Determination of α<SUB>s</SUB> from hadronic event shapes in e+e− annihilation at 192 ⩽s⩽ 208 GeV

dc.creatorDova, María Teresa
dc.creatorL3 Collaboration
dc.date2002-04-20
dc.date2019-06-14T17:15:43Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/76548
dc.identifierissn:0370-2693
dc.descriptionResults are presented from a study of the structure of high energy hadronic events recorded by the L3 detector at √s 192 GeV. The distributions of several event shape variables are compared to resummed O(α2 s ) QCD calculations. We determine the strong coupling constant at three average centre-of-mass energies: 194.4, 200.2 and 206.2 GeV. These measurements, combined with previous L3 measurements at lower energies, demonstrate the running of αs as expected in QCD and yield αs(mZ) = 0.1227 ± 0.0012 ± 0.0058, where the first uncertainty is experimental and the second is theoretical.
dc.descriptionFacultad de Ciencias Exactas
dc.formatapplication/pdf
dc.format217-228
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.rightsCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.subjectCiencias Exactas
dc.subjectFísica
dc.subjecthigh energy hadronic events
dc.subjectL3 detector
dc.subjectQCD calculations
dc.titleDetermination of α<SUB>s</SUB> from hadronic event shapes in e+e− annihilation at 192 ⩽s⩽ 208 GeV
dc.typeArticulo
dc.typeArticulo


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