| Abstract | A preliminary global NLO QCD analysis of the HERA data is presented.
The following data sets are used in this analysis: the NC and CC inclusive
DIS cross sections obtained from the combination of the measurements
from H1 and ZEUS based on HERA I and HERA II data at the nominal proton beam
energy, the preliminary combined inclusive NC DIS cross sections at reduced
proton beam energies, the inclusive jet cross sections from H1 and ZEUS and
the preliminary combined HERA results on the structure function F2(charm). A
NLO QCD fit is performed on these data sets to determine simultaneously the
proton PDF, the strong coupling constant $\alpha_s$ and the heavy flavour
scheme dependent parameter of the charm quark mass. |
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