CMS experiment

Bump in LHC Data Has Physicists Electrified

Bump in LHC Data Has Physicists Electrified

In December, the ATLAS and CMS experiments presented a sneak peek of the new data collected during the first few months of the Large Hadron Collider’s enormously energetic second run. Both experiments reported a small excess of photon pairs with a combined mass around 750 GeV. This small excess could be the first hint of a new massive particle that spits out two photons as it decays, or it might be a coincidental fluctuation that will disappear with more information.