Combination of measurements of inclusive deep inelastic \({e^{\pm }p}\) scattering cross sections and QCD analysis of HERA data

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• 作者：H. Abramowicz ; I. Abt ; L. Adamczyk ; M. Adamus…
• 刊名：The European Physical Journal C - Particles and Fields
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：75
• 期：12
• 全文大小：7,349 KB
• 参考文献：1.A. Cooper-Sarkar, R. Devenish, Deep Inelastic Scattering (Oxford University Press, Oxford, 2011). ISBN 978-0-19-960225-4
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  S. Yamada (59)
  Y. Yamazaki (24) (59)
  J. 沤谩膷ek (49)
  N. Zakharchuk (11) (29)
  A. F. 呕arnecki (63)
  L. Zawiejski (24)
  O. Zenaiev (21)
  Z. Zhang (42)
  B. O. Zhautykov (2)
  N. Zhmak (22) (28)
  R. 沤leb膷铆k (49)
  H. Zohrabyan (66)
  F. Zomer (42)
  D. S. Zotkin (39)
  
  1. I. Physikalisches Institut der RWTH, Aachen, Germany
  54. Raymond and Beverly Sackler Faculty of Exact Sciences, School of Physics, Tel Aviv University, Tel Aviv, Israel
  40. Max-Planck-Institut f眉r Physik, Munich, Germany
  25. Faculty of Physics and Applied Computer Science, AGH-University of Science and Technology, Krak贸w, Poland
  64. National Centre for Nuclear Research, Warsaw, Poland
  37. Lebedev Physical Institute, Moscow, Russia
  8. University and INFN Bologna, Bologna, Italy
  4. Univerzitet u Banjoj Luci, Arhitektonsko-gra d虅 ko-geodetski fakultet, Banja Luka, Bosnia-Herzegovina
  22. Physikalisches Institut, Universit盲t Heidelberg, Heidelberg, Germany
  28. Institute for Nuclear Research, National Academy of Sciences, Kyiv, Ukraine
  29. Department of Nuclear Physics, National Taras Shevchenko University of Kyiv, Kyiv, Ukraine
  66. Yerevan Physics Institute, Yerevan, Armenia
  60. Institute of Physics and Technology of the Mongolian Academy of Sciences, Ulaanbaatar, Mongolia
  21. Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
  47. Faculty of Science, University of Montenegro, Podgorica, Montenegro
  3. Inter-University Institute for High Energies ULB-VUB, Brussels and Universiteit Antwerpen, Antwerpen, Belgium
  44. INFN Padova, Padova, Italy
  68. Deutsches Elektronen-Synchrotron DESY, Zeuthen, Germany
  2. Institute of Physics and Technology of Ministry of Education and Science of Kazakhstan, Almaty, Kazakhstan
  46. LLR, Ecole Polytechnique, CNRS/IN2P3, Palaiseau, France
  19. II. Physikalisches Institut, Universit盲t G枚ttingen, G枚ttingen, Germany
  42. LAL, Universit茅 Paris-Sud, CNRS/IN2P3, Orsay, France
  9. Physikalisches Institut der Universit盲t Bonn, Bonn, Germany
  33. Physics and Astronomy Department, University College London, London, UK
  45. Dipartimento di Fisica e Astronomia dell鈥?Universit脿 and INFN, Padua, Italy
  7. INFN Bologna, Bologna, Italy
  6. School of Physics and Astronomy, University of Birmingham, Birmingham, UK
  18. School of Physics and Astronomy, University of Glasgow, Glasgow, UK
  36. Institute for Theoretical and Experimental Physics, Moscow, Russia
  35. Departamento de Fisica Aplicada, CINVESTAV, M茅rida, Yucat谩n, Mexico
  12. Physics Department and INFN, Calabria University, Cosenza, Italy
  41. Department of Physics, York University, Ontario, M3J 1P3, Canada
  49. Faculty of Mathematics and Physics, Charles University, Praha, Czech Republic
  24. The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, Krak贸w, Poland
  5. Universit盲t Bielefeld, Bielefeld, Germany
  63. Faculty of Physics, University of Warsaw, Warsaw, Poland
  43. Department of Physics, University of Oxford, Oxford, UK
  50. Department of Physics, McGill University, Montreal, QC, H3A 2T8, Canada
  48. Institute of Physics, Academy of Sciences of the Czech Republic, Praha, Czech Republic
  31. Department of Physics, University of Liverpool, Liverpool, UK
  65. Fachbereich C, Universit盲t Wuppertal, Wuppertal, Germany
  39. Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, Russia
  34. Aix Marseille Universit茅, CNRS/IN2P3, CPPM UMR 7346, Marseille, 13288, France
  10. National Institute for Physics and Nuclear Engineering (NIPNE), Bucharest, Romania
  62. Paul Scherrer Institut, Villigen, Switzerland
  17. CEA, DSM/Irfu, CE-Saclay, Gif-sur-Yvette, France
  23. Institute of Experimental Physics, Slovak Academy of Sciences, Ko拧ice, Slovak Republic
  20. Institut f眉r Experimentalphysik, Universit盲t Hamburg, Hamburg, Germany
  61. IPNL, Universit茅 Claude Bernard Lyon 1, CNRS/IN2P3, Villeurbanne, France
  69. Institut f眉r Teilchenphysik, ETH, Zurich, Switzerland
  30. Department of Physics, University of Lancaster, Lancaster, UK
  51. Department of Particle Physics and Astrophysics, Weizmann Institute, Rehovot, Israel
  59. Institute of Particle and Nuclear Studies, KEK, Tsukuba, Japan
  27. National Centre for Particle Physics, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
  55. Polytechnic University, Tokyo, Japan
  56. Department of Physics, Tokyo Institute of Technology, Tokyo, Japan
  15. Joint Institute for Nuclear Research, Dubna, Russia
  11. Department of Physics, Panjab University, Chandigarh, India
  26. Department of Physics, Jagellonian University, Krak贸w, Poland
  32. School of Physics and Astronomy, Queen Mary, University of London, London, UK
  13. STFC, Rutherford Appleton Laboratory, Didcot, Oxfordshire, UK
  70. Physik-Institut der Universit盲t Z眉rich, Zurich, Switzerland
  14. Institut f眉r Physik, TU Dortmund, Dortmund, Germany
  16. CERN, Geneva, Switzerland
  38. Institute for Information Transmission Problems RAS, Moscow, Russia
  58. Universit脿 del Piemonte Orientale, Novara, and INFN, Turin, Italy
  57. Universit脿 di Torino and INFN, Turin, Italy
  52. Dipartimento di Fisica, Universit脿 di Roma Tre and INFN Roma 3, Rome, Italy
  53. Institute for Nuclear Research and Nuclear Energy, Sofia, Bulgaria
  67. Faculty of General Education, Meiji Gakuin University, Yokohama, Japan
  
