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

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.

Two sentences added. To appear in Phys. Rev. Letters

References in corpus (6)

• An accurate nucleon-nucleon potential with charge-independence breaking
• Feynman Graphs and Generalized Eikonal Approach to High Energy Knock-Out Processes
• Measurement of the 3He(e,e'p)pn reaction at high missing energies and momenta
• Calculations of the Exclusive Processes 2H(e,e'p)n, 3He(e,e'p)2H and 3He(e,e'p)(pn) within a Generalized Glauber Approach
• Exclusive Electro-Disintegration of 3He at High Q2: I. Generalized Eikonal Approximation
• The Quasielastic 3He(e,e'p)d Reaction at Q^2 = 1.5 GeV^2 for Recoil Momenta up to 1 GeV/c

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• Comparing proton momentum distributions in $A=2$ and 3 nuclei via ${}^2$H ${}^3$H and ${}^3$He $(e,e^{\prime }p)$ measurements
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• The ${}^3$He$(e,e^{\prime }p{)}^2$H and ${}^4$He$(e,e^{\prime }p{)}^3$H reactions at high momentum transfer
• High precision measurements of alpha_s at the future EIC
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• Neutron Spin Structure from e-3He Scattering with Double Spectator Tagging at the Electron-Ion Collider
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