Dalitz decay

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A Dalitz decay is the decay of a meson to two charged leptons and a photon, for example \pi^0 \to e^+ e^- \gamma. It can also be used more generally to refer to any decay of a particle to a massless gauge boson and two (approximately) massless fermions[1].


  1. Giampiero Passarino: Higgs Boson Production and Decay: Dalitz Sector, Phys. Lett. B 727 (2013) 424-431, (inSPIRE:1246141)