Two new subatomic particles discovered at CERN
In case people are wondering about the impact of this, it's not very interesting (to non particle physcists) unless something unexpected about these particles is found later, as these particles were predicted by the Standard Model. The exact mass splittings, of course, are useful to validate (and further improve) theoretical models of QCD.What I find more interesting is that LHCb is licensing their eprint as CC-BY-4.0. I wonder how PRL feels about this.