THE MEASUREMENT OF R IN E(-)-ANNIHILATION AT CENTER-OF-MASS ENERGIES BETWEEN 7.25 AND 10.34 GEV()E()

Citation
Ae. Blinov et al., THE MEASUREMENT OF R IN E(-)-ANNIHILATION AT CENTER-OF-MASS ENERGIES BETWEEN 7.25 AND 10.34 GEV()E(), Zeitschrift fur Physik. C, Particles and fields, 70(1), 1996, pp. 31-37
Citations number
33
Categorie Soggetti
Physics, Particles & Fields
ISSN journal
01709739
Volume
70
Issue
1
Year of publication
1996
Pages
31 - 37
Database
ISI
SICI code
0170-9739(1996)70:1<31:TMORIE>2.0.ZU;2-Q
Abstract
The total cross section of the process e(+)e(-) --> hadrons has been m easured in the center-of-mass energy range between 7.25 and 10.34 GeV using the MD-1 detector at the VEPP-4 collider. The ratio R = sigma(e( +)e(-) --> hadrons)/sigma(e(+)e(-) --> mu(+) mu(-)) was found to be co nstant in this energy range with the average value of 3.58 +/- 0.02 +/ - 0.14.