Abstract
The elastic scattering of the halo nucleus $^{6}\mathrm{He}$ from a proton target at 717 MeV/nucleon is investigated within three different multiple-scattering formulations of the total transition amplitude. The factorized impulse approximation (FIA) and the fixed scatterer approximation (FSA) of the multiple-scattering expansion are used to evaluate accurately the single-scattering terms and to test the validity of a few-body Glauber approach. The latter also includes terms beyond single scattering and the importance of these terms is investigated. The differential cross section is calculated for proton scattering from $^{6}\mathrm{He}$ at 717 MeV in inverse kinematics and compared with recent data.
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