Abstract
The first measurement of the reaction He3(γ→,p)X using linearly polarized photons is reported. Cross sections and beam-polarization asymmetries for θplab=60°–100° and Eγ=195–304 MeV are compared with a microscopic calculation which includes one-, two-, and three-nucleon absorption mechanisms. One- and two-nucleon absorption alone fails to describe the data at low proton momenta. The inclusion of three-nucleon absorption significantly improves the comparison with the measured cross sections. However, some features of the asymmetry distributions are not explained.Received 9 August 1993DOI:https://doi.org/10.1103/PhysRevLett.72.617©1994 American Physical Society
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