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Leif Jönsson

Leif Jönsson

Professor emeritus

Leif Jönsson

Elastic and proton-dissociative photoproduction of J/psi mesons at HERA

Author

  • C. Alexa
  • V. Andreev
  • A. Baghdasaryan
  • S. Baghdasaryan
  • W. Bartel
  • K. Begzsuren
  • A. Belousov
  • P. Belov
  • V. Boudry
  • I. Bozovic-Jelisavcic
  • G. Brandt
  • M. Brinkmann
  • V. Brisson
  • D. Britzger
  • A. Buniatyan
  • A. Bylinkin
  • L. Bystritskaya
  • A. J. Campbell
  • K. B. Cantun Avila
  • F. Ceccopieri
  • K. Cerny
  • V. Chekelian
  • J. G. Contreras
  • J. Cvach
  • J. B. Dainton
  • K. Daum
  • E. A. De Wolf
  • C. Diaconu
  • M. Dobre
  • V. Dodonov
  • A. Dossanov
  • G. Eckerlin
  • S. Egli
  • E. Elsen
  • L. Favart
  • A. Fedotov
  • R. Felst
  • J. Feltesse
  • J. Ferencei
  • D. -J. Fischer
  • M. Fleischer
  • A. Fomenko
  • E. Gabathuler
  • J. Gayler
  • S. Ghazaryan
  • A. Glazov
  • L. Goerlich
  • N. Gogitidze
  • M. Gouzevitch
  • C. Grab
  • A. Grebenyuk
  • T. Greenshaw
  • G. Grindhammer
  • S. Habib
  • D. Haidt
  • R. C. W. Henderson
  • E. Hennekemper
  • M. Herbst
  • G. Herrera
  • M. Hildebrandt
  • K. H. Hiller
  • J. Hladky
  • D. Hoffmann
  • R. Horisberger
  • T. Hreus
  • F. Huber
  • M. Jacquet
  • X. Janssen
  • Leif Jönsson
  • H. Jung
  • M. Kapichine
  • C. Kiesling
  • M. Klein
  • C. Kleinwort
  • R. Kogler
  • P. Kostka
  • M. Kraemer
  • J. Kretzschmar
  • K. Krueger
  • M. P. J. Landon
  • W. Lange
  • P. Laycock
  • A. Lebedev
  • S. Levonian
  • K. Lipka
  • B. List
  • J. List
  • B. Lobodzinski
  • R. Lopez-Fernandez
  • V. Lubimov
  • E. Malinovski
  • H. -U. Martyn
  • S. J. Maxfield
  • A. Mehta
  • A. B. Meyer
  • H. Meyer
  • J. Meyer
  • S. Mikocki
  • I. Milcewicz-Mika
  • A. Morozov
  • J. V. Morris
  • K. Mueller
  • Th. Naumann
  • P. R. Newman
  • C. Niebuhr
  • D. Nikitin
  • G. Nowak
  • K. Nowak
  • J. E. Olsson
  • D. Ozerov
  • P. Pahl
  • V. Palichik
  • M. Pandurovic
  • C. Pascaud
  • G. D. Patel
  • E. Perez
  • A. Petrukhin
  • I. Picuric
  • H. Pirumov
  • D. Pitzl
  • R. Placakyte
  • B. Pokorny
  • R. Polifka
  • V. Radescu
  • N. Raicevic
  • T. Ravdandorj
  • P. Reimer
  • E. Rizvi
  • P. Robmann
  • R. Roosen
  • A. Rostovtsev
  • M. Rotaru
  • J. E. Ruiz Tabasco
  • S. Rusakov
  • D. Salek
  • D. P. C. Sankey
  • M. Sauter
  • E. Sauvan
  • S. Schmitt
  • L. Schoeffel
  • A. Schoening
  • H. -C. Schultz-Coulon
  • F. Sefkow
  • S. Shushkevich
  • Y. Soloviev
  • P. Sopicki
  • D. South
  • V. Spaskov
  • A. Specka
  • Z. Staykova
  • M. Steder
  • B. Stella
  • G. Stoicea
  • U. Straumann
  • T. Sykora
  • P. D. Thompson
  • D. Traynor
  • P. Truoel
  • I. Tsakov
  • B. Tseepeldorj
  • J. Turnau
  • A. Valkarova
  • C. Vallee
  • P. Van Mechelen
  • Y. Vazdik
  • D. Wegener
  • E. Wuensch
  • J. Zacek
  • J. Zalesak
  • Z. Zhang
  • R. Zlebcik
  • H. Zohrabyan
  • F. Zomer

Summary, in English

Cross sections for elastic and proton-dissociative photoproduction of J/psi mesons are measured with the H1 detector in positron-proton collisions at HERA. The data were collected at ep centre-of-mass energies root s approximate to 318 GeV and root s approximate to 225 GeV, corresponding to integrated luminosities of L = 130 pb(-1) and L = 10.8 pb(-1), respectively. The cross sections are measured as a function of the photon-proton centre-of-mass energy in the range 25 < W-gamma p < 110 GeV. Differential cross sections d sigma/dt, where t is the squared four-momentum transfer at the proton vertex, are measured in the range vertical bar t vertical bar < 1.2 GeV2 for the elastic process and vertical bar t vertical bar < 8 GeV2 for proton dissociation. The results are compared to other measurements. The W-gamma p and t-dependences are parametrised using phenomenological fits.

Department/s

  • Particle and nuclear physics

Publishing year

2013

Language

English

Publication/Series

European Physical Journal C. Particles and Fields

Volume

73

Issue

6

Document type

Journal article

Publisher

Springer

Topic

  • Subatomic Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 1434-6044