{ "id": "hep-ph/9309280", "version": "v2", "published": "1993-09-17T16:49:12.000Z", "updated": "1993-10-07T13:46:55.000Z", "title": "Scaling Violation in the Fragmentation Functions in e+e- Annihilation", "authors": [ "W. de Boer", "T. Kussmaul", "IEKP Karlsruhe" ], "comment": "IEKP-KA/93-8 preprint latex + eps fig (epsf macros)", "categories": [ "hep-ph" ], "abstract": "A determination of the hadronic fragmentation functions of the Z-boson is presented from a study of the inclusive hadron production wit the DELPHI detector at LEP. These fragmentation functions were compared with the ones at lower energies, thus covering data in a large kinematic range: 196 <= Q^2 <= 8312 GeV^2 and x(= p_h/E_beam) > 0.08 A large scaling violation was observed, which was used to extract the strong coupling constant in second order QCD: alpha_s(Mz) =0.118 +\\- 0.005. The corresponding QCD scale for five quark flavours is: Lambda_MS_bar = 230 +/- 60 MeV.", "revisions": [ { "version": "v2", "updated": "1993-10-07T13:46:55.000Z" } ], "analyses": { "keywords": [ "annihilation", "inclusive hadron production wit", "hadronic fragmentation functions", "large kinematic range", "second order qcd" ], "note": { "typesetting": "LaTeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "inspire": 359460, "adsabs": "1993hep.ph....9280D" } } }