Long-distance Contributions to Neutrinoless Double Beta Decay $\pi^- \to\pi^+ e e$

30 Sep 2019 Tuo Xin-Yu Feng Xu Jin Lu-Chang

Neutrinoless double beta decay, if detected, would prove that neutrinos are Majorana fermions and provide the direct evidence for lepton number violation. If such decay would exist in nature, then $\pi^-\pi^-\to ee$ and $\pi^-\to\pi^+ ee$ (or equivalently $\pi^-e^+\to\pi^+ e^-$) are the two simplest processes accessible via first-principle lattice QCD calculations... (read more)

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  • HIGH ENERGY PHYSICS - LATTICE
  • HIGH ENERGY PHYSICS - PHENOMENOLOGY
  • NUCLEAR EXPERIMENT
  • NUCLEAR THEORY