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Leif Jönsson

Leif Jönsson

Professor emeritus

Leif Jönsson

Diffractive open charm production in deep-inelastic scattering and photoproduction at HERA

Author

  • A. Aktas
  • V. Andreev
  • T. Anthonis
  • B. Antunovic
  • S. Aplin
  • A. Asmone
  • A. Astvatsatourov
  • A. Babaev
  • S. Backovic
  • A. Baghdasaryan
  • P. Baranov
  • E. Barrelet
  • W. Bartel
  • S. Baudrand
  • M. Beckingham
  • K. Begzsuren
  • O. Behnke
  • O. Behrendt
  • A. Belousov
  • N. Berger
  • J. C. Bizot
  • M.-O. Boenig
  • V. Boudry
  • I. Bozovic-Jelisavcic
  • J. Bracinik
  • G. Brandt
  • M. Brinkmann
  • V. Brisson
  • D. Bruncko
  • F. W. Buesser
  • A. Bunyatyan
  • G. Buschhorn
  • L. Bystritskaya
  • A. J. Campbell
  • K. B. Cantun Avila
  • F. Cassol-Brunner
  • K. Cerny
  • V. Cerny
  • V. Chekelian
  • J. G. Contreras
  • J. A. Coughlan
  • B. E. Cox
  • G. Cozzika
  • J. Cvach
  • J. B. Dainton
  • K. Daum
  • Y. de Boer
  • B. Delcourt
  • M. Del Degan
  • A. De Roeck
  • E. A. De Wolf
  • C. Diaconu
  • V. Dodonov
  • A. Dubak
  • G. Eckerlin
  • V. Efremenko
  • S. Egli
  • R. Eichler
  • F. Eisele
  • A. Eliseev
  • E. Elsen
  • S. Essenov
  • A. Falkewicz
  • P. J. W. Faulkner
  • L. Favart
  • A. Fedotov
  • R. Felst
  • J. Feltesse
  • J. Ferencei
  • L. Finke
  • M. Fleischer
  • G. Flucke
  • Magnus Hansson
  • Leif Jönsson
  • Albert Knutsson
  • Sakar Osman
Show all

Summary, in English

Measurements are presented of diffractive open charm production at HERA. The event topology is given by where the system X contains at least one charmed hadron and is well separated by a large rapidity gap from a leading low-mass proton remnant system Y. Two analysis techniques are used for the cross section measurements. In the first, the charm quark is tagged by the reconstruction of a D*±(2010) meson. This technique is used in deep-inelastic scattering (DIS) and photoproduction (γp). In the second, a method based on the displacement of tracks from the primary vertex is used to measure the open charm contribution to the inclusive diffractive cross section in DIS. The measurements are compared with next-to-leading order QCD predictions based on diffractive parton density functions previously obtained from a QCD analysis of the inclusive diffractive cross section at H1. A good agreement is observed in the full kinematic regime, which supports the validity of QCD factorization for open charm production in diffractive DIS and γp.

Department/s

  • Particle and nuclear physics

Publishing year

2007

Language

English

Pages

1-20

Publication/Series

European Physical Journal C. Particles and Fields

Volume

50

Issue

1

Document type

Journal article

Publisher

Springer

Topic

  • Subatomic Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 1434-6044