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Published February 1, 1998 | Version Published
Journal Article Open

Measurement of the total cross section for e^+e^-→hadrons at √s=10.52 GeV

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Abstract

Using the CLEO detector at the Cornell Electron Storage Ring, we have made a measurement of R≡σ(e^+e^-→hadrons)/σ(e^+e^-→μ^+μ^-)=3.56±0.01±0.07 at √s=10.52 GeV. This implies a value for the strong coupling constant of α_s(10.52 GeV)=0.20±0.01±0.06, or α_s(MZ)=0.13±0.005±0.03.

Additional Information

© 1998 The American Physical Society. Received 7 July 1997; published 13 January 1998. We gratefully acknowledge the effort of the CESR staff in providing us with excellent luminosity and running conditions. J.P.A., J.R.P., and I.P.J.S. thank the NYI program of the NSF, M.S. thanks the PFF program of the NSF, G.E. thanks the Heisenberg Foundation, K.K.G., M.S., H.N.N., T.S., and H.Y. thank the OJI program of DOE, J.R.P., K.H., M.S., and V.S. thank the A.P. Sloan Foundation, R.W. thanks the Alexander von Humboldt Stiftung, and M.S. thanks Research Corporation for support. This work was supported by the National Science Foundation, the U.S. Department of Energy, and the Natural Sciences and Engineering Research Council of Canada.

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Identifiers

Eprint ID
28769
Resolver ID
CaltechAUTHORS:20120113-092305246

Funding

NSF
Heisenberg Foundation
Department of Energy (DOE) OJI Program
A. P. Sloan Foundation
Alexander von Humboldt Stiftung
Research Corporation
Department of Energy (DOE)
Natural Sciences and Engineering Research Council of Canada (NSERC)

Dates

Created
2012-01-13
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Updated
2023-03-16
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Physics Department , Physics Department