Measurement of αS in Radiative Hadronic Events at OPAL
نویسنده
چکیده
Hadronic final states with a hard isolated photon are studied using data taken at centre-of-mass energies around MZ with the OPAL detector at LEP. The strong coupling αS is extracted by fitting event shape variables for the reduced centre-of-mass energies ranging from 20 GeV to 80 GeV, and the energy dependence of αS is studied. Combining all the values using different event shape variables and energies gives:
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تاریخ انتشار 2003