In order to study incomplete fusion (ICF) reaction dynamics, the present work manifests the role of a non-$\alpha$-cluster ${}^{14}\mathrm{N}$ projectile on ${}^{181}\mathrm{Ta}$ target at energies $\approx \mathrm{4–7}$ MeV/nucleon using the offline $\gamma$-ray spectroscopy. The excitation functions for 15 reaction residues populated in ${}^{14}\mathrm{N}+{}^{181}\mathrm{Ta}$ system have been measured and analyzed within the framework of statistical model code PACE4. The experimentally measured excitation functions of evaporation residues populated via xn/pxn channels are found to be well reproduced by the predictions of code PACE4, which confirms their production solely via complete fusion process. However, an enhancement in the measured excitation function as compared to PACE4 calculations, particularly in tail portion of ${}^{192}\mathrm{Hg}$ residue ($3n$ channel) has been observed indicating the presence of precompound emission. A significant contribution from precursor decay in pxn channels has also been observed. An enhancement in the measured excitation functions for $\alpha$-emitting channels as compared to the PACE4 predictions has been observed and attributed to the incomplete fusion process. Further, the contribution from incomplete fusion process in the ${}^{14}\mathrm{N}+{}^{181}\mathrm{Ta}$ system has also been deduced in terms of strength function ($F_{\mathrm{ICF}}$). The results have been discussed in terms of the parameters which influence the dynamics of ICF process. The $F_{\mathrm{ICF}}$ is found to depend strongly on projectile energies, the product of projectile and target charges, and $\alpha -Q$ value of the projectile.

中文翻译：

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非α簇射弹对不完全聚变动力学的影响：N14+Ta181体系的实验研究

为了研究不完全聚变 (ICF) 反应动力学，目前的工作体现了非$\alpha$-簇 ${}^{14}\mathrm{N}$ 抛射物 ${}^{181}塔$ 以能量为目标 $\approx \mathrm{4–7}$ MeV/核子使用离线 $\gamma$-射线光谱。填充了 15 个反应残基的激发函数${}^{14}\mathrm{N}+{}^{181}塔$系统已经在统计模型代码PACE4的框架内进行了测量和分析。发现通过xn/pxn通道填充的蒸发残留物的实验测量激发函数被代码 PACE4 的预测很好地再现，这证实了它们仅通过完整的融合过程产生。然而，与 PACE4 计算相比，测量的激发函数有所增强，特别是在${}^{192}汞$ 残留物（$3n$通道）已被观察到，表明存在预化合物发射。还观察到pxn通道中前体衰变的显着贡献。测量激励函数的增强$\alpha$与 PACE4 预测相比，发射通道已被观察到并归因于不完全融合过程。此外，不完全融合过程的贡献${}^{14}\mathrm{N}+{}^{181}塔$ 系统也被推导出强度函数（$F_{\mathrm{国际金融联合会}}$）。根据影响 ICF 过程动力学的参数对结果进行了讨论。这$F_{\mathrm{国际金融联合会}}$ 发现强烈依赖于射弹能量，射弹和目标电荷的乘积，和 $\alpha -问$ 弹丸的价值。