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Determination of electroweak parameters in polarised deep-inelastic scattering at HERA: H1 Collaboration and H. Spiesberger (Mainz)

  • V. Andreev
  • , A. Baghdasaryan
  • , K. Begzsuren
  • , A. Belousov
  • , A. Bolz
  • , V. Boudry
  • , G. Brandt
  • , V. Brisson
  • , D. Britzger
  • , A. Buniatyan
  • , A. Bylinkin
  • , L. Bystritskaya
  • , A. J. Campbell
  • , K. B. Cantun Avila
  • , K. Cerny
  • , V. Chekelian
  • , J. G. Contreras
  • , J. Cvach
  • , J. B. Dainton
  • , K. Daum
  • C. Diaconu, M. Dobre, G. Eckerlin, S. Egli, E. Elsen, L. Favart, A. Fedotov, J. Feltesse, M. Fleischer, A. Fomenko, J. Gayler, L. Goerlich, N. Gogitidze, M. Gouzevitch, C. Grab, A. Grebenyuk, T. Greenshaw, G. Grindhammer, D. Haidt, R. C.W. Henderson, J. Hladkỳ, D. Hoffmann, R. Horisberger, T. Hreus, F. Huber, M. Jacquet, X. Janssen, A. W. Jung, H. Jung, M. Kapichine, J. Katzy, C. Kiesling, M. Klein, C. Kleinwort, R. Kogler, P. Kostka, J. Kretzschmar, D. Krücker, K. Krüger, M. P.J. Landon, W. Lange, P. Laycock, A. Lebedev, S. Levonian, K. Lipka, B. List, J. List, B. Lobodzinski, E. Malinovski, H. U. Martyn, S. J. Maxfield, A. Mehta, A. B. Meyer, H. Meyer, J. Meyer, S. Mikocki, A. Morozov, K. Müller, Th Naumann, P. R. Newman, C. Niebuhr, G. Nowak, J. E. Olsson, D. Ozerov, C. Pascaud, G. D. Patel, E. Perez, A. Petrukhin, I. Picuric, D. Pitzl, R. Polifka, V. Radescu, N. Raicevic, T. Ravdandorj, P. Reimer, E. Rizvi, P. Robmann, R. Roosen, A. Rostovtsev, M. Rotaru, D. Šálek, D. P.C. Sankey, M. Sauter, E. Sauvan, S. Schmitt, L. Schoeffel, A. Schöning, F. Sefkow, S. Shushkevich, Y. Soloviev, P. Sopicki, D. South, V. Spaskov, A. Specka, H. Spiesberger, M. Steder, B. Stella, U. Straumann, T. Sykora, P. D. Thompson, D. Traynor, P. Truöl, I. Tsakov, B. Tseepeldorj, A. Valkárová, C. Vallée, P. Van Mechelen, Y. Vazdik, D. Wegener, E. Wünsch, J. Žáček, Z. Zhang, R. Žlebčík, H. Zohrabyan, F. Zomer
  • P.N. Lebedev Physical Institute of the Russian Academy of Sciences
  • Yerevan Physics Institute
  • Institute of Physics and Technology of the Mongolian Academy of Sciences
  • University of Heidelberg
  • Georg-August-Universität Göttingen
  • Laboratoire de l'Accélérateur Linéaire
  • University of Birmingham
  • Moscow Institute of Physics and Technology
  • Institute for Theoretical and Experimental Physics
  • c/o DESY
  • Dept. Fis. Ap. CINVESTAV
  • Charles University
  • Max-Planck-Institut für Physik
  • Institute of Physics of the Czech Academy of Sciences
  • University of Liverpool
  • Bergische Universität Gesamthochschule Wuppertal
  • Aix Marseille Université
  • Horia Hulubei National Institute of Physics and Nuclear Engineering
  • Paul Scherrer Institut
  • European Organization for Nuclear Research
  • Inter-University Institute for High Energies ULB-VUB
  • Universite Paris-Saclay
  • Institute for Nuclear Physics
  • IGFL, Université de Lyon, Université Lyon 1
  • ETH Zurich
  • Lancaster University
  • Purdue University
  • Joint Institute for Nuclear Research, Dubna
  • Universität Hamburg
  • Queen Mary University of London
  • RWTH Aachen University
  • Physik-Institut der Universität Zürich
  • University of Montenegro
  • University of Oxford
  • Institute for Information Transmission Problems (RAS)
  • CCLRC Rutherford Appleton Laboratory
  • Université Savoie Mont Blanc
  • Moscow State University
  • Johannes Gutenberg University
  • University Roma Tre
  • Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences
  • Ulaanbaatar University
  • University of Dortmund

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

Résumé

The parameters of the electroweak theory are determined in a combined electroweak and QCD analysis using all deep-inelastic e+p and e-p neutral current and charged current scattering cross sections published by the H1 Collaboration, including data with longitudinally polarised lepton beams. Various fits to Standard Model parameters in the on-shell scheme are performed. The mass of the W boson is determined as mW=80.520±0.115GeV. The axial-vector and vector couplings of the light quarks to the Z boson are also determined. Both results improve the precision of previous H1 determinations based on HERA-I data by about a factor of two. Possible scale dependence of the weak coupling parameters in both neutral and charged current interactions beyond the Standard Model is also studied. All results are found to be consistent with the Standard Model expectations.

langue originaleAnglais
Numéro d'article777
journalEuropean Physical Journal C
Volume78
Numéro de publication9
Les DOIs
étatPublié - 1 sept. 2018

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