Correlated $\Lambda d$ pairs from the $K^{-}_{stop} A \to \Lambda d A'$ reaction

Understand

Correlated $\Lambda d$ pairs emitted after the absorption of negative kaons at rest $K^{-}_{stop}A\to \Lambda d A'$ in light nuclei $^6Li$ and $^{12}C$ are studied.

• $\Lambda$-hyperons and deuterons are found to be preferentially emitted in opposite directions.
• The $\Lambda d$ invariant mass spectrum of $^6Li$ shows a bump whose mass is 3251$\pm$6 MeV/c$^2$.
• The bump mass (binding energy), width and yield are reported.