12,000

We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK

93%

93% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > A measurement of the total cross section and a ...
View graph of relations

« Back

A measurement of the total cross section and a study of inclusive muon production for the process e+e−→ hadrons in the energy range between 39.79 GeV and 46.78 GeV

Research output: Contribution to journalJournal article

Published

Journal publication date1985
JournalPhysics Letters B
Journal number4-5
Volume160
Number of pages6
Pages337-342
Original languageEnglish

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.