ATLAS have released a conference note with new results for Higgs decays to ZZ and then two leptons and two neutrinos in the final states. The update uses 2.05/fb compared to 1.04/fb as first shown at the Europhysics conference in July. This is not the most exciting channel for discovery potential because it does not cover the light mass region, but it is good to see new data appearing now. No significant excesses are seen. Here is the main plot.
The note is aimed at the Hadron Collider Physics conference starting 16th November in Paris when we are already expecting to see a full LHC combination of Higgs searches in all channels based on data from the Lepton-Photon meeting.
As the 2011 proton physics run enters its last week, nearly 5/fb have been collected per experiment. That is enough data to give good observation potential at all possible Higgs masses except the crucial 115 GeV – 125 GeV light mass region. We may yet have to wait a few weeks before plots at that amount of data emerge.
Update 23-Oct-2011: Both ATLAS and CMS now have over 5/fb recorded.