LHC finds tantalising hints of new physics

Researchers at the Large Hadron Collider (LHC) have seen early hints of an undiscovered particle or interaction. More research is needed, but the results suggest an imbalance in how subatomic beauty quarks decay into two flavours of leptons: electrons and muons. If confirmed, that’s a violation of lepton flavour universality as described by the standard model of particle physics.