Physicists from the LHCb Collaboration at CERN’s Large Hadron Collider (LHC) have performed new tests of lepton universality, one of the basic principles of the Standard Model of particle physics. This principle states that the Standard Model treats the three charged leptons (electrons, muons and taus) identically, except for differences due to their different masses. The new results, published in two papers on arXiv.org, are in agreement with the...
