Measurement of D mesons production in deep inelastic scattering at HERA

Link:
Erscheinungsjahr:
2007
Medientyp:
Text
Schlagwort:
  • Lepton-Nucleon Scattering
Beschreibung:
  • Charm production in deep inelastic scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 82pb(-1). Charm has been tagged by reconstructing D{*}(+), D-0, D+ and D-s(+) (+c.c.) charm mesons. The charm hadrons were measured in the kinematic range p(T)(D{*}(+), D-0, D+) > 3GeV, p(T)(D-s(+)) > 2GeV and vertical bar eta(D)vertical bar < 1.6 for 1.5 < Q(2) < 1000GeV(2) and 0.02 < y < 0.7. The production cross sections were used to extract charm fragmentation ratios and the fraction of c quarks hadronising in to a particular charm meson in the kinematic range considered. The cross sections were compared to the predictions of next-to-leading-order QCD, and extrapolated to the full kinematic region in p(T)(D) and eta(D) in order to determine the open-charm contribution, F-2(c (c) over bar) ( x,Q(2)), to the proton structure function F-2.
Lizenz:
  • info:eu-repo/semantics/closedAccess
Quellsystem:
Forschungsinformationssystem der UHH

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Quelldatensatz
oai:www.edit.fis.uni-hamburg.de:publications/44032831-bb8e-4396-80d3-04e615cb9530