Assertion: electron | /r/AtLocation | weak decays
Facets:
value: equally often
type: DEGREE
Source sentences:
text: By isolating and counting decays of B+ mesons to a kaon and two leptons, the LHCb experiment has tested a key assumption of the Standard Model – lepton universality, the idea that electrons, muons and tau leptons should behave in the same way, and be produced equally often in weak decays.