First observation of Λ(1520)→γΣ⁰ and Λ(1670)→γΣ⁰ decays with branching fraction measurements that agree with SU(3) symmetry but disagree with some quark model predictions.
Xuet al., Chin
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Flux-averaged cross sections for n-bar p to K+K-pi+ and K+K-pi+pi0 are measured as 0.53 and 1.09 mb using tagged antineutrons from J/psi decays.
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Observation of the electromagnetic radiative decays of the \boldmath{$\Lambda(1520)$} and \boldmath{$\Lambda(1670)$} to \boldmath{$\gamma\Sigma^0$}
First observation of Λ(1520)→γΣ⁰ and Λ(1670)→γΣ⁰ decays with branching fraction measurements that agree with SU(3) symmetry but disagree with some quark model predictions.
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Cross Section Measurements of $\bar{n}p \rightarrow K^{+}K^{-}\pi^{+}(\pi^{0})$ via Antineutrons Produced by $J/\psi \to p \pi^{-} \bar{n}$ Decays
Flux-averaged cross sections for n-bar p to K+K-pi+ and K+K-pi+pi0 are measured as 0.53 and 1.09 mb using tagged antineutrons from J/psi decays.