At CERN’s Large Hadron Collider, physicists examined a dataset representing roughly 650 billion B-meson decays and found that a transformation occurring only once in a million still behaves differently from Standard Model predictions—one of the strongest surviving hints that another particle or force may be influencing matter from behind the scenes.

LHCb's most comprehensive analysis of the rare B0 to K*0 muon-pair decay preserves a decade-old tension with the Standard Model, but difficult hadronic effects and the sub-five-sigma significance still rule out a discovery claim. The post At CERN’s Large Hadr…