In the present work, experimental study of incomplete fusion in the ${}^{19}\mathrm{F}+{}^{93}\mathrm{Nb}$ system has been carried out in the energy range of $\approx$ 3–6 MeV/nucleon. The off-line $\gamma$-ray spectrometry was used to measure the cross sections of evaporation residues populated in this system. The analyses of experimentally measured excitation functions have been performed with theoretical predictions from the statistical model code PACE4 to probe the associated reaction mechanism. The imitation of $xn/pxn$ channels data grossly by the statistical model confirms the production of these residues via complete fusion process. However, the noticeable enhancement observation in $\alpha$-channel cross sections hints at the signatures of breakup fusion in addition to the dominant complete fusion. Furthermore, the present study, in light of literature data involving the interaction of ${}^{13}\mathrm{C}, {}^{16}\mathrm{O}$, and ${}^{18}\mathrm{O}$ projectiles with the same target ${}^{93}\mathrm{Nb}$, imparts the reliance of projectile structure on incomplete fusion, and the results may be understood on the basis of the projectile $Q_{\alpha }$ value. An attempt has also been made to discuss the trend of incomplete fusion fraction through the Coulomb factor and total asymmetry of the interacting partners. For the present studied system, the fusion function calculated from the experimentally measured fusion cross section data is compared with the universal fusion function to get information about fusion supression.

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• Breakup reactions
• Low & intermediate energy heavy-ion reactions
• Nuclear fusion
• Nuclear reactions