Mainz 2014 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 120: QCD 2
T 120.4: Vortrag
Donnerstag, 27. März 2014, 17:35–17:50, GFH 01-721
Combination of D* Differential Cross Section Measurements in Deep-Inelastic ep Scattering at HERA — •Oleksandr Zenaiev — DESY, Notkestraße 85, 22607 Hamburg, Germany
H1 and ZEUS have recently published differential cross sections for D* production from their respective final data sets, for photon virtualities Q2 > 5 GeV2. These cross sections are combined at the visible cross section level, taking into account all relevant correlations. This signi*cantly reduces the experimental uncertainties, while theory uncertainties from the combination procedure remain almost negligible. To extend the kinematic range down to Q2 > 1.5 GeV2, double differential cross sections are also combined with a subset of earlier D* data. NLO QCD predictions are compared to the results.