Tensor analysing power of the (d, ²He) reaction on ¹²C at 70 MeV

The tensor analysing power A_yy was measured for the ¹²C(d, ²He)¹²B reaction at E_d=70 MeV. A DWBA calculation well reproduces the experimental data for Delta l=0 transition to the 1⁺ ground state of ¹²B. For the transition to the 2^- excited state via Delta l=1, the predicted curve assuming 2^- is closer to the data than that assuming either 0 ^- or 1^-. The same calculation also favours 2^- in analysing the previous data on the vector analysing power. These results suggest the usefulness of the simultaneous measurements of vector and tensor analysing powers. The dependence of A_yy on the final-state spin predicted by the present DWBA calculation is similar to that predicted by the PWIA theory.