Energy dependence of K-barN interaction in nuclear medium

When the K-barN system is submerged in nuclear medium the K-barN scattering amplitude and the final state branching ratios exhibit a strong energy dependence when going to energies below the K-barN threshold. A sharp increase of K-barN attraction below the K-barN threshold provides a link between shallow K-bar-nuclear potentials based on the chiral K-barN amplitude evaluated at threshold and the deep phenomenological optical potentials obtained in fits to kaonic atoms data. We show the energy dependence of the in-medium K − p amplitude and demonstrate the impact of energy dependent branching ratios on the Λ-hypernuclear production rates.