Argh!

Mark Neubauer gave a talk on "Observation of WZ Production at CDF," which included a short bit at the end on the limits they got for ZZ production. Expected background was .009 events, expected ZZ to 4 leptons was about 2.6 events; we saw 1 event so all we can give is a limit rather than an observation. They used a clever scheme to get around missing bits of lepton coverage by looking at stiff tracks (with minimal calorimeter energy) going into cracks as a kind of generic lepton: could be a muon, could be an electron, almost certainly not a hadron. They didn't use forward muons from the forward muon detector! And wouldn't you know it, in the 1 event they found, one of their "generic muons" was pointing right at a forward muon stub. Be nice if they'd mentioned it: a little credit would have been good for us lonely forward muon folks. We spotted it right away in the event display.