A Measurement of the total cross-section for e+ e- ---> hadrons at s**(1/2) = 10.52-GeV

Ammar, R.; Baringer, Philip S.; Bean, A.; Besson, D.; Coppage, D.; Darling, C.; Davis, R.; Hancock, N.; Kotov, S.; Kravchenko, I.

doi:10.1103/PhysRevD.57.1350

A Measurement of the total cross-section for e+ e- ---> hadrons at s**(1/2) = 10.52-GeV

CLEO

Collaboration

•

R. Ammar
(
- Kansas U.
)

Jul, 1997

15 pages

Published in:

Phys.Rev.D 57 (1998) 1350-1358

e-Print:

hep-ex/9707018 [hep-ex]

DOI:

10.1103/PhysRevD.57.1350

Report number:

SLAC-PUB-9765,
CLNS-97-1493,
CLEO-97-14

Experiments:

CESR-CLEO-II

View in:

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Abstract:

Using the CLEO detector at the Cornell Electron Storage Ring, we have made a measurement of R=sigma(e+e- ->hadrons)/sigma(e+e- ->mu+mu-) =3.56+/-0.01+/-0.07 at ECM=10.52 GeV. This implies a value for the strong coupling constant of alpha_s(10.52 GeV)=0.20+/-0.01+/-0.06, or alpha_s(M_Z)=0.13+/-0.005+/-0.03.

electron positron: colliding beams
electron positron: annihilation
hadron: multiple production
cross section: hadronic
strong interaction: coupling constant
charged particle: multiplicity
CLEO
experimental results
Cornell CESR Stor
10.52 GeV-cms

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