Abstract.
The influence of the mutual interaction between the two outgoing nucleons (NN-FSI) in electro- and photoinduced two-nucleon knockout from 16 O has been investigated perturbatively. It turns out that the effect of NN-FSI depends on the kinematics and on the type of reaction considered. The effect is generally larger in pp- than in pn-knockout and in electroinduced than in photoinduced reactions. In superparallel kinematics NN-FSI leads in the (e,e‘pp) channel to a strong increase of the cross-section, that is mainly due to a strong enhancement of the \(\Delta\)-current contribution. In pn-emission, however, this effect is partially cancelled by a destructive interference with the seagull current. For photoreactions NN-FSI is considerably reduced in superparallel kinematics and can be practically negligible in specific kinematics.
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Communicated by G. Orlandini
Received: 1 July 2003, Published online: 10 February 2004
PACS:
13.75.Cs Nucleon-nucleon interactions (including antinucleons, deuterons, etc.) - 21.60.-n Nuclear structure models and methods - 25.30.Fj Inelastic electron scattering to continuum
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Schwamb, M., Boffi, S., Giusti, C. et al. NN final-state interaction in two-nucleon knockout from 16 O . Eur. Phys. J. A 20, 233–244 (2004). https://doi.org/10.1140/epja/i2003-10139-6
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DOI: https://doi.org/10.1140/epja/i2003-10139-6