Physicists at CERN find evidence of ultrarare meson particle decay after 40 years

Physicists at CERN have detected evidence of a rare meson particle decay involving the annihilation of a beauty quark with a down-type quark, resulting in a muon and antimuon pair. This discovery, first theorized in 1984, provides important experimental support for predictions made by the Standard Model of particle physics.

Originally published by gnews