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High Energy Physics - Experiment

arXiv:hep-ex/9807007 (hep-ex)
[Submitted on 8 Jul 1998 (v1), last revised 7 Aug 1998 (this version, v2)]

Title:Measurement of C-Parameter and Determinations of alpha_s from C-Parameter and Jet Broadening at PETRA Energies

Authors:P.A. Movilla Fernández (RWTH-Aachen), O. Biebel (RWTH-Aachen), S. Bethke (RWTH-Aachen), the JADE Collaboration
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Abstract: e^+e^- annihilation data recorded by the JADE detector at PETRA were used to measure the C-parameter for the first time at sqrt{s}= 35 and 44 GeV. The distributions were compared to a resummed QCD calculation which recently became available for this observable. % In addition, we applied extended resummed calculations to the heavy and wide jet broadening variables, B_T and B_W, which now include a proper treatment of the quark recoil against multi-gluon emission with single-logarithmic accuracy. % We further investigated power corrections to the mean values of the observables mentioned above. In this study, we considered all available e^+e^- data between sqrt{s}= 35 and 172 GeV.
Comments: 17 pages, LaTeX2e, 11 .eps-files included, paper contributed to the ICHEP'98 conference in Vancouver, typo in stat. error of alpha_s(35 GeV) on p.5 corrected
Subjects: High Energy Physics - Experiment (hep-ex); High Energy Physics - Phenomenology (hep-ph)
Report number: PITHA 98/21 (July 2, 1998)
Cite as: arXiv:hep-ex/9807007
  (or arXiv:hep-ex/9807007v2 for this version)
  https://doi.org/10.48550/arXiv.hep-ex/9807007

Submission history

From: Otmar Biebel [view email]
[v1] Wed, 8 Jul 1998 10:16:22 UTC (38 KB)
[v2] Fri, 7 Aug 1998 08:41:29 UTC (41 KB)
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