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Reaction mechanism and characteristics of T20 in d + 3He backward elastic scattering at intermediate energies

M. Tanifuji, S. Ishikawa, Y. Iseri, T. Uesaka, N. Sakamoto, Y. Satou, K. Itoh, H. Sakai, A. Tamii, T. Ohnishi, K. Sekiguchi, K. Yako, S. Sakoda, H. Okamura, K. Suda, T. Wakasa

nucl-tharXiv:nucl-th/9911044

Abstract

For backward elastic scattering of deuterons by 3He, cross sections σand tensor analyzing power T20 are measured at Ed=140-270 MeV. The data are analyzed by the PWIA and by the general formula which includes virtual excitations of other channels, with the assumption of the proton transfer from 3He to the deuteron. Using 3He 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 T20 data. Theoretical predictions on T20, Kyy (polarization transfer coefficient) and Cyy (spin correlation coefficient) are provided up to GeV energies.

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