In any case, you have a point. Whether multiple analysis, multiple channels or multiple experiments, you have a look-elsewhere effect, and that can easily knock

In any case, you have a point. Whether multiple analysis, multiple channels or multiple experiments, you have a look-elsewhere effect, and that can easily knock off one or two sigmas. If you look at a 10000 possibilities, you will a couple with 3 sigma difference, just by chance. LHC looks at MANY possibilities. For a while, they tried to keep track to quantify the look-elsewhere effect. I think they have given up on that.