Ben Cooper (University of London (GB))
The production of heavy flavour in association with a W or Z boson represents an important process to study QCD. High precision is achieved in measurements of differential cross sections and comparisons are made to stateoftheart NLO QCD calculations. Measurement of W+c production cross section has a unique sensitivity to the strangequark density, which is poorly known at low x. W+b production, on the other hand, probes the bquark production by higher order QCD processes. Cross sections are measured differentially as a function of jet multiplicity and transverse momentum of the leading bjet, for the W+b measurement and as a function of lepton pseudorapidity for the W+c measurement.
Uta Klein (University of Liverpool (GB))