Measuring the inclusive cross section of e+e- annihilation into hadrons in the pre-asymptotic energy range

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Abstract

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.

Original languageEnglish
Pages (from-to)929-939
Number of pages11
JournalPhysics-Uspekhi
Volume63
Issue number9
DOIs
Publication statusPublished - Sep 2020

Keywords

  • Ee annihilation
  • Inclusive hadronic cross section
  • Measurement of R
  • inclusive hadronic cross section
  • e(+)e(-) annihilation
  • RUNDEC
  • measurement of R
  • ANOMALOUS MAGNETIC-MOMENT
  • PARAMETERS
  • E+E-ANNIHILATION
  • R-UDS
  • RESONANCE
  • MASS
  • RADIATIVE-CORRECTIONS
  • SUM-RULES
  • E&E-ANNIHILATION

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