dorsal/arxiv
View SchemaOn the Interpretation of the Processes 3He(e,e'p)2H and 3He(e,e'p)(pn) at High Missing Momenta
| Authors | C. Ciofi degli Atti, L. P. Kaptari |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0502045 |
| URL | https://arxiv.org/abs/nucl-th/0502045 |
| DOI | 10.1103/PhysRevLett.95.052502 |
| Journal | Phys.Rev.Lett. 95 (2005) 052502 |
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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"abstract": "It is shown that the effects of the Final State Interaction (FSI) in the\nexclusive processes 3He(e,e\u0027p)2H and 3He(e,e\u0027p)(pn), can be successfully\ntreated in terms of a Generalized Eikonal Approximation (GEA), based upon the\ndirect calculation of the Feynman diagrams describing the rescattering of the\nstruck nucleon. As a matter of fact, using realistic three-body wave functions\ncorresponding to the AV18 interaction, the results of our parameter free\ncalculation exhibits a very satisfactory agreement with recent experimental\ndata from Jlab covering the region of missing momentum and energy with p_m \u003c\n1.0 GeV/c and E_m \u003c 100 MeV. It is demonstrated that the missing momentum\ndependence of the experimental cross section of the process 3He(e,e\u0027p)2H is\nmainly governed at p_m \u003c 0.2 GeV/c by the Plane Wave Impulse Approximation\n(PWIA), at 0.2 \u003c p_m \u003c 0.6 GeV/c by the single rescattering FSI, and at 0.6\nGeV/c \u003c p_m by the double rescattering FSI.",
"arxiv_id": "nucl-th/0502045",
"authors": [
"C. Ciofi degli Atti",
"L. P. Kaptari"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevLett.95.052502",
"journal_ref": "Phys.Rev.Lett. 95 (2005) 052502",
"title": "On the Interpretation of the Processes 3He(e,e\u0027p)2H and 3He(e,e\u0027p)(pn) at High Missing Momenta",
"url": "https://arxiv.org/abs/nucl-th/0502045"
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