Rare Higgs Boson Decay Observed in LHC Experiments

The ATLAS and CMS collaborations have found the first evidence of the rare decay of the Higgs boson into a Z boson and a photon, which could provide indirect evidence of the existence of particles beyond those predicted by the Standard Model of particle physics. The result has a statistical significance of 3.4 standard deviations, and the measured signal rate is 1.9 standard deviations above the Standard Model prediction. The discovery could provide valuable insights into both physics beyond the Standard Model and the nature of the Higgs boson.