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Article
Report number arXiv:1101.1470 ; CERN-PH-EP-2010-089 ; CERN-PH-EP-2010-089
Title Determination of $\alpha_S$ using OPAL hadronic event shapes at $\sqrt{s}$ = 91 − 209 GeV and resummed NNLO calculations
Related titlenext-to-next-to-leading order
Determination of ${\alpha}_S$ using OPAL hadronic event shapes at sqrt(s) = 91 - 209 GeV and resummed NNLO calculations
Author(s)

Abbiendi, G. (INFN, Bologna ; Bologna U.) ; Ainsley, C. (Cambridge U.) ; Akesson, P.F. (CERN) ; Alexander, G. (Tel Aviv U.) ; Anagnostou, G. (Birmingham U.) ; Anderson, K.J. (Chicago U., EFI) ; Asai, S. (Tokyo U., ICEPP ; Kobe U.) ; Axen, D. (British Columbia U.) ; Bailey, I. (Victoria U.) ; Barberio, E. (CERN) ; Barillari, T. (Munich, Max Planck Inst.) ; Barlow, R.J. (Manchester U.) ; Batley, R.J. (Cambridge U.) ; Bechtle, P. (Hamburg U. ; DESY) ; Behnke, T. (Hamburg U. ; DESY) ; Bell, K.W. (Rutherford) ; Bell, P.J. (Birmingham U.) ; Bella, G. (Tel Aviv U.) ; Bellerive, A. (Ottawa Carleton Inst. Phys.) ; Benelli, G. (UC, Riverside) ; Bethke, S. (Munich, Max Planck Inst.) ; Biebel, O. (Munich U.) ; Boeriu, O. (Freiburg U.) ; Bock, P. (Heidelberg U.) ; Boutemeur, M. (Munich U.) ; Braibant, S. (INFN, Bologna ; Bologna U.) ; Brown, R.M. (Rutherford) ; Burckhart, H.J. (CERN) ; Campana, S. (UC, Riverside) ; Capiluppi, P. (INFN, Bologna ; Bologna U.) ; Carnegie, R.K. (Ottawa Carleton Inst. Phys.) ; Carter, A.A. (Queen Mary, U. of London) ; Carter, J.R. (Cambridge U.) ; Chang, C.Y. (Maryland U.) ; Charlton, D.G. (Birmingham U.) ; Ciocca, C. (INFN, Bologna ; Bologna U.) ; Csilling, A. (Budapest, RMKI) ; Cuffiani, M. (INFN, Bologna ; Bologna U.) ; Dado, S. (Technion) ; Dallavalle, M. (INFN, Bologna ; Bologna U.) ; De Roeck, A. (CERN) ; De Wolf, E.A. (CERN) ; Desch, K. (Hamburg U. ; DESY) ; Dienes, B. (Debrecen, Inst. Nucl. Res.) ; Dubbert, J. (Munich U.) ; Duchovni, E. (Weizmann Inst.) ; Duckeck, G. (Munich U.) ; Duerdoth, I.P. (Manchester U.) ; Etzion, E. (Tel Aviv U.) ; Fabbri, F. (INFN, Bologna ; Bologna U.) ; Ferrari, P. (CERN) ; Fiedler, F. (Munich U.) ; Fleck, I. (Freiburg U.) ; Ford, M. (Manchester U.) ; Frey, A. (CERN) ; Gagnon, P. (Indiana U.) ; Gary, J.W. (UC, Riverside) ; Geich-Gimbel, C. (Bonn U.) ; Giacomelli, G. (INFN, Bologna ; Bologna U.) ; Giacomelli, P. (INFN, Bologna ; Bologna U.) ; Giunta, M. (UC, Riverside) ; Goldberg, J. (Technion) ; Gross, E. (Weizmann Inst.) ; Grunhaus, J. (Tel Aviv U.) ; Gruwe, M. (CERN) ; Gupta, A. (Chicago U., EFI) ; Hajdu, C. (Budapest, RMKI) ; Hamann, M. (Hamburg U. ; DESY) ; Hanson, G.G. (UC, Riverside) ; Harel, A. (Technion) ; Hauschild, M. (CERN) ; Hawkes, C.M. (Birmingham U.) ; Hawkings, R. (CERN) ; Herten, G. (Freiburg U.) ; Heuer, R.D. (CERN) ; Hill, J.C. (Cambridge U.) ; Horvath, D. (Budapest, RMKI ; Debrecen, Inst. Nucl. Res.) ; Igo-Kemenes, P. (Heidelberg U.) ; Ishii, K. (KEK, Tsukuba ; Tokyo U., ICEPP ; Kobe U.) ; Jeremie, H. (Montreal