Announcements

• Zoltan Nagy

NLO QCD Evolution in the Fully Unintegrated Form

• Stanislaw Jadach

Abstract: The next-to-leading order (NLO) evolution of the parton distribution functions (PDF's) in QCD is the "industry standard'' in the lepton-hadron and hadron-hadron collider data analysis. The traditional NLO DGLAP evolution is formulated for inclusive (integrated) PDFs and is done using inclusive NLO kernels. In the ongoing project, called KRKMC, NLO DGLAP evolution is performed for the 1st time for the exclusive multiparton (fully unintegrated) distributions with the help of the exclusive NLO kernels, which are calculated in the Curci-Furmanski-Petronzio scheme. With high statistics tests (~10^9 events) it is shown that the new scheme works perfectly well in practice and is equivalent at the inclusive level with the traditional inclusive NLO DGLAP evolution. Once completed, it is aimed as a building block for the NLO parton shower Monte Carlo, for W/Z production at LHC and for $ep$ scattering, as well as a starting point for other perturbative QCD based Monte Carlo projects. Related paper: http://arxiv.org/abs/0905.1399