Determination of 55-155-155-1in second order QCD from hadronic Z decays

Journal article

Distributions of event shape variables obtained from 120600 hadronic Z decays measured with the DELPHI detector are compared to the predictions of QCD based event generators. Values of the strong coupling constant αs are derived as a function of the renormalization scale from a quantitative analysis of eight hadronic distributions. The final result, αs(MZ), is based on second order perturbation theory and uses two hadronization corrections, one computed with a parton shower model and the other with a QCD matrix element model. © 1992 Springer-Verlag.

Authors: Abreu, P; Adam, W; Adami, F; Adye, T; Akesson, T

• Journal: Zeitschrift für Physik C Particles and Fields
• Volume: 54
• Issue: 1
• Pages: 55-73
• Publication date: 1992-03-01
• DOI: 10.1007/BF01881708
• EISSN: 1434-6052
• ISSN: 0170-9739
• Language: English