Abstract
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 language | English (US) |
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Article number | 042028 |
Journal | Journal of Physics: Conference Series |
Volume | 110 |
Issue number | 4 |
DOIs | |
State | Published - Jun 30 2008 |
Event | EPS High Energy Particle Physics Conference, HEPP 2007 - Manchester, United Kingdom Duration: Jul 19 2007 → Jul 26 2007 |
ASJC Scopus subject areas
- General Physics and Astronomy