K$^-$ multi-nucleon absorption cross sections and branching ratios in $Lambda$p and $Sigma^0$p final states

The determination of low-energy cross sections and branching ratios of the K$^-$ multi-nucleon absorption processes in $Lambda$p and $Sigma^0$p final states performed by the AMADEUS collaboration is presented. Low momentum K$^-$ ($p_mathrm{K} simeq$ 127 MeV/c) produced at the DA$Phi$NE collider are impinged on a Carbon target within the KLOE detector and the two and three nucleon absorption processes are disentangled by comparing the experimental data to phenomenological calculations. The $Lambda$p spectra are interpreted in terms of K$^-$ multi-nucleon absorption processes; the possible contribution of a K$^-$pp bound state is demonstrated to overlap with the two nucleon capture process, its absolute yield thus resulting indistinguishable.