ElectroexcitationofLow-LyingParticle-HoleRPAStatesof16OwithWBPInteraction

The nuclear structure of 16 O is studied in the framework of the particle–hole random phase approximation(ph RPA). The Hamiltonian is diagonalized within a model space with particle orbits {1d5/2,1d3/2, and 2s1/2} and the hole orbits {1p3/2and 1p1/2} using Warburton and Brown interaction WBP. The ph RPA calculations are tested, by comparing the electron scattering form factors with the available experimental data. The results of electron scattering form factors and reduced transition strength for the states: 1-, T = 0(7.116 Me V); 2-, T = 1(12.968 Me V); 2-, T = 1(20.412 Me V); and 3-, T = 0(6.129 Me V) are interpreted in terms of the harmonic-oscillator(HO) wave functions of size parameter b. The occupation probabilities of the single particle and hole orbits are calculated. The spurious states are removed by adding the center of mass(CM) correction to the nuclear Hamiltonian. A comparison with the available experiments data is presented.