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在2 7Al+ 2 7Al(Elab≈ 1 2 0MeV)耗散反应激发函数涨落的实验研究中 ,首次在较大的角度范围内获得截面涨落的角度关联系数和角度关联函数 .实验结果表明 ,角度关联函数的形状呈现明显的非对称性 ,角度相干宽度至少为 4 0°;截面涨落在前后角区表现出明显不同的角度相关性 .
In the experimental study of the exponential fluctuation of the exothermic reaction of 2 7 Al + 2 7 Al (Elab ≈ 1 2 0MeV), the angular correlation coefficient and the angle correlation function of cross-section fluctuation were obtained for the first time over a wide range of angles. The experimental results show that the angle The shape of the correlation function shows obvious asymmetry, and the angular coherence width is at least 40 °. The cross-section fluctuation shows obviously different angle correlations in the front and back corner regions.