Reaction mechanism and characteristics of T-20 in d+He-3 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 dat a are analyzed by the plane wave impulse approximation (PWIA) and by the ge neral formula which includes virtual excitations of other channels, with th e assumption of the proton transfer from He-3 to the deuteron. Using He-3 w ave functions calculated by the Faddeev equation, the PWIA describes global features of the experimental data, while the virtual excitation effects ar e important for quantitative fits to the T-20 data. Theoretical predictions on T-20, K-y(y) (polarization transfer coefficient), and Cyy (spin correla tion coefficient) are provided up to GeV energies.