Published May 2012 | Version v1
Journal article

Measurement of inclusive and dijet D* meson cross sections in photoproduction at HERA

Creators

  • 1. National Institute for Physics and Nuclear Engineering (NIPNE), Bucharest (Romania)
  • 2. Lebedev Physical Institute, Moscow (Russian Federation)
  • 3. University of Montenegro, Faculty of Science, Podgorica (Montenegro)
  • 4. Yerevan Physics Institute, Yerevan (Armenia)
  • 5. CNRS/IN2P3, LPNHE, Universite Pierre et Marie Curie Paris 6, Universite Denis Diderot Paris 7, Paris (France)
  • 6. DESY, Hamburg (Germany)
  • 7. Institute of Physics and Technology of the Mongolian Academy of Sciences, Ulaanbaatar (Mongolia)
  • 8. CNRS/IN2P3, LAL, Universite Paris-Sud, Orsay (France)
  • 9. TU Dortmund, Institut fuer Physik, Dortmund (Germany)
  • 10. CNRS/IN2P3, LLR, Ecole Polytechnique, Palaiseau (France)
  • 11. University of Belgrade, Vinca Institute of Nuclear Sciences, Belgrade (Serbia)
  • 12. University of Birmingham, School of Physics and Astronomy, Birmingham (United Kingdom)
  • 13. Slovak Academy of Sciences, Institute of Experimental Physics, Kosice (Slovakia)
  • 14. Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany)
  • 15. Max-Planck-Institut fuer Physik, Muenchen (Germany)
  • 16. Institute for Theoretical and Experimental Physics, Moscow (Russian Federation)
  • 17. CINVESTAV, Departamento de Fisica Aplicada, Merida, Yucatan (Mexico)
  • 18. Universiteit Antwerpen, Antwerpen (Belgium)
  • 19. Inter-University Institute for High Energies ULB-VUB, Brussels (Belgium)
  • 20. Charles University, Faculty of Mathematics and Physics, Praha (Czech Republic)
  • 21. Chilton, Rutherford Appleton Laboratory, Didcot (United Kingdom)
  • 22. Academy of Sciences of the Czech Republic, Institute of Physics, Praha (Czech Republic)
  • 23. University of Liverpool, Department of Physics, Liverpool (United Kingdom)
  • 24. Universitaet Wuppertal, Fachbereich C, Wuppertal (Germany)
  • 25. CNRS/IN2P3, CPPM, Aix-Marseille Univ, Marseille (France)
  • 26. Universitaet Hamburg, Institut fuer Experimentalphysik, Hamburg (Germany)
  • 27. Paul Scherrer Institut, Villigen (Switzerland)
  • 28. CE-Saclay, CEA, DSM/Irfu, Gif-sur-Yvette (France)
  • 29. Institute for Nuclear Physics, Cracow (Poland)
  • 30. ETH, Institut fuer Teilchenphysik, Zuerich (Switzerland)
  • 31. University of Lancaster, Department of Physics, Lancaster (United Kingdom)
  • 32. Universitaet Heidelberg, Kirchhoff-Institut fuer Physik, Heidelberg (Germany)
  • 33. DESY, Zeuthen (Germany)
  • 34. CINVESTAV IPN, Departamento de Fisica, Mexico City (Mexico)
  • 35. Universitaet Heidelberg, Physikalisches Institut, Heidelberg (Germany)
  • 36. University of Lund, Physics Department, Lund (Sweden)
  • 37. Joint Institute for Nuclear Research, Dubna (Russian Federation)
  • 38. University of London, School of Physics and Astronomy, Queen Mary, London (United Kingdom)
  • 39. I. Physikalisches Institut der RWTH, Aachen (Germany)
  • 40. Physik-Institut der Universitaet Zuerich, Zuerich (Switzerland)
  • 41. INFN Roma (IT)
  • 42. Universita di Roma Tre, Dipartimento di Fisica, Roma (IT)
  • 43. Charles University, Faculty of Mathematics and Physics, Praha (CZ)
  • 44. Universiteit Antwerpen, Antwerpen (BE)
  • 45. Inter-University Institute for High Energies ULB-VUB, Brussels (BE)
  • 46. Institute for Nuclear Research and Nuclear Energy, Sofia (BG)

Description

The inclusive photoproduction of D * mesons and of D *-tagged dijets is investigated with the H1 detector at the ep collider HERA. The kinematic region covers small photon virtualities Q 2<2 GeV2 and photon-proton centre-of-mass energies of 1001.8 GeV. The heavy quark production process is further investigated in events with at least two jets with transverse momentum pT (jet) >3.5 GeV each, one containing the D* meson. Differential cross sections for D*-tagged dijet production and for correlations between the jets are measured in the range vertical stroke η(D*) vertical stroke <1.5 and pT(D *)>2.1 GeV. The results are compared with predictions from Monte Carlo simulations and next-to-leading order perturbative QCD calculations. (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1140/epjc/s10052-012-1995-0

Additional details

Publishing Information

Journal Title
European Physical Journal. C
Journal Volume
72
Journal Issue
5
Journal Page Range
p. 1-18
ISSN
1434-6044

Optional Information

Collaborations
H1 Collaboration