Electroinduced two-nucleon knockout and correlations in nuclei

Abstract

We present a model to calculate cross sections for electroinduced two-nucleon emission from finite nuclei. Short-range correlations in the wave functions and meson-exchange contributions to the photoabsorption process are implemented. Effects of the short-range correlations are studied with the aid of a perturbation expansion method with various choices of the Jastrow correlation function. The model is used to investigate the relative importance of the different reaction mechanisms contributing to the A(e,e${}^{\prime }$pn) and A(e,e${}^{\prime }$pp) process. Representative examples for the target nuclei ${}^{12}$C and ${}^{16}$O and for kinematical conditions accessible with contemporary high-duty cycle electron accelerators are presented. A procedure is outlined to calculate the two-nucleon knockout contribution to the semi-exclusive (e,e${}^{\prime }$p) cross section. Using this technique we investigate in how far semi-exclusive (e,e${}^{\prime }$p) reactions can be used to detect high-momentum components in the nuclear spectral function.

51 pages, Latex, uses epsf.sty and elsart.sty, 17 figures (in eps format)

References in corpus (1)

• Damping mechanisms of the Delta resonance in nuclei

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