[en] J/sup pi/=3/2^- levels to which L=0 (p,t) transitions are observed have been identified in ⁷³As at 0 (100%), 396 (2.4%), 656 (3%), and 1595 (1.5%) keV. The shapes of the angular distributions for the ground state and 656 keV level are identical to those corresponding to the two 0⁺ levels of ⁷²Ge at 0 (100%) and 690 (27%) keV. Some of these results indicate that the large difference in relative intensities of the pure L=0 transitions to the levels at 690 keV in ⁷²Ge (27%) and 656 keV in ⁷³As (3%) and the fact that two other L=0 transitions are observed in ⁷³As, significantly differ from those expected for strict weak coupling core excitation. It is shown that weak coupling is indeed a poor approximation for the two 0⁺ levels of ⁷²Ge, due to the ''blocking'' of the proton p₃/₂ orbital