ELI5: Presumably this was a result of the LHC's power upgrade to 13 TeV. If so, should they now be able to repeatedly get these results again and again?
> Presumably this was a result of the LHC's power upgrade to 13 TeV
Eh... despite what the other guy is saying, you can't really say this for sure. These bumps appear in a region that was accessible during Run 1 at 7 and 8 TeV.
If it is something real, and not just a statistical fluctuation (that's a big if), then it would have to be e.g. some decay product of a much heavier particle to account for why it wasn't seen during Run 1.
> If so, should they now be able to repeatedly get these results again and again?
Again, depends if it's a real effect or a fluctuation.