Abstract
The production of D-+/-- and D-0-mesons has been measured with the ZEUS detector at HERA using an integrated luminosity of 133.6 pb(-1). The measurements cover the kinematic range 5 <Q(2) <1000 GeV2, 0.02 <y <0.7, 1.5 <p(T)(D) <15 GeV and |eta(D)| <1.6. Combinatorial background to the D-meson signals is reduced by using the ZEUS microvertex detector to reconstruct displaced secondary vertices. Production cross sections are compared with the predictions of next-to-leading-order QCD, which is found to describe the data well. Measurements are extrapolated to the full kinematic phase space in order to obtain the open-charm contribution, F-2(c (c) over bar), to the proton structure function, F-2.
Original language | English |
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Pages (from-to) | 171-188 |
Number of pages | 18 |
Journal | The European Physical Journal C |
Volume | 63 |
Issue number | 2 |
DOIs | |
Publication status | Published - Sept-2009 |
Externally published | Yes |
Keywords
- CENTRAL TRACKING DETECTOR
- ZEUS BARREL CALORIMETER
- O(ALPHA-S) CORRECTIONS
- PERTURBATION-THEORY
- VERTEX DETECTOR
- CROSS-SECTIONS
- DESIGN
- ELECTROPRODUCTION
- QUARK
- DISTRIBUTIONS