CoincidenceO16(e→,e’x) reactions with polarized electrons at low momentum transfer in self-consistent random-phase approximation theory

Coincidence ${}_{}{}^{16}{}_{}{}^{}(\mathrm{e}\to$,e’x) reactions with polarized electrons have been investigated in the one-photon-exchange formalism. Electromagnetic transition amplitudes are decomposed into multipoles. The nuclear energy continuum is obtained in the framework of a self-consistent random-phase approximation theory with a Skyrme III interaction. We focus our attention on the electron kinematics ${\epsilon }_i$=130 MeV, θ=50°, and on the nuclear excitation energies ω=21 and 35 MeV. The polarization structure functions $W_{\mathrm{LT}\mathcal{’}}$ are discussed in parallel with angular distributions and asymmetries for the two hole states: 1$p_{1/2}^{\mathrm{-}1}$ and 1$p_{3/2}^{\mathrm{-}1}$. At 21 MeV we explore the properties of giant multipole resonances, whereas at 35 MeV, we show theoretical predictions for the competing knockout and semidirect reaction mechanisms. The neutron yield predicted in ${}_{}{}^{16}{}_{}{}^{}(\mathrm{e}$,e’n) reactions is connected with the presence of random-phase approximation correlations in the nuclear energy continuum. Comparison is made between random-phase-approximation–Skyrme-III results and Novosibirsk experimental data.