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Determination of the QCD scale parameter Lambda (ms) with QCD cascade on the basis of the next-to-leading logarithmic approximation

The VENUS collaboration Abe, K. ; Amako, K. ; Arai, Y. ; et al.
Phys.Lett.B 240 (1990) 232-236, 1990.
Inspire Record 296684 DOI 10.17182/hepdata.29690

The relative production ratio of 3-jet events to the total number of hadronic events was studied in e + e − annihilations at centre-of-mass energies between 54 and 61.4 GeV. The QCD scale parameter has been determined to be Λ MS =254 −47 +55 ±56 MeV on the basis of a QCD cascade with the next-to-leading logarithmic approximation.

2 data tables
Table 1

Data are uncorrected for initial radiation, detector effects, and quark hadronization.

Table 2

LAMBDA-MSBAR determined from the 3-jet ratio.