BREAKUP OF HE-3 WITH 59.6 MEV VECTOR-POLARIZED DEUTERONS AT DP QUASI-FREE-SCATTERING CONDITIONS

The He-3 breakup reaction has been studied with 59.6 MeV vector-polari zed deuterons at dp quasifree-scattering (QFS) conditions. In the coin cidence energy spectra, large bumps corresponding to the QFS were obse rved. The calculation in the simple plane-wave impulse approximation ( PWIA) qualitatively reproduces the energy spectra, but for the absolut e cross sections, the ratio of the experimental values to the calculat ed values in the PWIA is about 0.27. As for the analyzing powers, the experimental values are greatly reduced as compared with the dp elasti c-scattering data. The multiple-scattering effect has been investigate d by a calculation taking account of the effects of double-scattering terms on the cross sections and the analyzing powers.