U.) ; Jovanovic, P. (Birmingham U.) ; Junk, T.R. (Ottawa Carleton Inst. Phys.) ; Kanzaki, J. (Tokyo U., ICEPP ; Kobe U. ; KEK, Tsukuba) ; Karlen, D. (Victoria U.) ; Kawagoe, K. (Tokyo U., ICEPP ; Kobe U.) ; Kawamoto, T. (Tokyo U., ICEPP ; Kobe U.) ; Keeler, R.K. (Victoria U.) ; Kellogg, R.G. (Maryland U.) ; Kennedy, B.W. (Rutherford) ; Kluth, S. (Munich, Max Planck Inst.) ; Kobayashi, T. (Tokyo U., ICEPP ; Kobe U.) ; Kobel, M. (Bonn U.) ; Komamiya, S. (Tokyo U., ICEPP ; Kobe U.) ; Kramer, T. (Hamburg U. ; DESY) ; Krasznahorkay, A., Jr. (Debrecen, Inst. Nucl. Res. ; U. Debrecen, Inst. Phys.) ; Krieger, P. (Ottawa Carleton Inst. Phys.) ; von Krogh, J. (Heidelberg U.) ; Kuhl, T. (Hamburg U. ; DESY) ; Kupper, M. (Weizmann Inst.) ; Lafferty, G.D. (Manchester U.) ; Landsman, H. (Technion) ; Lanske, D. (Aachen, Tech. Hochsch.) ; Lellouch, D. (Weizmann Inst.) ; Letts, J. (Weizmann Inst.) ; Levinson, L. (Weizmann Inst.) ; Lillich, J. (Freiburg U.) ; Lloyd, S.L. (Queen Mary, U. of London) ; Loebinger, F.K. (Manchester U.) ; Lu, J. (British Columbia U.) ; Ludwig, A. (Bonn U.) ; Ludwig, J. (Freiburg U.) ; Mader, W. (Bonn U.) ; Marcellini, S. (INFN, Bologna ; Bologna U.) ; Martin, A.J. (Queen Mary, U. of London) ; Mashimo, T. (Tokyo U., ICEPP ; Kobe U.) ; Mattig, P. (British Columbia U.) ; McKenna, J. (British Columbia U.) ; McPherson, R.A. (Victoria U.) ; Meijers, F. (CERN) ; Menges, W. (Hamburg U. ; DESY) ; Merritt, F.S. (Chicago U., EFI) ; Mes, H. (Ottawa Carleton Inst. Phys. ; TRIUMF) ; Meyer, N. (Hamburg U. ; DESY) ; Michelini, A. (INFN, Bologna ; Bologna U.) ; Mihara, S. (Tokyo U., ICEPP ; Kobe U. ; KEK, Tsukuba) ; Mikenberg, G. (Weizmann Inst.) ; Miller, D.J. (University Coll. London) ; Mohr, W. (Freiburg U.) ; Mori, T. (Tokyo U., ICEPP ; Kobe U.) ; Mutter, A. (Freiburg U.) ; Nagai, K. (Queen Mary, U. of London) ; Nakamura, I. (Tokyo U., ICEPP ; Kobe U. ; KEK, Tsukuba) ; Nanjo, H. (Tokyo U., ICEPP ; Kobe U.) ; Neal, H.A. (Yale U.) ; O'Neale, S.W. (Birmingham U.) ; Oh, A. (CERN) ; Oreglia, M.J. (Chicago U., EFI) ; Orito, S. (Tokyo U., ICEPP ; Kobe U.) ; Pahl, C. (Munich, Max Planck Inst.) ; Pasztor, G. (UC, Riverside) ; Pater, J.R. (Manchester U.) ; Pilcher, J.E. (Chicago U., EFI) ; Pinfold, J. (Alberta U.) ; Plane, D.E. (CERN) ; Pooth, O. (Aachen, Tech. Hochsch.) ; Przybycien, M. (CERN) ; Quadt, A. (Munich, Max Planck Inst.) ; Rabbertz, K. (CERN) ; Rembser, C. (CERN) ; Renkel, P. (Weizmann Inst.) ; Roney, J.M. (Victoria U.) ; Rossi, A.M. (INFN, Bologna ; Bologna U.) ; Rozen, Y. (Technion) ; Runge, K. (Freiburg U.) ; Sachs, K. (Ottawa Carleton Inst. Phys.) ; Saeki, T. (KEK, Tsukuba ; Tokyo U., ICEPP ; Kobe U.) ; Sarkisyan, E.K.G. (CERN) ; Schaile, A.D. (Munich U.) ; Schaile, O. (Munich U.) ; Scharff-Hansen, P. (CERN) ; Schieck, J. (Munich, Max Planck Inst.) ; Schorner-Sadenius, T. (CERN) ; Schroder, M. (CERN) ; Schumacher, M. (Bonn U.) ; Seuster, R. (Aachen, Tech. Hochsch.) ; Shears, T.G. (CERN) ; Shen, B.C. (UC, Riverside) ; Sherwood, P. (University