Faddeev calculation of a K- pp quasibound state

We report on the first genuinely three-body KNN-pi Sigma N coupled-channel Faddeev calculation in search for quasibound states in the K(-)pp system. The main absorptivity in the K(-)p subsystem is accounted for by fitting to K(-)p data near threshold. Our calculation yields one such quasibound state, with I=1/2, J(pi)=0(-), bound in the range B similar to 55-70 MeV, with a width of Gamma similar to 90-110 MeV. These results differ substantially from previous estimates, and are at odds with the K(-)pp ->Lambda p signal observed by the FINUDA collaboration.