Light-front quark model with nonvalence contributions predicts branching ratios for Λ→p ℓ ν̄ decays of 8.32×10^{-4} (electron) and 1.31×10^{-4} (muon) consistent with BESIII.
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Semileptonic Decays of $\Lambda \to p \ell^{-} \bar{\nu}_{\ell}$ in the Light-Front Dynamics
Light-front quark model with nonvalence contributions predicts branching ratios for Λ→p ℓ ν̄ decays of 8.32×10^{-4} (electron) and 1.31×10^{-4} (muon) consistent with BESIII.