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On the Interpretation of the Processes 3He(e,e'p)2H and 3He(e,e'p)(pn) at High Missing Momenta

C. Ciofi degli Atti·L. P. Kaptari
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Abstract

It is shown that the effects of the Final State Interaction (FSI) in the exclusive processes 3He(e,e'p)2H and 3He(e,e'p)(pn), can be successfully treated in terms of a Generalized Eikonal Approximation (GEA), based upon the direct calculation of the Feynman diagrams describing the rescattering of the struck nucleon. As a matter of fact, using realistic three-body wave functions corresponding to the AV18 interaction, the results of our parameter free calculation exhibits a very satisfactory agreement with recent experimental data from Jlab covering the region of missing momentum and energy with p_m < 1.0 GeV/c and E_m < 100 MeV. It is demonstrated that the missing momentum dependence of the experimental cross section of the process 3He(e,e'p)2H is mainly governed at p_m < 0.2 GeV/c by the Plane Wave Impulse Approximation (PWIA), at 0.2 < p_m < 0.6 GeV/c by the single rescattering FSI, and at 0.6 GeV/c < p_m by the double rescattering FSI.

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C. Ciofi degli Atti, L. P. Kaptari. 2005-06-25. On the Interpretation of the Processes 3He(e,e'p)2H and 3He(e,e'p)(pn) at High Missing Momenta. https://doi.org/10.1103/physrevlett.95.052502

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