The angular distributions of elastic scattering of 14 N ions on 10 B targets have been measured at incident beam energies of 21.0 and 24.5 MeV. Angular distributions at higher energies 38–94.0 MeV (previously measured) were also included in the analysis. All data were analyzed within the framework of the optical model and the distorted waves Born approximation method. The observed rise in cross sections at large angles was interpreted as a possible contribution of the α-cluster exchange mechanism. Spectroscopic amplitudes SA 2 and SA 4 for the configuration 14 N→ 10 B + α were extracted. Their average values are 0.58±0.10 and 0.81±0.12 for SA 2 and SA 4 , respectively, suggesting that the exchange mechanism is a major component of the elastic scattering for this system. The energy dependence of the depths for the real and imaginary potentials was found.

中文翻译：

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对10 B靶上14 N弹性散射的新测量和重新分析

在入射能量为21.0和24.5 MeV的情况下，已经测量了14 N离子在10 B靶上的弹性散射角分布。分析中还包括了高能量38–94.0 MeV（以前测量）下的角分布。在光学模型和失真波博恩近似方法的框架内分析了所有数据。在大角度处观察到的横截面上升被解释为α-簇交换机制的可能贡献。提取出用于结构14 N→10 B +α的光谱幅度SA 2和SA 4。SA 2和SA 4的平均值分别为0.58±0.10和0.81±0.12，表明交换机制是该系统弹性散射的主要组成部分。