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Short-range correlations and meson exchange currents in photonucleon emission

M. Anguiano·G. Co'·A. M. Lallena·S. R. Mokhtar
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Abstract

One-nucleon emission processes induced by photon absorption are studied by considering short-range correlations effects. At energies above the giant resonance region the validity of the direct knock-out model has been tested by comparison with continuum Random Phase Approximation results. Nucleon re-scattering effects have been considered by using an optical potential. The role of the electromagnetic convection, magnetization and meson exchange currents has been investigated as a function of both excitation energy and momentum transfer. The short-range correlation effects have been studied by using various correlation functions. We found that the nucleon photo-emission cross section is rather sensitive to the presence of short-range correlations at large values of nucleon emission angle. In this region, however, the effects of meson exchange currents are even larger than those produced by short-range correlations.

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M. Anguiano, G. Co', A. M. Lallena, S. R. Mokhtar. 2002-01-10. Short-range correlations and meson exchange currents in photonucleon emission. https://doi.org/10.1006/aphy.2002.6228

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