Precise Measurement of Total Cross-Sections for the Process e+ e- ---> Multi-Hadrons in the Center-Of-Mass Energy Range Between 12.0-GeV and 36.4-GeV

The total cross section for the process e + e − → hadrons has been measured in the CM energy range between 12.0 and 36.4 GeV using the JADE detector with a typical systematic error of ±3%. The ratio R( σ( ee → hadrons ) σ pt ) is found to be constant over this range with an average value of 3.97 ± 0.05 (statistical and point-to-point systematic error) ± 0.10 (normalization error). The data were compared with the standard electro-weak interaction model including QCD corrections.

ELECTRON POSITRON: ANNIHILATION
ANNIHILATION: ELECTRON POSITRON
ELECTRON POSITRON: COLLIDING BEAMS
COLLIDING BEAMS: ELECTRON POSITRON
HADRON: ELECTROPRODUCTION
ELECTROPRODUCTION: HADRON
HADRON: MULTIPLE PRODUCTION
MULTIPLE PRODUCTION: HADRON
TOTAL CROSS SECTION: ENERGY DEPENDENCE
ENERGY DEPENDENCE: TOTAL CROSS SECTION

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