• 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

A combination is presented of all inclusive deep inelastic cross sections previously published by the H1 and ZEUS collaborations at HERA for neutral and charged current \(e^{\pm }p\) scattering for zero beam polarisation. The data were taken at proton beam energies of 920, 820, 575 and 460 GeV and an electron beam energy of 27.5 GeV. The data correspond to an integrated luminosity of about 1 fb\(^{-1}\) and span six orders of magnitude in negative four-momentum-transfer squared, \(Q^2\), and Bjorken x. The correlations of the systematic uncertainties were evaluated and taken into account for the combination. The combined cross sections were input to QCD analyses at leading order, next-to-leading order and at next-to-next-to-leading order, providing a new set of parton distribution functions, called HERAPDF2.0. In addition to the experimental uncertainties, model and parameterisation uncertainties were assessed for these parton distribution functions. Variants of HERAPDF2.0 with an alternative gluon parameterisation, HERAPDF2.0AG, and using fixed-flavour-number schemes, HERAPDF2.0FF, are presented. The analysis was extended by including HERA data on charm and jet production, resulting in the variant HERAPDF2.0Jets. The inclusion of jet-production cross sections made a simultaneous determination of these parton distributions and the strong coupling constant possible, resulting in \(\alpha _s(M_Z^2)=0.1183 \pm 0.0009 \mathrm{(exp)} \pm 0.0005\mathrm{(model/parameterisation)} \pm 0.0012\mathrm{(hadronisation)} ^{+0.0037}_{-0.0030}\mathrm{(scale)}\). An extraction of \(xF_3^{\gamma Z}\) and results on electroweak unification and scaling violations are also presented. D. Notz: Deceased.