The measurement of recoiling nucleus momentum distributions in (e,e'p) reactions has been performed for p-hole states in 12C and 16O under extended kinematical conditions. The analysis of the experimental data has been performed without requiring the usual factorization of the cross section. The sensitivity of the data and of the analysis for deducing bound and scattering proton states is discussed.

Electroexcitation of the singlet $S$ state of the deuteron has been measured for the range of momentum transfer ${q}^{2}=6\ensuremath{-}19$ ${\mathrm{fm}}^{\ensuremath{-}2}$, where meson-exchange current contributions dominate the cross section.

A detailed analysis has been made on the recent (e,e'p) experiment on 16O for the p-shell protons. The absorption factors and the occupation numbers can be largely influenced by the effect of spin orbit components in the optical potential. Different kinematical conditions have been studied experimentally and theoretically on 12C and 16O to see the influence of final state interaction and factorization of the cross section.

Deep-inelastic electron scattering from 12C was measured at 60°, 90°, 130° and 145° until 560 MeV incident electron energy. Longitudinal-transverse separation was achieved for ¦q2μ¦ < 6 fm−2 and energy-loss ω < 360 MeV. The longitudinal sum rule exhibits 80 % of the strength predicted by single particle model. The measured cross section between the quasi-elastic peak and the free Δ peak is compared to different theoretical models. Mesonic exchange current in proton-neutron pairs seems to play an important role.

The nucleon momentum distribution in the deuteron has been determined up to 340 MeV/c by measuring the d(e, e′p)n reaction at an incident electron energy of 500 MeV. The data are well described even above p = 200 MeV/c by the most recent deuteron wave functions, in contrast with previous (e, e′p) and (p, 2p) results.

An experimental set-up consisting of two high performance spectrometers is operating at the Saclay 600 MeV Linear Accelerator for electron scattering experiments with or without the detection of an emitted charged particle in coincidence. We give here the essential facts about the spectrometers, and the detection systems composed of multiwire proportional chambers and scintillation and Cerenkov counters. Very good rejection of background makes it possible to measure cross-sections as low as 10−4 nb sr−1 with 2.5 × 10−4 energy resolution in (e, e′) experiments. For coincidence (e, e′p) measurements at 500 MeV incident electron energy, the lowest cross-section measured is 5 × 10−3 nb MeV−2 sr−2, and the missing energy resolution is 0.8 MeV.

A systematic study of the deep-inelastic electron-scattering response function of $^{12}\mathrm{C}$ has been carried out at scattering angles of 60\ifmmode^\circ\else\textdegree\fi{} and 130\ifmmode^\circ\else\textdegree\fi{} and electron energies between 160 and 520 MeV. A pronounced transverse strength, the origin of which is not understood, is found in the region between the quasielastic and the $N$ peak.

The (e, e'p) reaction on 12C, 28Si, 40Ca and 58Ni has been measured at 497 MeV incident electron energy. The experiment covered the region E ≦ 80 MeV for the separation energy and P ≦ 250 MeV/c for the recoil momentum. Cross sections, calculated in the distorted wave impulse approximation, have been utilized in a shell-model expansion of the spectral function. Average separation and kinetic energies of protons in individual shells are extracted from the data. The validity of Koltun's sum rule is discussed.

Experimental values for proton mean kinetic and removal energies were extracted from (e,e'p) results on $sup 12$C, $sup 28$Si, $sup 40$Ca and $sup 58$Ni, in the framework of DWIA. Occupation numbers obtained generally agree with those of the shell model. (FR)

Distorted wave impulse approximation calculations of $^{12}\mathrm{C}(e, {e}^{\ensuremath{'}}p)$ cross sections show no sensitivity to short range correlations in the range of recoil momenta covered by the data. For this result, which is in contrast to previous calculations, it is crucial to use correlated wave functions of correct rms radii on which the quality of the fit depends critically.NUCLEAR REACTION $^{12}\mathrm{C}(e, {e}^{\ensuremath{'}}p)$; $E=500$ MeV; DWIA calculation.

A very-high momentum-transfer ($q=780$ MeV/c), elastic electron-scattering experiment on $^{58}\mathrm{Ni}$ has been performed using the 600-MeV linac of Saclay. The charge density, extracted from ($e, e$) and muonic-x-ray data, exhibits considerably less structure than predicted by Hartree-Fock calculations.