Abstract
The He-4(e, e' p) reaction has been studied in a kinematic regime in which short-range correlations are expected to have a strong impact on the reaction strength. The measured cross sections exhibit a bump-shaped structure at missing energies corresponding to quasi-free knockout of two nucleons. The results of microscopic calculations, that account for meson-exchange currents, intermediate Delta -excitation and final-state interactions, reproduce the data satisfactorily. The calculations indicate that at small proton emission angles the cross section is dominated by knockout of a correlated nucleon pair.
Original language | English |
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Pages (from-to) | 6-12 |
Number of pages | 7 |
Journal | Physics Letters B |
Volume | 523 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 20 Dec 2001 |
Externally published | Yes |
Keywords
- ELECTRON-SCATTERING
- SPECTRAL-FUNCTION
- NUCLEON
- SYSTEMS