been identified and the approximate symmetry with respect to the interchange of r1 and r2 has been evaluated.