Physicists from the ATLAS (A Toroidal LHC ApparatuS) Collaboration at CERN’s Large Hadron Collider (LHC) have found first evidence of the Higgs boson decaying to a low-mass dilepton system (either an electron or a muon pair with opposite charge) and a photon. Known as Dalitz decay, this is one of the rarest Higgs boson decays yet seen at the LHC. Higgs boson candidates decaying to a dilepton pair and a photon. Image credit: ATLAS Collaboration /...
