Abstract
The total cross section and the inclusive muon cross section for the process e+e-→ hadrons have been measured in the center of mass energy range between 39.79 and 46.78 GeV. The ratio R shows no significant structure. It has an average value of 4.13±0.08±0.14. An upper limit is set on the production of narrow resonances. Limits are obtained for pair-produced heavy quarks. The data are compared with the standard electroweak interaction model including QCD corrections taking into account the five known types of quarks. Upper limits are given for a possible structure of quarks and for effects of color octet leptons.
Original language | English |
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Pages (from-to) | 337-342 |
Number of pages | 6 |
Journal | Physics Letters B |
Volume | 160 |
Issue number | 4-5 |
DOIs | |
Publication status | Published - Oct 10 1985 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics