Accurate Four-Body Response Function with Full Final State Interaction: Application to Electron Scattering off 4He

Abstract

The longitudinal (e,e') response function of 4He is calculated precisely with full final state interaction. The explicit calculation of the four-body continuum states is avoided by the method of integral transforms. Precision tests of the response show the high level of accuracy. Non-relativistic nuclear dynamics are used. The agreement with experimental data is very good over a large energy range for all considered momentum transfers (q=300, 400, 500 MeV/c). Only at higher q the theoretical response overestimates the experimental one beyond the quasi-elastic peak.

10 pages, Latex (REVTEX), 4 Postscript figures, to appear in Phys. Rev. Lett

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