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The cross section, the deuteron vector Aₘ^d and tensor analyzing powers A₈₉, the polarization transfer coefficients K₈₉^{y^'}, and the induced polarization P^{y^'} were measured for the dp elastic scattering at 270 MeV. The cross section and Aₘ^d are well reproduced by Faddeev calculations with modern data-equivalent nucleon-nucleon forces plus the Tucson-Melbourne three-nucleon force. In contrast, A₈₉, K₈₉^{y^'}, or P^{y^'} are not described by such calculations. These facts indicate the deficiencies in the spin dependence of the Tucson-Melbourne force and call for extended three-nucleon force models.
Sakai et al. (Mon,) studied this question.