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Comprehension of breakup fusion reactions using forward recoil range distribution measurements
Nuclear Physics A ( IF 1.4 ) Pub Date : 2023-12-02 , DOI: 10.1016/j.nuclphysa.2023.122809
Suhail A. Tali , Harish Kumar , M. Afzal Ansari , D. Singh , Rahbar Ali , Pankaj K. Giri , Sneha B. Linda , Amritraj Mahato , Nabendu Kumar Deb , R. Kumar , R.N. Ali

To understand the break-up fusion reaction dynamics, the forward recoil range distribution (FRRD) measurements of 12C + 165Ho system at the incident projectile energy of ≈ 88 MeV has been performed. The recoil catcher activation technique followed by the off-line gamma ray spectroscopy was implemented. It is observed that the FRRD measurements of the evaporation residues (ERs) populated via xn and pxn channels have a single Guassian peak at large cumulative thickness. This is attributed to complete momentum transfer from the projectile to the target nucleus. However, in case of the FRRD measurements of the ERs populated via αxn, αpxn and 2αxn emitting channels, in addition to peak corresponding to complete momentum transfer, the Gaussian peaks at lower cumulative thicknesses are also observed. This is accredited to the breakup fusion. Moreover, the effect of projectile breakup on complete fusion cross section is also studied. The suppression in fusion cross section is observed when compared with the universal fusion function, thus indicating the breakup probability of 12C projectile.



中文翻译:


使用前向反冲范围分布测量来理解聚变分裂反应



为了了解破裂聚变反应动力学,我们对 12 C + 165 Ho 系统在入射弹丸能量 ≈ 88 MeV 时进行了前向反冲范围分布 (FRRD) 测量。实施了反冲捕集器激活技术和离线伽马射线光谱分析。据观察,通过 xn 和 pxn 通道填充的蒸发残渣 (ER) 的 FRRD 测量在大累积厚度处具有单个高斯峰。这归因于从弹丸到目标核的完整动量转移。然而,在对通过 αxn、αpxn 和 2αxn 发射通道填充的 ER 进行 FRRD 测量时,除了对应于完全动量转移的峰值之外,还观察到较低累积厚度处的高斯峰值。这被认为是分裂融合。此外,还研究了弹丸破碎对完全熔合截面的影响。与通用融合函数相比,观察到融合截面的抑制,从而表明 12 C 弹的破碎概率。

更新日期:2023-12-02
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