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Measurement of charged particle multiplicity distributions in DIS at HERA and its implication to entanglement entropy of partons: H1 Collaboration

  • V. Andreev
  • , A. Baghdasaryan
  • , A. Baty
  • , K. Begzsuren
  • , A. Belousov
  • , A. Bolz
  • , V. Boudry
  • , G. Brandt
  • , D. Britzger
  • , A. Buniatyan
  • , L. Bystritskaya
  • , A. J. Campbell
  • , K. B.Cantun Avila
  • , K. Cerny
  • , V. Chekelian
  • , Z. Chen
  • , J. G. Contreras
  • , J. Cvach
  • , J. B. Dainton
  • , K. Daum
  • A. Deshpande, C. Diaconu, G. Eckerlin, S. Egli, E. Elsen, L. Favart, A. Fedotov, J. Feltesse, M. Fleischer, A. Fomenko, C. Gal, 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, W. Li, B. Lobodzinski, E. Malinovski, H. U. Martyn, S. J. Maxfield, A. Mehta, A. B. Meyer, H. Meyer, J. Meyer, S. Mikocki, M. M. Mondal, A. Morozov, K. Müller, Th Naumann, P. R. Newman, C. Niebuhr, G. Nowak, J. E. Olsson, D. Ozerov, S. Park, 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. P.C. Sankey, M. Sauter, E. Sauvan, S. Schmitt, B. A. Schmookler, L. Schoeffel, A. Schöning, F. Sefkow, S. Shushkevich, Y. Soloviev, P. Sopicki, D. South, V. Spaskov, A. Specka, M. Steder, B. Stella, U. Straumann, T. Sykora, P. D. Thompson, D. Traynor, P. Truöl, B. Tseepeldorj, Z. Tu, T. Ullrich, A. Valkárová, C. Vallée, P. Van Mechelen, D. Wegener, E. Wünsch, J. Žáček, J. Zhang, Z. Zhang, R. Žlebčík, H. Zohrabyan, F. Zomer
  • P.N. Lebedev Physical Institute of the Russian Academy of Sciences
  • A. Alikhanian Yerevan Institute of Physics
  • Rice University
  • Mongolian Academy of Sciences
  • Heidelberg University 
  • CNRS-IN2P3
  • University of Göttingen
  • Max Planck Institute for Physics (Werner Heisenberg Institute)
  • University of Birmingham
  • Alikhanov Institute for Theoretical and Experimental Physics
  • German Electron Synchrotron
  • Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional
  • Palacký University Olomouc
  • Shandong University
  • Czech Academy of Sciences
  • University of Liverpool
  • University of Wuppertal
  • Aix-Marseille Université
  • Paul Scherrer Institute
  • CERN
  • Inter-University Institute for High Energies ULB-VUB
  • Centre d'Etudes de Saclay
  • Stony Brook University
  • Institute of Nuclear Physics
  • Universite Claude Bernard Lyon 1
  • Swiss Federal Institute of Technology Zurich
  • Lancaster University
  • IN2P3/CNRS
  • Purdue University
  • Joint Institute for Nuclear Research
  • University of Hamburg
  • Queen Mary University of London
  • RWTH Aachen University
  • University of Zurich
  • University of Montenegro
  • Charles University
  • University of Oxford
  • Russian Academy of Sciences
  • Horia Hulubei National Institute of Physics and Nuclear Engineering
  • STFC Rutherford Appleton Laboratory
  • Université Savoie Mont Blanc
  • Lomonosov Moscow State University
  • Roma Tre University
  • National University of Mongolia
  • Brookhaven National Laboratory
  • TU Dortmund University

Research output: Contribution to journalArticlepeer-review

48 Scopus citations

Abstract

Charged particle multiplicity distributions in positron-proton deep inelastic scattering at a centre-of-mass energy s=319 GeV are measured. The data are collected with the H1 detector at HERA corresponding to an integrated luminosity of 136 pb- 1. Charged particle multiplicities are measured as a function of photon virtuality Q2, inelasticity y and pseudorapidity η in the laboratory and the hadronic centre-of-mass frames. Predictions from different Monte Carlo models are compared to the data. The first and second moments of the multiplicity distributions are determined and the KNO scaling behaviour is investigated. The multiplicity distributions as a function of Q2 and the Bjorken variable xbj are converted to the hadron entropy Shadron, and predictions from a quantum entanglement model are tested.

Original languageEnglish
Article number212
JournalEuropean Physical Journal C
Volume81
Issue number3
DOIs
StatePublished - Mar 2021

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