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Combination of measurements of inclusive deep inelastic (Formula presented.) scattering cross sections and QCD analysis of HERA data: H1 and ZEUS Collaborations

  • H. Abramowicz
  • , I. Abt
  • , L. Adamczyk
  • , M. Adamus
  • , V. Andreev
  • , S. Antonelli
  • , B. Antunović
  • , V. Aushev
  • , Y. Aushev
  • , A. Baghdasaryan
  • , K. Begzsuren
  • , O. Behnke
  • , A. Behrendt Dubak
  • , U. Behrens
  • , A. Belousov
  • , P. Belov
  • , A. Bertolin
  • , I. Bloch
  • , E. G. Boos
  • , K. Borras
  • V. Boudry, G. Brandt, V. Brisson, D. Britzger, I. Brock, N. H. Brook, R. Brugnera, A. Bruni, A. Buniatyan, P. J. Bussey, A. Bylinkin, L. Bystritskaya, A. Caldwell, A. J. Campbell, K. B. Cantun Avila, M. Capua, C. D. Catterall, F. Ceccopieri, K. Cerny, V. Chekelian, J. Chwastowski, J. Ciborowski, R. Ciesielski, J. G. Contreras, A. M. Cooper-Sarkar, M. Corradi, F. Corriveau, J. Cvach, J. B. Dainton, K. Daum, R. K. Dementiev, R. C.E. Devenish, C. Diaconu, M. Dobre, V. Dodonov, G. Dolinska, S. Dusini, G. Eckerlin, S. Egli, E. Elsen, L. Favart, A. Fedotov, J. Feltesse, J. Ferencei, J. Figiel, M. Fleischer, A. Fomenko, B. Foster, E. Gabathuler, G. Gach, E. Gallo, A. Garfagnini, J. Gayler, A. Geiser, S. Ghazaryan, A. Gizhko, L. K. Gladilin, L. Goerlich, N. Gogitidze, Yu A. Golubkov, M. Gouzevitch, C. Grab, A. Grebenyuk, J. Grebenyuk, T. Greenshaw, I. Gregor, G. Grindhammer, G. Grzelak, O. Gueta, M. Guzik, C. Gwenlan, D. Haidt, W. Hain, R. C.W. Henderson, P. Henkenjohann, J. Hladkỳ, D. Hochman, D. Hoffmann, R. Hori, R. Horisberger, T. Hreus, F. Huber, Z. A. Ibrahim, Y. Iga, M. Ishitsuka, A. Iudin, M. Jacquet, X. Janssen, F. Januschek, N. Z. Jomhari, H. Jung, I. Kadenko, S. Kananov, M. Kapichine, U. Karshon, J. Katzy, M. Kaur, P. Kaur, C. Kiesling, D. Kisielewska, R. Klanner, M. Klein, U. Klein, C. Kleinwort, R. Kogler, N. Kondrashova, O. Kononenko, Ie Korol, I. A. Korzhavina, P. Kostka, A. Kotański, U. Kötz, N. Kovalchuk, H. Kowalski, J. Kretzschmar, D. Krücker, K. Krüger, B. Krupa, O. Kuprash, M. Kuze, M. P.J. Landon, W. Lange, P. Laycock, A. Lebedev, B. B. Levchenko, S. Levonian, A. Levy, V. Libov, S. Limentani, K. Lipka, M. Lisovyi, B. List, J. List, E. Lobodzinska, B. Lobodzinski, B. Löhr, E. Lohrmann, A. Longhin, D. Lontkovskyi, O. Yu Lukina, I. Makarenko, E. Malinovski, J. Malka, H. U. Martyn, S. J. Maxfield, A. Mehta, S. Mergelmeyer, A. B. Meyer, H. Meyer, J. Meyer, S. Mikocki, F. Mohamad Idris, A. Morozov, N. Muhammad Nasir, K. Müller, V. Myronenko, K. Nagano, Th Naumann, P. R. Newman, C. Niebuhr, A. Nikiforov, T. Nobe, D. Notz, G. Nowak, R. J. Nowak, J. E. Olsson, Yu Onishchuk, D. Ozerov, P. Pahl, C. Pascaud, G. D. Patel, E. Paul, E. Perez, W. Perlański, A. Petrukhin, I. Picuric, H. Pirumov, D. Pitzl, B. Pokorny, N. S. Pokrovskiy, R. Polifka, M. Przybycień, V. Radescu, N. Raicevic, T. Ravdandorj, P. Reimer, E. Rizvi, P. Robmann, P. Roloff, R. Roosen, A. Rostovtsev, M. Rotaru, I. Rubinsky, S. Rusakov, M. Ruspa, D. Šálek, D. P.C. Sankey, M. Sauter, E. Sauvan, D. H. Saxon, M. Schioppa, W. B. Schmidke, S. Schmitt*, U. Schneekloth, L. Schoeffel, A. Schöning, T. Schörner-Sadenius, F. Sefkow, L. M. Shcheglova, R. Shevchenko, O. Shkola, S. Shushkevich, Yu Shyrma, I. Singh, I. O. Skillicorn, W. Słomiński, A. Solano, Y. Soloviev, P. Sopicki, D. South, V. Spaskov, A. Specka, L. Stanco, M. Steder, N. Stefaniuk, B. Stella, A. Stern, P. Stopa, U. Straumann, T. Sykora, J. Sztuk-Dambietz, D. Szuba, J. Szuba, E. Tassi, P. D. Thompson, K. Tokushuku, J. Tomaszewska, D. Traynor, A. Trofymov, P. Truöl, I. Tsakov, B. Tseepeldorj, T. Tsurugai, M. Turcato, O. Turkot, J. Turnau, T. Tymieniecka, A. Valkárová, C. Vallée, P. Van Mechelen, Y. Vazdik, A. Verbytskyi, O. Viazlo, R. Walczak, W. A.T. Wan Abdullah, D. Wegener, K. Wichmann, M. Wing, G. Wolf, E. Wünsch, S. Yamada, Y. Yamazaki, J. Žáček, N. Zakharchuk, A. F. Żarnecki, L. Zawiejski, O. Zenaiev, Z. Zhang, B. O. Zhautykov, N. Zhmak, R. Žlebčík, H. Zohrabyan, F. Zomer, D. S. Zotkin
