Combination of measurements of inclusive deep inelastic $${e^{\pm }p}$$ e ± p scattering cross sections and QCD analysis of HERA data
Year: 2015
Type: article
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 $$e^{\pm }p$$ 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.
Source: The European Physical Journal C
Authors: 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
Institutions: Tel Aviv University, RWTH Aachen University, Max Planck Institute for Physics, AGH University of Krakow, National Centre for Nuclear Research, P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, University of Banja Luka, National Academy of Sciences of Ukraine, Taras Shevchenko National University of Kyiv, Heidelberg University, Institute for Nuclear Research, A. Alikhanyan National Laboratory, Mongolian Academy of Sciences, Institute of Physics and Technology, Deutsches Elektronen-Synchrotron DESY, University of Montenegro, University of Antwerp, Interuniversity Institute for High Energies, Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Institute of Physics and Technology, Centre National de la Recherche Scientifique, École Polytechnique, Institut National de Physique Nucléaire et de Physique des Particules, University of Göttingen, Université Paris-Sud, University of Bonn, University College London, University of Padua, University of Birmingham, University of Glasgow, Institute for Theoretical and Experimental Physics, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, University of Calabria, York University, Charles University, Institute of Nuclear Physics, Polish Academy of Sciences, Bielefeld University, University of Warsaw, University of Oxford, McGill University, Czech Academy of Sciences, FZU - Institute of Physics of the Czech Academy of Sciences, University of Liverpool, University of Wuppertal, Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Aix-Marseille Université, Centre de physique des particules de Marseille, Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering, Paul Scherrer Institute, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Institut de Recherche sur les Lois Fondamentales de l'Univers, Slovak Academy of Sciences, Institute of Experimental Physics of the Slovak Academy of Sciences, Universität Hamburg, Lyon 1 Université, Institute of Nuclear Physics of Lyon, ETH Zurich, Lancaster University, Weizmann Institute of Science, High Energy Accelerator Research Organization, Institute of Particle and Nuclear Studies, University of Malaya, Tokyo Polytechnic University, Tokyo Institute of Technology, Joint Institute for Nuclear Research, Panjab University, Jagiellonian University, University of London, Queen Mary University of London, Rutherford Appleton Laboratory, University of Zurich, TU Dortmund University, European Organization for Nuclear Research, Institute for Information Transmission Problems, Istituto Nazionale di Fisica Nucleare, Sezione di Torino, University of Turin, Roma Tre University, Istituto Nazionale di Fisica Nucleare, Sezione di Roma Tre, Institute for Nuclear Research and Nuclear Energy, Meiji Gakuin University, Ferris University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W588204548