Speaker
Mykhailo Lisovyi
(Deutsches Elektronen-Synchrotron (DE))
Description
H1 and ZEUS have recently published differential cross sections for $D^\star$ production from their respective final data sets, for photon virtualities $Q^2 > 5$ GeV$^2$. These cross sections are combined at the visible cross section level, taking into account all relevant correlations. This significantly reduces the experimental uncertainties, while theory uncertainties from the combination procedure remain almost negligible. To extend the kinematic range down to $Q^2 > 1.5$ GeV$^2$, double differential cross sections are also combined with a subset of earlier $D^\star$ data. NLO QCD predictions are compared to the results.
Authors
Matthew Wing
(UCL)
Stefan Schmitt
(Deutsches Elektronen-Synchrotron (DE))