*Corresponding author for this work
  • RWTH Aachen University
  • Max Planck Institute for Physics (Werner Heisenberg Institute)
  • AGH University of Krakow
  • National Centre for Nuclear Research
  • RAS - P.N. Lebedev Physics Institute
  • National Institute for Nuclear Physics
  • University of Banja Luka
  • Heidelberg University 
  • NASU - Institute of Nuclear Research
  • Kyiv National Taras Shevchenko University
  • National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"
  • A. Alikhanian Yerevan Institute of Physics
  • Mongolian Academy of Sciences
  • German Electron Synchrotron
  • University of Montenegro
  • Inter-University Institute for High Energies ULB-VUB
  • St. Petersburg State University
  • Ministry of Education and Science of the Republic of Kazakhstan
  • Laboratoire Leprince-Ringuet
  • University of Göttingen
  • Université Paris-Sud
  • University of Bonn
  • University College London
  • University of Padua
  • University of Birmingham
  • University of Glasgow
  • Moscow Institute of Physics and Technology
  • Alikhanov Institute for Theoretical and Experimental Physics
  • Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional
  • University of Calabria
  • York University Toronto
  • Charles University
  • Institute of Nuclear Physics Polish Academy of Sciences
  • Bielefeld University
  • University of Warsaw
  • University of Lodz
  • Rockefeller University
  • University of Oxford
  • McGill University
  • Czech Academy of Sciences
  • University of Liverpool
  • University of Wuppertal
  • Lomonosov Moscow State University
  • Aix-Marseille Université
  • Horia Hulubei National Institute of Physics and Nuclear Engineering
  • Paul Scherrer Institute
  • Commissariat à l’énergie atomique et aux énergies alternatives
  • Slovak Academy of Sciences
  • University of Hamburg
  • Universite Claude Bernard Lyon 1
  • ETH Zurich - Institute for Particle Physics and Astrophysics (IPA)
  • Tel Aviv University
  • Lancaster University
  • Weizmann Institute of Science
  • High Energy Accelerator Research Organization, Institute of Particle and Nuclear Physics
  • University of Malaya
  • Polytechnic University Japan
  • Institute of Science Tokyo
  • European XFEL
  • Joint Institute for Nuclear Research
  • Panjab University
  • Jagiellonian University in Kraków
  • Queen Mary University of London
  • Rutherford Appleton Laboratory
  • Agensi Nuklear Malaysia
  • University of Zurich
  • TU Dortmund University
  • Humboldt University of Berlin
  • CERN
  • University of Toronto
  • Russian Academy of Sciences
  • University of Eastern Piedmont
  • Université Savoie Mont Blanc
  • BNL
  • National University of Kyiv Mohyla-Academy
  • University of Turin
  • Roma Tre University
  • The University of Tokyo
  • Polish Air Force Academy in Deblin
  • Bulgarian Academy of Sciences
  • National University of Mongolia
  • Meiji Gakuin University
  • Alexander von Humboldt Foundation
  • Kobe University

Research output: Contribution to journalArticlepeer-review

539 Scopus citations

Abstract

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 (Formula presented.) 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(Formula presented.) and span six orders of magnitude in negative four-momentum-transfer squared, (Formula presented.), 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 (Formula presented.). An extraction of (Formula presented.) and results on electroweak unification and scaling violations are also presented.

Original languageEnglish
Article number580
Pages (from-to)1-98
Number of pages98
JournalEuropean Physical Journal C
Volume75
Issue number12
DOIs
StatePublished - 1 Dec 2015

Funding

FundersFunder number
Science and Technology Facilities CouncilST/K001310/1, ST/L001195/1, ST/M001407/1, ST/N000447/1, PP/E000355/1, ST/K00137X/1, ST/H00100X/1, ST/K001418/1, ST/M001474/1, ST/L003112/1, ST/H00100X/2, ST/K000705/1

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