The evaporation residues, populated through complete and incomplete fusion processes in the reaction of ¹⁸O+ ¹⁶⁵Ho, have been analyzed via excitation function measurements at projectile energies ≈ 4-7 MeV/nucleon. The cross-sections measured experimentally have been compared with the predictions of the compound nucleus model code PACE-4 calculations which only considers complete fusion (CF) reaction cross-sections. The experimental cross-section of the reaction residues populated through xn and pxn channels matches well with the theoretical model code PACE-4 predictions. On the other hand, α-emitting channels show an enhancement in the measured cross-section over PACE-4 calculations which reveals the occurrence of incomplete fusion (ICF) at the studied energy range. The relative percentage of incomplete fusion has been calculated from the experimental data and its dependence on various entrance channel parameters like projectile energy, mass-asymmetry, α-Q value and Coulomb factor (Z_PZ_T) has been studied. The strength of incomplete fusion function obtained in the ¹⁸O+ ¹⁶⁵Ho interaction has been compared with the previously studied systems. Results of the present study indicate that ¹⁸O (two neutron excess) projectile shows more incomplete fusion contribution as compared to ¹²C,¹³C and ¹⁶O projectiles due to its relatively small negative α-Q value.

中文翻译：

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不完全融合反应的系统研究：各种入口通道参数的作用

在¹⁸ O + ¹⁶⁵反应中通过完全和不完全融合过程填充的蒸发残留物Ho，已经通过在射弹能量≈4-7 MeV /核子的激发函数测量进行了分析。实验测量的横截面已与复合核模型代码PACE-4计算的预测进行了比较，该计算仅考虑完全融合（CF）反应横截面。通过xn和pxn通道填充的反应残留物的实验截面与理论模型代码PACE-4预测非常吻合。另一方面，与PACE-4计算相比，发射α的通道在测量横截面上显示出增强，这表明在研究的能量范围内发生了不完全融合（ICF）。根据实验数据计算出不完全融合的相对百分比，其与射弹能量，质量不对称，_P ž _Ŧ）进行了研究。已将¹⁸ O + ¹⁶⁵ Ho相互作用中获得的不完全融合功能的强度与先前研究的系统进行了比较。本研究的结果表明，与¹² C，¹³ C和¹⁶ O弹丸相比，由于¹⁸ O（两个中子过量）弹丸的负α-Q值相对较小，因此显示出更多的不完全融合作用。