A particle-γ -coincidence experiment is performed to investigate the role of high values in the production of direct-α-emitting channels (associated with incomplete fusion) in 12 C + 169 Tm system. Spin distributions of various xn/pxn/αxn/2αxn channels are measured at E lab = 5.6A and 6.5A MeV. Entirely different de-excitation patterns are observed in direct-α-emitting channels and fusion-evaporation channels. The fusion-evaporation channels are found to be strongly fed over a broad spin range. While narrow range feeding for only high-spin states was observed in the case of direct-α-emitting channels, in the present work, incomplete fusion is shown to be a promising tool to populate high-spin states in final reaction products. To have better insight into the associated values in different reaction channels, the present data are compared with similar data obtained in 16 O(E lab ≈ 5.6A MeV) + 169 Tm system. The mean driving angular momenta involved in the production of direct-α-emitting channels are found to be higher than those involved in the production of fusion-evaporation channels. Direct-α multiplicity in the forward cone increases with driving angular momenta, which indicates the origin of direct-α-emitting channels at high values in noncentral interactions.

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