[en] The angular distributions of the differential cross sections and analyzing powers are presented for the ¹²C(p,π⁺)¹³C( reaction leading to the ground state of ¹³C as well as some of the ¹³C( low-lying excited states. The analyzing powers for some of the transitions exhibit a considerable energy dependence while for other transitions they remain relatively unchanged, thus indicating a dynamic sensitivity of the analyzing power dependent on nuclear structure. Comparisons of theoretical predictions for A/sub N/0 and dsigma/dΩ, based on microscopic two-nucleon models, with our results indicate that substantial differences between theory and experiment still exist for A(p,π⁺)A+1 type of reactions