Apparently the Higgs boson has not been found in the energy range predicted to be most amenable to its detection, casting doubt on its existence. The search now moves to lower and higher energy ranges, in which Higgs is less likely to be found.
According to James Gilles, the director of communication for Cern, it is now that the real work starts.
"In some mass areas, the Higgs is much easier to see than in others so in some mass areas it was always going to be easier to find it or exclude it quite quickly," he told BBC News.
"And now what we're being left with is the harder part; the regions where it's harder for us to see and harder to pick out the signal from the background."
The ranges left after these results suggest that the Higgs is either quite a light particle, below about 145 GeV, or a heavy one, above 466 GeV. A couple of islands in the middle, around 250 GeV, have not been fully excluded yet.