N∗ resonances from KΛ amplitudes in sliced bins in energy

The two reactions γp→K+Λγp→K+Λ and π−p→K0Λπ−p→K0Λ are analyzed to determine the leading photoproduction multipoles and the pion-induced partial wave amplitudes in slices of the invariant mass. The multipoles and the partial-wave amplitudes are simultaneously fitted in a multichannel Laurent+Pietarinen model (L+P model), which determines the poles in the complex energy plane on the second Riemann sheet close to the physical axes. The results from the L+P fit are compared with the results of an energy-dependent fit based on the Bonn-Gatchina (BnGa) approach. The study confirms the existence of several poles due to nucleon resonances in the region at about 1.9 GeV with quantum numbers JP=1/2+,3/2+,1/2−,3/2−,5/2−JP=1/2+,3/2+,1/2−,3/2−,5/2−