0) CMS and ATLAS contacts have meet several times in the past monthes, and have reach agreement of common simple cuts, >>> ptl1/l2 > 20, |etal1/l2|<2.5 MET > 30 mll>12 pt_jet_max < 30 for |eta|<3. >>>> and discussion on common parameters and basic programs to be used. 1) Programs for H->WW->lnulnu Studies HNNLO (ggF) team: Massimiliano Grazzini, Daniel de Florian, ... Link: http://theory.fi.infn.it/grazzini/codes.html FEHIPro (ggF) team: C. Anastasiou, F. Petriello, K. Melnikov, S. Bucherer, ... Link: http://www.phys.ethz.ch/~pheno HAWK (VBF) team: A. Mueck, A. Denner, S. Dittmaier Link: http://heptools.inp.demokritos.gr/node/2920 Also M. Spira has several very useful NLO Higgs code: HIGLU - gg->H VV2H - VBF MCFM (Will only use for quick cross-checks) 2) Working orders: a) H->WW ggF first with a good understanding b) H->WW VBF to get reasonable results c) Backgrounds, starting with WW 3) Comments about background studies It is a difficult tasks with a lot of works, certainly additional man powers are needed for it. Also how to integrate them into Higgs cross-section, it is not clear at all. In principle, studies cross-sections of SM backgrounds are common and could be used by many different data analysis, maybe a joint efforts better? 4) Questions: a) How data analysis could use our results? This will result in how we provide correction factors. For examples: a) Experiments may produce MC samples with "pre-selections", to get right acceptance, rejected events need to be reweight! => Provide normalized reweight functions? b) Experiments have different MC generators, our k-factors are based on a particular program such HNNLO which may have difference due to different parton level distributions. b) Common tools for experiments? For instance, in case K-factor is depending on jet, a common tool for jet?