Among the observed variety of the natural phenomena reflected in experimental results, there are just a few physical features offering a view of a given fragment of the mosaic of physical laws in its entirety. One such remarkable fundamental feature is R, the ratio of the inclusive cross section of electron–positron annihilation into hadrons to the cross section of muon pair production in the Born approximation. We discuss experiments on measuring the R(s) ratio in the energy range 1.84–3.72 GeV.

中文翻译：

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测量前渐近能量范围内 e+e− 湮没成强子的包含截面

在实验结果所反映的观察到的各种自然现象中，只有少数物理特征提供了整体物理定律镶嵌的给定片段的视图。其中一个显着的基本特征是R，即电子 - 正电子湮没成强子的包含横截面与玻恩近似中 μ 子对产生的横截面之比。我们讨论了在 1.84-3.72 GeV 能量范围内测量R ( s ) 比的实验。