No significant signal observed for J/ψ → D_s^- e^+ ν_e + c.c., setting branching fraction upper limit < 9.9 × 10^{-8} at 90% CL and improving prior constraints by an order of magnitude.
Agostinelliet al.[GEANT4 Collaboration], Nucl
2 Pith papers cite this work. Polarity classification is still indexing.
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No signals found for X(3872) to K_S^0 K^± π^∓ or K*(892) K-bar; upper limits on branching fractions relative to π+π- J/ψ are <0.07 and <0.10 at 90% CL.
citing papers explorer
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Search for the charmonium semi-leptonic weak decay $J/\psi\rightarrow D_s^-e^+\nu_e+c.c.$
No significant signal observed for J/ψ → D_s^- e^+ ν_e + c.c., setting branching fraction upper limit < 9.9 × 10^{-8} at 90% CL and improving prior constraints by an order of magnitude.
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Search for the decays $X(3872)\to K_{S}^{0}K^{\pm}\pi^{\mp}$ and $K^*(892)\bar{K}$ at BESIII
No signals found for X(3872) to K_S^0 K^± π^∓ or K*(892) K-bar; upper limits on branching fractions relative to π+π- J/ψ are <0.07 and <0.10 at 90% CL.