Coll. London) ; Skuja, A. (Maryland U.) ; Smith, A.M. (CERN) ; Sobie, R. (Victoria U.) ; Soldner-Rembold, S. (Manchester U.) ; Spano, F. (Chicago U., EFI) ; Stahl, A. (Aachen, Tech. Hochsch.) ; Strom, D. (Oregon U.) ; Strohmer, R. (Munich U.) ; Tarem, S. (Technion) ; Tasevsky, M. (CERN) ; Teuscher, R. (Chicago U., EFI) ; Thomson, M.A. (Cambridge U.) ; Torrence, E. (Oregon U.) ; Toya, D. (Tokyo U., ICEPP ; Kobe U.) ; Trigger, I. (CERN ; TRIUMF) ; Trocsanyi, Z. (Debrecen, Inst. Nucl. Res. ; U. Debrecen, Inst. Phys.) ; Tsur, E. (Tel Aviv U.) ; Turner-Watson, M.F. (Birmingham U.) ; Ueda, I. (Tokyo U., ICEPP ; Kobe U.) ; Ujvari, B. (Debrecen, Inst. Nucl. Res. ; U. Debrecen, Inst. Phys.) ; Vollmer, C.F. (Munich U.) ; Vannerem, P. (Freiburg U.) ; Vertesi, R. (Debrecen, Inst. Nucl. Res. ; U. Debrecen, Inst. Phys.) ; Verzocchi, M. (Maryland U.) ; Voss, H. (CERN) ; Vossebeld, J. (CERN) ; Ward, C.P. (Cambridge U.) ; Ward, D.R. (Cambridge U.) ; Watkins, P.M. (Birmingham U.) ; Watson, A.T. (Birmingham U.) ; Watson, N.K. (Birmingham U.) ; Wells, P.S. (CERN) ; Wengler, T. (CERN) ; Wermes, N. (Bonn U.) ; Wilson, G.W. (Manchester U.) ; Wilson, J.A. (Birmingham U.) ; Wolf, G. (Weizmann Inst.) ; Wyatt, T.R. (Manchester U.) ; Yamashita, S. (Tokyo U., ICEPP ; Kobe U.) ; Zer-Zion, D. (UC, Riverside) ; Zivkovic, L. (Technion)

Publication 2011
Imprint 10 Jan 2011
Number of pages 21
Note Comments: 35 pages, 10 figures
Long author list - awaiting processing
35 pages, 10 figures, version as accepted by the journal
In: Eur. Phys. J. C 71 (2011) 1733
DOI 10.1140/epjc/s10052-011-1733-z
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LEP ; OPAL
Abstract Hadronic event shape distributions from e+e− annihilation measured by the OPAL experiment at centre-of-mass energies between 91 GeV and 209 GeV are used to determine the strong coupling αS. The results are based on QCD predictions complete to the next-to-next-to-leading order (NNLO), and on NNLO calculations matched to the resummed next-to-leading-log-approximation terms (NNLO+NLLA). The combined NNLO result from all variables and centre-of-mass energies is αS(mZ0) = 0.1201 ± 0.0008(stat.) ± 0.0013(exp.) ± 0.0010(had.) ± 0.0024(theo.). while the combined NNLO+NLLA result is αS(mZ0) = 0.1189 ± 0.0008(stat.) ± 0.0016(exp.) ± 0.0010(had.) ± 0.0036(theo.). The completeness of the NNLO and NNLO+NLLA results with respect to missing higher order contributions, studied by varying the renormalization scale, is improved compared to previous results based on NLO or NLO+NLLA predictions only. The observed energy dependence of αS agrees with the QCD prediction of asymptotic freedom and excludes the absence of running.
Copyright/License arXiv nonexclusive-distrib. 1.0
Preprint: © 2010-2024 CERN (License: CC-BY-3.0)



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 ჩანაწერი შექმნილია 2010-12-16, ბოლოს შესწორებულია 2021-10-29


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