Influence of projectile structure and target deformation on incomplete fusion in the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mmultiscripts><mml:mi mathvariant="normal">O</mml:mi><mml:mprescripts/><mml:none/><mml:mn>16</mml:mn></mml:mmultiscripts><mml:mo>+</mml:mo><mml:mmultiscripts><mml:mi mathvariant="normal">V</mml:mi><mml:mprescripts/><mml:none/><mml:mn>51</mml:mn></mml:mmultiscripts></mml:mrow></mml:math> system

To accomplish a systematic study of incomplete fusion, verification of more experimental data of different projectile-target combinations is required. For this purpose, the excitation functions for several evaporation residues formed in $^{16}\mathrm{O}+^{51}\mathrm{V}$ interaction at energy $\ensuremath{\approx}4$--7 MeV/$A$ were measured. The experimentally measured excitation functions were compared with the theoretical predictions obtained from statistical model code alice-91. The measured excitation functions for $xn$ and/or $pxn$ channels are found to be in good agreement with theoretical predictions. However, a significant enhancement has been observed for $\ensuremath{\alpha}$-breakup fusion modes. This enhancement in the cross section gives clear indication of incomplete fusion of the projectile with the target. To gain insightin to the reaction dynamics, incomplete fusion probability has been deduced. This shows that the incomplete fusion process gradually increases in importance with increasing incident energy. The present results have also been compared with the results obtained in the interaction of $^{12}\mathrm{C}$ and $^{20}\mathrm{Ne}$ with $^{51}\mathrm{V}$ where a strong projectile structure effect has been observed, which can be explained in terms of the $\ensuremath{\alpha}$-decay $Q$ value of the projectile. It is also observed that the probability of breakup of a projectile prior to fusion depends on mass asymmetry of the interacting partners as well as on the deformation of the target nucleus.

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