Journal article
D* production in deep inelastic scattering at HERA
Physics letters. B, Vol.407(3), pp.402-418
1997
DOI: 10.1016/S0370-2693(97)00847-2
Abstract
This paper presents measurements of D*f± production in deep inelastic scattering from collisions between 27.5GeV positrons and 820GeV protons. The data have been taken with the ZEUS detector at HERA. The decay channel D*+ → (D0 → K-π+)π+ (+c.c.) has been used in the study. The e+p cross section for inclusive D*± production with 5 < Q2 < 100GeV2 and y < 0.7 is 5.3±1.0±0.8nb in the kinematic region 1.3 < pT(D*±) < 9.0GeV and |η(D*±) | < 1.5. Differential cross sections as functions of pT(D*±), η(D*±), W and Q2 are compared with next-to-leading order QCD calculations based on the photon-gluon fusion production mechanism. After an extrapolation of the cross section to the full kinematic region in pT(D*±) and η(D*±), the charm contribution Fcc̄2(x,Q2) to the proton structure function is determined for Bjorken x between 2 · 10-4 and 5 · 10-3.
Details
- Title: Subtitle
- D* production in deep inelastic scattering at HERA
- Creators
- ZEUS CollaborationU. Mallik (Contributor)J. Repond (Contributor)
- Resource Type
- Journal article
- Publication Details
- Physics letters. B, Vol.407(3), pp.402-418
- Publisher
- Elsevier B.V
- DOI
- 10.1016/S0370-2693(97)00847-2
- ISSN
- 0370-2693
- eISSN
- 1873-2445
- Language
- English
- Date published
- 1997
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984627348002771
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