Combination of differential D∗± cross-section measurements in deep-inelastic ep scattering at HERA
Open access
Date
2015-09Type
- Journal Article
Abstract
H1 and ZEUS have published single-differential cross sections for inclusive D ∗±-meson production in deep-inelastic ep scattering at HERA from their respective final data sets. These cross sections are combined in the common visible phase-space region of photon virtuality Q 2 > 5 GeV2, electron inelasticity 0.02 < y < 0.7 and the D ∗± meson’s transverse momentum p T(D ∗) > 1.5 GeV and pseudorapidity |η(D ∗)| < 1.5. The combination procedure takes into account all correlations, yielding significantly reduced experimental uncertainties. Double-differential cross sections d2 σ/dQ 2dy are combined with earlier D ∗± data, extending the kinematic range down to Q 2 > 1.5 GeV2. Perturbative next-to-leading-order QCD predictions are compared to the results. Show more
Permanent link
https://doi.org/10.3929/ethz-b-000105233Publication status
publishedExternal links
Journal / series
Journal of High Energy PhysicsVolume
Pages / Article No.
Publisher
SpringerSubject
Lepton-Nucleon Scattering; QCD; Heavy quark production; Charm physicsOrganisational unit
08803 - Grab, Christoph (Tit.Prof.)
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