Reaction mechanism and characteristics of T20 in d+3He backward elastic scattering at intermediate energies -: art. no. 024602

For backward elastic scattering of deuterons by He-3, cross sections sigma, and tensor analyzing power T-20 are measured at E-d = 140-270 MeV. The data are analyzed by the plane wave impulse approximation (PWIA) and by the general formula which includes virtual excitations of other channels, with the assumption of the proton transfer from He-3 to the deuteron. Using He-3 wave functions calculated by the Faddeev equation, the PWIA describes global features of the experimental data, while the virtual excitation effects are important for quantitative fits to the T-20 data. Theoretical predictions on T-20, K-y(y) (polarization transfer coefficient), and Cyy (spin correlation coefficient) are provided up to GeV energies.