The LHC's ATLAS detector is finding many pairs of photons with a total energy of 115 GeV. This is usually a sign that the collision produced a 115 GeV particle which decayed into a photon pair. There are suspicions that this particle is the long-predicted Higgs boson, because many models estimate the Higgs' mass at 115 GeV.

However, the percentage of collisions which result in this phenomenon isn't in agreement with any of our current models of how the Higgs boson behaves. It's not certain that the new 115 GeV particle is in fact the Higgs; if it is, the Higgs models will need more revising.