The extended optical model is used to simultaneously analyze the elastic scattering and fusion data for the weakly-bound system of ⁹Be + ¹²C in the low-energy region. Dynamic polarization potentials $U_F$, $U_D$, associated with fusion and direct couplings, respectively, are introduced. Corresponding fitting parameters leading to dispersive potentials are found, which provide good simultaneous descriptions of elastic and fusion data. The energy-dependent behavior of the polarization potentials establishes a striking difference with respect to that observed for weakly bound projectiles, including ⁹Be, on medium- and heavy-mass targets. Contrary to similar analyses made on weakly-bound systems, the real part of $U_D$ is found to be attractive in the present case. The observed behavior is discussed.

利用扩展光学模型同时分析低能区弱束缚体系⁹ Be + ^{12 C 的弹性散射和聚变数据。}动态极化电位$U_F$,$U_D$，分别与融合和直接耦合相关。找到了导致色散势的相应拟合参数，这为弹性数据和融合数据提供了良好的同时描述。极化势的能量依赖性行为与弱束缚射弹（包括⁹ Be）在中质量和重质量目标上观察到的情况存在显着差异。与对弱束缚系统进行的类似分析相反，$U_D$在本案中发现很有吸引力。讨论了观察到的行为。