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.
- Ee annihilation
- Inclusive hadronic cross section
- Measurement of R
- inclusive hadronic cross section
- e(+)e(-) annihilation
- measurement of R
- ANOMALOUS MAGNETIC-MOMENT