Are leptons all alike? Is the discovery of a new force imminent?

Recommendable! Well written! The quest to find an undiscovered force continues!

"... Physicists have long made cursory checks to understand if leptons are really as similar to one another as they seem. One aspect they’ve tested for is lepton universality—whether all of the charged leptons and neutral leptons interact via the same forces. ...
Recently, however, data from experiments like CERN’s LHCb and Fermilab’s Muon g-2 have accumulated into a compelling case that muons don’t behave as they’re predicted to. One possibility is that the electron, muon and tau could interact differently from one another, due to the presence of an undiscovered force. ..."

Are leptons all alike? | symmetry magazine Building experimental evidence suggests that the electron, muon and tau may feel different forces.