Determination of αS using OPAL hadronic event shapes at ?s = 91-209 GeV\sqrt{s} = 91\mbox{--}2

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• 作者：The OPAL Collaboration
  G. Abbiendi (2)
  C. Ainsley (5)
  P. F. ?kesson (7)
  G. Alexander (21)
  G. Anagnostou (1)
  K. J. Anderson (8)
  S. Asai (2223)
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• 刊名：The European Physical Journal C - Particles and Fields
• 出版年：2011
• 出版时间：September 2011
• 年：2011
• 卷：71
• 期：9
• 页码：DOI: 10.1140/epjc/s1
• 全文大小：916.6 KB
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• 作者单位：1. School of Physics and Astronomy, University of Birmingham, Birmingham, B15 2TT UK2. Dipartimento di Fisica dell-Università di Bologna and INFN, 40126 Bologna, Italy3. Physikalisches Institut, Universit?t Bonn, 53115 Bonn, Germany4. Department of Physics, University of California, Riverside, CA 92521, USA5. Cavendish Laboratory, Cambridge, CB3 0HE UK6. Ottawa-Carleton Institute for Physics, Department of Physics, Carleton University, Ottawa, Ontario K1S 5B6, Canada7. CERN, European Organisation for Nuclear Research, 1211 Geneva 23, Switzerland8. Enrico Fermi Institute and Department of Physics, University of Chicago, Chicago, IL 60637, USA9. Fakult?t für Physik, Albert-Ludwigs-Universit?t Freiburg, 79104 Freiburg, Germany10. Physikalisches Institut, Universit?t Heidelberg, 69120 Heidelberg, Germany11. Department of Physics, Indiana University, Bloomington, IN 47405, USA12. Queen Mary and Westfield College, University of London, London, E1 4NS UK13. Technische Hochschule Aachen, III Physikalisches Institut, Sommerfeldstrasse 26-8, 52056 Aachen, Germany14. University College London, London, WC1E 6BT UK15. School of Physics and Astronomy, Schuster Laboratory, The University of Manchester, M13 9PL Manchester, UK16. Department of Physics, University of Maryland, College Park, MD 20742, USA17. Laboratoire de Physique Nucléaire, Université de Montréal, Montréal, Québec H3C 3J7, Canada18. Department of Physics, University of Oregon, Eugene, OR 97403, USA19. Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire, OX11 0QX UK20. Department of Physics, Technion-Israel Institute of Technology, Haifa, 32000 Israel21. Department of Physics and Astronomy, Tel Aviv University, Tel Aviv, 69978 Israel22. International Centre for Elementary Particle Physics and Department of Physics, University of Tokyo, Tokyo, 113-0033 Japan23. Kobe University, Kobe, 657-8501 Japan24. Particle Physics Department, Weizmann Institute of Science, Rehovot, 76100 Israel25. Institut für Experimentalphysik, Universit?t Hamburg/DESY, Notkestrasse 85, 22607 Hamburg, Germany26. , University of Victoria, PO Box 3055, Victoria, BC V8W 3P6 Canada27. Department of Physics, University of British Columbia, Vancouver, BC V6T 1Z1, Canada28. Department of Physics, University of Alberta, Edmonton, AB T6G 2J1, Canada29. Research Institute for Particle and Nuclear Physics, PO Box 49, 1525 Budapest, Hungary30. Institute of Nuclear Research, PO Box 51, 4001 Debrecen, Hungary31. Ludwig-Maximilians-Universit?t München, Sektion Physik, Am Coulombwall 1, 85748 Garching, Germany32. Max-Planck-Institute für Physik, F?hringer Ring 6, 80805 München, Germany33. Department of Physics, Yale University, New Haven, CT 06520, USA
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Elementary Particles and Quantum Field Theory
  Nuclear Physics, Heavy Ions and Hadrons
  Physics beyond the Standard Model
  Measurement Science and Instrumentation
  Astronomy, Astrophysics and Cosmology
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1434-6052

文摘

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 α _S. 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