As discussed a few years ago around the physics blogosphere, one possibility for new physics at the LHC was a $720$ GeV state that had something to do with $Z'$ bosons. Evidence for $Z'$ type anomalies, of the non standard kind, has grown in recent years. Now we hear that the only possible new physics seen by CMS is in fact a three event HSCP signal somewhere near $720$ GeV.
Not much to speak of, three events, but definitely something to ask ATLAS about.
6 years ago