Measurement of the total cross section for $e^{+} e^{-} \to$ hadrons at $\sqrt{s} = 10.52$ GeV

Authors:

RAR. Ammar
R. Ammar
PBP. Baringer
P. Baringer
ABA. Bean
A. Bean
DBD. Besson
D. Besson
DCD. Coppage
D. Coppage
CDC. Darling
C. Darling
RDR. Davis
R. Davis
NHN. Hancock
N. Hancock
SKS. Kotov
S. Kotov
IKI. Kravchenko
I. Kravchenko
NKN. Kwak
N. Kwak
SAS. Anderson
S. Anderson

Publisher website

1 February 1998

journal article
research article
Published by American Physical Society (APS) in Physical Review D

Vol. 57 (3) , 1350-1358
DOI:10.1103/physrevd.57.1350

Abstract

Using the CLEO detector at the Cornell Electron Storage Ring, we have made a measurement of

R \equiv σ {(e}^{+} e^{-} \to hadrons) / σ {(e}^{+} e^{-} \to μ^{+} μ^{-}) = 3.56 \pm 0.01 \pm 0.07

at

\sqrt{s}

=10.52 GeV. This implies a value for the strong coupling constant of

α_{s} (10.52 GeV) = 0.20 \pm 0.01 \pm 0.06

, or

α_{s} {(M}_{Z}) = 0.13 \pm 0.005 \pm 0.03

.

Keywords

CLEO

All Related Versions

Version 1, 1997-07-08, ArXiv

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