Correlated Λt pairs from the absorption of K− at rest in light nuclei

Novel data from the Kstop−A absorption reaction in light nuclei 6,7Li and 9Be are presented. The study aimed at finding Λt correlations. Regardless of A, the Λt pairs are preferentially emitted in opposite directions. Reaction modeling predominantly assigns to the Kstop−A→Λt(N)A′ direct reactions the emission of the Λt pairs whose yield is found to range from 10−3 to 10−4/Kstop−. The experiment was performed with the FINUDA spectrometer at DAΦNE (LNF).