H1 and ZEUS

Combination of F_2^{cc} from DIS measurements at HERA

Reference Preliminary for PDF4LHC, October 2009
Figures  (1)  (2)  (3)  (4)  (5)  (6)  (7)  (8)  (9) (9)
Contact Group webpage
Abstract The charm contribution F_2^{cc} to the proton structure F_2 is determined. The results of D meson production cross section measurements are combined with the measurements using semi-leptonic dacays into muons as well as the inclusive track measurements. The correlations of the systematic uncertainties between different measurements are taken into account. The data cover the kinematic range of photon virtuality 2 < Q^2 < 1000 GeV^2 and Bjorken scaling variable 10^-5 < x < 10^-1.
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