Measurement of σ total in e+e- annihilations below 10.56 GeV

S. Stone

Research output: Contribution to journalConference Articlepeer-review


Using the CLEO III detector, we measure absolute cross sections for e+e- → hadrons at seven center-of-mass energies between 6.964 and 10.538 GeV. R, the ratio of hadronic and muon pair production cross sections, is measured at these energies with a r.m.s. error <2% allowing determinations of the strong coupling α s. Using the expected evolution of α s with energy we find α s (MZ2 0.126 ± -0.011+0.015, and Λ 0.31 -0.08-0.21+0.09+0.29.

Original languageEnglish (US)
Article number042028
JournalJournal of Physics: Conference Series
Issue number4
StatePublished - Jun 30 2008
EventEPS High Energy Particle Physics Conference, HEPP 2007 - Manchester, United Kingdom
Duration: Jul 19 2007Jul 26 2007

ASJC Scopus subject areas

  • General Physics and Astronomy


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